dl4all.org

dl4all.org is SSL secured

Free website and domain report on dl4all.org

Last Updated: 29th August, 2022 Update Now
Overview

Snoop Summary for dl4all.org

This is a free and comprehensive report about dl4all.org. Dl4all.org is hosted in United States on a server with an IP address of 104.31.16.7, where the local currency is USD and English is the local language. Our records indicate that dl4all.org is privately registered by WhoisGuard, Inc.. Dl4all.org has the potential to be earning an estimated $6 USD per day from advertising revenue. If dl4all.org was to be sold it would possibly be worth $4,281 USD (based on the daily revenue potential of the website over a 24 month period). Dl4all.org receives an estimated 2,053 unique visitors every day - a large amount of traffic! This report was last updated 29th August, 2022.

About dl4all.org

Site Preview: dl4all.org dl4all.org
Title: Dl4All - Download For All
Description: Download Free Applications, Ebooks, Tutorials, Magazines, Music Movies, Games, TV Shows and Related stuff from DL4ALL
Keywords and Tags: audio books, dl4all, ebooks, graphics, magazines, movies, multimedia, operating system, portable, potential illegal software, software, tutorials
Related Terms:
Fav Icon:
Age: Over 8 years old
Domain Created: 9th November, 2015
Domain Updated: 9th October, 2021
Domain Expires: 9th November, 2022
Review

Snoop Score

2/5

Valuation

$4,281 USD
Note: All valuation figures are estimates.

Popularity

Modest
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 295,950
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 2,053
Monthly Visitors: 62,487
Yearly Visitors: 749,345
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $6 USD
Monthly Revenue: $178 USD
Yearly Revenue: $2,136 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: dl4all.org 10
Domain Name: dl4all 6
Extension (TLD): org 3
Expiry Check:

Page Speed Analysis

Average Load Time: 3.31 seconds
Load Time Comparison: Faster than 19% of sites

PageSpeed Insights

Avg. (All Categories) 66
Performance 87
Accessibility 73
Best Practices 67
SEO 83
PWA 22
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://dl4all.org/
Updated: 29th August, 2022

2.27 seconds
First Contentful Paint (FCP)
60%
25%
15%

0.00 seconds
First Input Delay (FID)
98%
2%
0%

Simulate loading on desktop
87

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for dl4all.org. This includes details about optimizing page load times which can result in a better user experience.

Metrics

First Contentful Paint — 0.4 s
The time taken for the first image or text on the page to be rendered.
Time to Interactive — 1.6 s
The time taken for the page to become fully interactive.
Total Blocking Time — 80 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Largest Contentful Paint — 1.2 s
The timing of the largest text or image that is painted.

Audits

First Meaningful Paint — 0.4 s
The time taken for the primary content of the page to be rendered.
Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://dl4all.org/
http/1.1
0
69.009999744594
701
0
301
text/plain
https://dl4all.org/
h2
69.616999942809
1047.9999999516
7557
43635
200
text/html
Document
https://dl4all.org/engine/classes/min/index.php?f=engine/editor/css/default.css&v=17265
h2
1056.4770000055
2043.0430001579
1570
2615
200
text/css
Stylesheet
https://dl4all.org/engine/classes/min/index.php?g=general&v=17265
h2
1056.7769999616
2282.4220000766
31834
85582
200
application/x-javascript
Script
https://dl4all.org/engine/classes/min/index.php?f=engine/classes/js/jqueryui.js,engine/classes/js/dle_js.js&v=17265
h2
2307.6329999603
3793.3319997974
36626
131864
200
application/x-javascript
Script
https://dl4all.org/templates/dl4all/css/dtree.css
h2
1057.2130000219
2013.801000081
937
365
200
text/css
Stylesheet
https://dl4all.org/templates/dl4all/css/style.css
h2
1057.4360000901
1117.1200000681
1960
3903
200
text/css
Stylesheet
https://dl4all.org/templates/dl4all/css/engine.css
h2
1057.665000204
1130.2390000783
23326
70803
200
text/css
Stylesheet
https://dl4all.org/templates/dl4all/images/o.png
h2
2307.8450001776
3518.354000058
28001
27204
200
image/png
Image
https://dl4all.org/templates/dl4all/images/search.gif
h2
2307.976000011
2409.4340000302
1167
370
200
image/gif
Image
https://dl4all.org/templates/dl4all/images/base.gif
h2
2308.1640000455
3254.1149999015
1792
996
200
image/gif
Image
https://dl4all.org/templates/dl4all/images/join.gif
h2
2308.3449997939
3507.5590000488
862
74
200
image/gif
Image
https://dl4all.org/templates/dl4all/images/page.gif
h2
2308.5139999166
3543.6189998873
1748
954
200
image/gif
Image
https://dl4all.org/templates/dl4all/images/join1.gif
h2
2308.6759997532
2368.7390000559
868
73
200
image/gif
Image
https://dl4all.org/templates/dl4all/images/comments.gif
h2
2308.9080001228
2338.1710001267
1166
369
200
image/gif
Image
https://dl4all.org/uploads/posts/2022-08/1661782029_1661782120.jpg
h2
2309.131000191
3245.0379999354
25497
24703
200
image/jpeg
Image
https://dl4all.org/templates/dl4all/images/dlet_artblock_point_1.gif
h2
2309.2769999057
3276.2659997679
842
50
200
image/gif
Image
https://dl4all.org/uploads/posts/2022-08/1661782077_1661782098.jpg
h2
2309.4409997575
4008.9320000261
42762
41973
200
image/jpeg
Image
https://fastpic.org/view/120/2022/0829/_58ae0d40b04e35ed9926ee6ab43204b2.jpg.html
h2
2309.6349998377
2967.1780001372
29662
66981
200
text/html
Image
https://dl4all.org/uploads/posts/2022-08/1661782081_1661782081.jpg
h2
2309.828999918
3253.3220001496
222303
221505
200
image/jpeg
Image
https://dl4all.org/uploads/posts/2022-08/1661782031_1661782071.jpg
h2
2309.9960000254
3240.3429998085
107976
107174
200
image/jpeg
Image
https://dl4all.org/uploads/posts/2022-08/1661782064_1661782044.jpg
h2
2310.1200000383
3556.2539999373
105540
104740
200
image/jpeg
Image
https://dl4all.org/uploads/posts/2022-08/1661782055_1661782015.jpg
h2
2310.2870001458
4034.1539997607
79256
78466
200
image/jpeg
Image
https://dl4all.org/uploads/posts/2022-08/1661782025_1661781972.jpg
h2
2310.457999818
3276.9039999694
142069
141273
200
image/jpeg
Image
https://i120.fastpic.org/big/2022/0829/24/80cf4e9a9757db4132aafa28130a8124.png
h2
2310.602999758
2972.0410001464
39050
38765
200
image/png
Image
https://dl4all.org/uploads/posts/2022-08/1661781947_1661781968.jpg
h2
2310.7619998045
3526.149999816
41882
41086
200
image/jpeg
Image
https://dl4all.org/templates/dl4all/css/slim-081711.css
h2
2044.2490000278
3001.5599997714
1476
1887
200
text/css
Stylesheet
https://s7.addthis.com/js/300/addthis_widget.js
h2
2290.7139998861
2322.4329999648
116718
361292
200
application/javascript
Script
https://lephaush.net/5/5286476
h2
2310.8520000242
2710.1909997873
604
0
204
text/plain
Script
https://dl4all.org/templates/dl4all/images/top-bg.png
h2
2313.3939998224
3263.5160000063
1582
780
200
image/png
Image
https://dl4all.org/templates/dl4all/images/middle-box.gif
h2
2314.3190001138
3217.5469999202
862
62
200
image/gif
Image
https://dl4all.org/templates/dl4all/images/menu-bg.gif
h2
2314.6669999696
3492.1070002019
1095
297
200
image/gif
Image
https://dl4all.org/templates/dl4all/images/bottom-box.gif
h2
2317.5260000862
2380.2899997681
996
200
200
image/gif
Image
https://dl4all.org/templates/dl4all/dleimages/rating.png
h2
2339.60200008
2403.8680000231
2062
1260
200
image/png
Image
https://dl4all.org/templates/dl4all/images/seperator-bg.gif
h2
2340.1170000434
3355.6180000305
1094
296
200
image/gif
Image
https://dl4all.org/templates/dl4all/images/dlet_field_a.gif
h2
2358.024999965
2383.6779999547
1400
601
200
image/gif
Image
https://z.moatads.com/addthismoatframe568911941483/moatframe.js
h2
3068.3389999904
3088.8169999234
1410
1705
200
application/x-javascript
Script
https://v1.addthisedge.com/live/boost/ra-5c0fe7aa15a700c8/_ate.track.config_resp
h2
3823.6960000359
4006.2179998495
616
703
200
application/javascript
Script
https://m.addthis.com/live/red_lojson/300lo.json?si=630d3fabd34e59b3&bkl=0&bl=1&pdt=1063&sid=630d3fabd34e59b3&pub=ra-5c0fe7aa15a700c8&rev=v8.28.8-wp&ln=en&pc=men&cb=0&ab=-&dp=dl4all.org&fp=&fr=&of=0&pd=0&irt=0&vcl=0&md=0&ct=1&tct=0&abt=0&cdn=0&pi=1&rb=0&gen=100&chr=UTF-8&mk=Dl4all%2Cdl4all%2CDL4ALL%2CSoftware%2COperating%20System%2CPortable%2CMultimedia%2CTutorials%2CeBooks%2CAudio%20Books%2CMagazines%2CGraphics%2CMovies&colc=1661812651935&jsl=1&uvs=630d3fabbd043db6000&skipb=1&callback=addthis.cbs.jsonp__35373731811937880
h2
3834.6600001678
4025.4239998758
2550
136
200
application/javascript
Script
https://s7.addthis.com/static/sh.f48a1a04fe8dbf021b4cda1d.html
3836.13099996
3837.123000063
0
0
-1
Document
https://s7.addthis.com/static/sh.f48a1a04fe8dbf021b4cda1d.html
h2
3842.9490001872
3933.5039998405
26853
72412
200
text/html
Document
https://dl4all.org/cdn-cgi/challenge-platform/h/b/scripts/alpha/invisible.js?ts=1661803200
h2
3842.0359999873
3865.8590000123
15793
44505
200
application/javascript
Script
https://dl4all.org/cdn-cgi/challenge-platform/h/b/scripts/pica.js
h2
3880.4000001401
3905.9150000103
9755
27638
200
application/javascript
Other
https://s7.addthis.com/static/layers.fa6cd1947ce26e890d3d.js
h2
4010.1669998839
4043.6470001005
78023
269557
200
application/javascript
Script
data
4102.8229999356
4102.9960000888
0
2098
200
image/svg+xml
Image
https://dl4all.org/engine/classes/highslide/highslide.js?_=1661812650407
h2
4159.7759998403
5616.0039999522
16151
47095
200
application/javascript
XHR
https://dl4all.org/cdn-cgi/challenge-platform/h/b/cv/result/7428c57b58c37fc3
h2
4882.0190001279
4928.3159999177
970
2
200
text/plain
XHR
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
1053.086
17.608
2292.028
13.913
2305.996
6.737
2312.744
16.123
2339.353
12.206
2356.684
13.364
3004.448
79.554
3249.462
6.638
3273.84
6.67
3290.521
10.05
3801.587
40.672
3939.376
7.761
3949.893
24.02
4009.107
5.269
4015.475
5.783
4054.196
33.217
4090.929
38.727
4129.885
23.161
4153.712
8.962
4163.276
5.58
4456.643
427.107
4885.16
10.832
5617.911
8.243
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Other

Eliminate render-blocking resources
Resources, such as JavaScript and style sheets, can block the first paint of the page. Dl4all.org should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
Properly size images
Images can slow down the page's load time. Dl4all.org should consider serving more appropriate-sized images.
Minify CSS — Potential savings of 2 KiB
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Dl4all.org should consider minifying CSS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://dl4all.org/templates/dl4all/css/engine.css
23326
2090
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Dl4all.org should consider minifying JS files.
Reduce unused CSS — Potential savings of 23 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Dl4all.org should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://dl4all.org/templates/dl4all/css/engine.css
23326
23131
Reduce unused JavaScript — Potential savings of 155 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://s7.addthis.com/js/300/addthis_widget.js
116718
56913
https://s7.addthis.com/static/layers.fa6cd1947ce26e890d3d.js
78023
36392
https://s7.addthis.com/static/sh.f48a1a04fe8dbf021b4cda1d.html
72197
32952
https://dl4all.org/engine/classes/min/index.php?f=engine/classes/js/jqueryui.js,engine/classes/js/dle_js.js&v=17265
36626
32111
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Avoid multiple page redirects — Potential savings of 190 ms
Redirects can cause additional delays before the page can begin loading. Dl4all.org should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://dl4all.org/
190
https://dl4all.org/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Dl4all.org should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 0 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://s7.addthis.com/static/layers.fa6cd1947ce26e890d3d.js
58
https://s7.addthis.com/js/300/addthis_widget.js
54
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://dl4all.org/uploads/posts/2022-08/1661782029_1661782120.jpg
0
Avoids enormous network payloads — Total size was 1,228 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://dl4all.org/uploads/posts/2022-08/1661782081_1661782081.jpg
222303
https://dl4all.org/uploads/posts/2022-08/1661782025_1661781972.jpg
142069
https://s7.addthis.com/js/300/addthis_widget.js
116718
https://dl4all.org/uploads/posts/2022-08/1661782031_1661782071.jpg
107976
https://dl4all.org/uploads/posts/2022-08/1661782064_1661782044.jpg
105540
https://dl4all.org/uploads/posts/2022-08/1661782055_1661782015.jpg
79256
https://s7.addthis.com/static/layers.fa6cd1947ce26e890d3d.js
78023
https://dl4all.org/uploads/posts/2022-08/1661782077_1661782098.jpg
42762
https://dl4all.org/uploads/posts/2022-08/1661781947_1661781968.jpg
41882
https://i120.fastpic.org/big/2022/0829/24/80cf4e9a9757db4132aafa28130a8124.png
39050
Avoids an excessive DOM size — 687 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
687
Maximum DOM Depth
14
Maximum Child Elements
61
Avoid chaining critical requests — 8 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Dl4all.org should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures — 2 user timings
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Name Type Start Time (Ms) Duration (Ms)
addthis.render_toolbox
Mark
4014.186
addthis.render_layers_expandingsharebutton
Mark
4092.828
JavaScript execution time — 0.6 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://dl4all.org/cdn-cgi/challenge-platform/h/b/scripts/alpha/invisible.js?ts=1661803200
432.924
417.433
1.881
https://dl4all.org/
209.182
12.345
3.181
https://s7.addthis.com/js/300/addthis_widget.js
131.811
103.035
6.649
https://s7.addthis.com/static/layers.fa6cd1947ce26e890d3d.js
84.338
44.647
4.328
Unattributable
71.841
3.182
0.137
Minimizes main-thread work — 1.0 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
644.834
Other
118.869
Style & Layout
103.25
Rendering
85.301
Script Parsing & Compilation
26.018
Parse HTML & CSS
23.522
Garbage Collection
21.762
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 46 requests • 1,228 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
46
1256964
Image
25
881534
Script
9
284174
Document
3
34410
Stylesheet
5
29269
Other
4
27577
Media
0
0
Font
0
0
Third-party
10
295486
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
224760
0
1410
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Element
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.05455307720615
0.027952092828227
0.021453457328261
0.014927202739761
0.013401688342301
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 1 long task found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://dl4all.org/cdn-cgi/challenge-platform/h/b/scripts/alpha/invisible.js?ts=1661803200
1940
214
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of dl4all.org on mobile screens.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

Speed Index — 2.3 s
The time taken for the page contents to be visibly populated.
Cumulative Layout Shift — 0.178
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Audits

Max Potential First Input Delay — 210 ms
Users could experience a delay when interacting with the page.

Other

Defer offscreen images — Potential savings of 500 KiB
Time to Interactive can be slowed down by resources on the page. Dl4all.org should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://dl4all.org/uploads/posts/2022-08/1661782025_1661781972.jpg
141273
141273
https://dl4all.org/uploads/posts/2022-08/1661782031_1661782071.jpg
107174
107174
https://dl4all.org/uploads/posts/2022-08/1661782064_1661782044.jpg
104740
104740
https://dl4all.org/uploads/posts/2022-08/1661782055_1661782015.jpg
78466
78466
https://dl4all.org/uploads/posts/2022-08/1661781947_1661781968.jpg
41086
41086
https://i120.fastpic.org/big/2022/0829/24/80cf4e9a9757db4132aafa28130a8124.png
38765
38765
Serve images in next-gen formats — Potential savings of 383 KiB
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://dl4all.org/uploads/posts/2022-08/1661782081_1661782081.jpg
221505
103683.1
https://dl4all.org/uploads/posts/2022-08/1661782025_1661781972.jpg
141273
64659.85
https://dl4all.org/uploads/posts/2022-08/1661782064_1661782044.jpg
104740
47669.9
https://dl4all.org/uploads/posts/2022-08/1661782031_1661782071.jpg
107174
46453
https://dl4all.org/uploads/posts/2022-08/1661782055_1661782015.jpg
78466
35746.75
https://i120.fastpic.org/big/2022/0829/24/80cf4e9a9757db4132aafa28130a8124.png
38765
24910.75
https://dl4all.org/templates/dl4all/images/o.png
27204
21821.95
https://dl4all.org/uploads/posts/2022-08/1661781947_1661781968.jpg
41086
18315.35
https://dl4all.org/uploads/posts/2022-08/1661782077_1661782098.jpg
41973
17809.3
https://dl4all.org/uploads/posts/2022-08/1661782029_1661782120.jpg
24703
11053.3

Other

Reduce initial server response time — Root document took 980 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://dl4all.org/
979.376
Serve static assets with an efficient cache policy — 32 resources found
Dl4all.org can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://i120.fastpic.org/big/2022/0829/24/80cf4e9a9757db4132aafa28130a8124.png
0
39050
https://v1.addthisedge.com/live/boost/ra-5c0fe7aa15a700c8/_ate.track.config_resp
51000
616
https://s7.addthis.com/js/300/addthis_widget.js
600000
116718
https://dl4all.org/uploads/posts/2022-08/1661782081_1661782081.jpg
14400000
222303
https://dl4all.org/uploads/posts/2022-08/1661782025_1661781972.jpg
14400000
142069
https://dl4all.org/uploads/posts/2022-08/1661782031_1661782071.jpg
14400000
107976
https://dl4all.org/uploads/posts/2022-08/1661782064_1661782044.jpg
14400000
105540
https://dl4all.org/uploads/posts/2022-08/1661782055_1661782015.jpg
14400000
79256
https://dl4all.org/uploads/posts/2022-08/1661782077_1661782098.jpg
14400000
42762
https://dl4all.org/uploads/posts/2022-08/1661781947_1661781968.jpg
14400000
41882
https://dl4all.org/templates/dl4all/images/o.png
14400000
28001
https://dl4all.org/uploads/posts/2022-08/1661782029_1661782120.jpg
14400000
25497
https://dl4all.org/templates/dl4all/css/engine.css
14400000
23326
https://dl4all.org/cdn-cgi/challenge-platform/h/b/scripts/alpha/invisible.js?ts=1661803200
14400000
15793
https://dl4all.org/templates/dl4all/dleimages/rating.png
14400000
2062
https://dl4all.org/templates/dl4all/css/style.css
14400000
1960
https://dl4all.org/templates/dl4all/images/base.gif
14400000
1792
https://dl4all.org/templates/dl4all/images/page.gif
14400000
1748
https://dl4all.org/templates/dl4all/images/top-bg.png
14400000
1582
https://dl4all.org/templates/dl4all/css/slim-081711.css
14400000
1476
https://dl4all.org/templates/dl4all/images/dlet_field_a.gif
14400000
1400
https://dl4all.org/templates/dl4all/images/search.gif
14400000
1167
https://dl4all.org/templates/dl4all/images/comments.gif
14400000
1166
https://dl4all.org/templates/dl4all/images/menu-bg.gif
14400000
1095
https://dl4all.org/templates/dl4all/images/seperator-bg.gif
14400000
1094
https://dl4all.org/templates/dl4all/images/bottom-box.gif
14400000
996
https://dl4all.org/templates/dl4all/css/dtree.css
14400000
937
https://dl4all.org/templates/dl4all/images/join1.gif
14400000
868
https://dl4all.org/templates/dl4all/images/join.gif
14400000
862
https://dl4all.org/templates/dl4all/images/middle-box.gif
14400000
862
https://dl4all.org/templates/dl4all/images/dlet_artblock_point_1.gif
14400000
842
https://z.moatads.com/addthismoatframe568911941483/moatframe.js
64414000
1410
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL
https://dl4all.org/uploads/posts/2022-08/1661782081_1661782081.jpg
https://dl4all.org/uploads/posts/2022-08/1661782025_1661781972.jpg
https://dl4all.org/uploads/posts/2022-08/1661782064_1661782044.jpg
https://dl4all.org/uploads/posts/2022-08/1661782031_1661782071.jpg
https://dl4all.org/uploads/posts/2022-08/1661782055_1661782015.jpg
https://dl4all.org/uploads/posts/2022-08/1661781947_1661781968.jpg
https://dl4all.org/uploads/posts/2022-08/1661782077_1661782098.jpg
https://dl4all.org/uploads/posts/2022-08/1661782029_1661782120.jpg
https://i120.fastpic.org/big/2022/0829/24/80cf4e9a9757db4132aafa28130a8124.png
https://fastpic.org/view/120/2022/0829/_58ae0d40b04e35ed9926ee6ab43204b2.jpg.html
Registers an `unload` listener
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Source
73

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of dl4all.org. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Dl4all.org may provide assistance to deaf or hearing-impaired users with captions on videos.

Contrast

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements

Names and labels

`<input type="image">` elements do not have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Failing Elements
Form elements do not have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Failing Elements
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
67

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that dl4all.org should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
2.2.4
jQuery UI
1.9.2
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://dl4all.org/
Allowed
Includes front-end JavaScript libraries with known security vulnerabilities — 10 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
4
Medium
6
High

Audits

Page lacks the HTML doctype, thus triggering quirks-mode
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.

Audits

Uses deprecated APIs — 1 warning found
Avoid deprecated APIs which will eventually be removed the browser.
Deprecation / Warning Source
'window.webkitStorageInfo' is deprecated. Please use 'navigator.webkitTemporaryStorage' or 'navigator.webkitPersistentStorage' instead.
83

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for dl4all.org. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of dl4all.org on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Content Best Practices

Links do not have descriptive text — 10 links found
Make use of descriptive link text to assist search engines in understanding the content.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
22

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of dl4all.org. This includes details about web app manifests.

PWA Optimized

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of dl4all.org on mobile screens.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 69
Performance 70
Accessibility 70
Best Practices 69
SEO 90
Progressive Web App 46
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
Simulate loading on mobile
70

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for dl4all.org. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Total Blocking Time — 120 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

First CPU Idle — 3.5 s
The time taken for the page's main thread to be quiet enough to handle input.
Estimated Input Latency — 10 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive dl4all.org as laggy when the latency is higher than 0.05 seconds.
Network Requests
Below is a list of network requests that were made during page load.
URL Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://dl4all.org/
0
125.42900000699
525
0
301
text/html
https://dl4all.org/
125.92599983327
979.84499996528
6066
25586
200
text/html
Document
https://dl4all.org/engine/editor/css/default.css?v=22
1023.2879999094
1236.6639999673
2848
2615
200
text/css
Stylesheet
https://dl4all.org/engine/classes/js/jquery.js?v=22
1023.6349999905
1335.3909999132
85830
85582
200
application/javascript
Script
https://dl4all.org/engine/classes/js/jqueryui.js?v=22
1023.9489998203
1351.6599999275
96594
96346
200
application/javascript
Script
https://dl4all.org/engine/classes/js/dle_js.js?v=22
1024.0749998484
1284.6569998655
30335
30087
200
application/javascript
Script
https://dl4all.org/templates/smartphone/css/engine.css
1024.267999921
1245.5189998727
9608
9375
200
text/css
Stylesheet
https://dl4all.org/templates/smartphone/css/style.css
1024.3819998577
1297.7879999671
17763
17529
200
text/css
Stylesheet
https://dl4all.org/templates/smartphone/js/libs.js
1024.4949997868
1234.0239998884
567
321
200
application/javascript
Script
https://i113.fastpic.ru/big/2020/0716/6a/438653d8e32f8240d7cf52f9cc5d556a.jpg
1342.6689999178
1731.5239999443
43951
43648
200
image/jpeg
Image
https://i113.fastpic.ru/big/2020/0716/9d/9496add779b4d73af468ead18372e39d.jpg
1412.4199999496
1796.6310000047
57354
57051
200
image/jpeg
Image
https://i113.fastpic.ru/big/2020/0716/e5/9be96f3c138435078aafc7a5d67797e5.jpg
1450.588000007
1717.894999776
28732
28429
200
image/jpeg
Image
https://i113.fastpic.ru/big/2020/0716/4d/58a40362b871692189838bfbd842b64d.jpg
1450.7729997858
2358.3970000036
84461
84157
200
image/jpeg
Image
https://i113.fastpic.ru/big/2020/0716/2d/dcd2fa1d84a77078dbf80e845ee93f2d.jpg
1450.9139999282
2227.108999854
46944
46641
200
image/jpeg
Image
https://i113.fastpic.ru/big/2020/0716/3c/5132e9eb3ed67f1712972eeb97278c3c.jpg
1451.1549999006
2050.9389999788
109668
109363
200
image/jpeg
Image
https://i113.fastpic.ru/big/2020/0716/2d/be9b85566dc450533e4f9fe7be67672d.jpg
1451.424999861
2118.6559998896
28732
28429
200
image/jpeg
Image
https://i113.fastpic.ru/big/2020/0716/84/d0daeb9f2b493e290e2e72d5694d0c84.jpg
1451.5819998924
1712.583999848
32393
32090
200
image/jpeg
Image
https://i112.fastpic.ru/big/2020/0710/6b/a105e7147648bbe1229ca70ab945036b.jpg
1451.7639998812
1715.3649998363
36883
36580
200
image/jpeg
Image
https://i113.fastpic.ru/big/2020/0716/ff/41dfad30b9477eb67eddd25e2cbd5bff.jpg
1452.0289998036
1839.3189997878
48315
48012
200
image/jpeg
Image
https://dl4all.org/templates/smartphone/images/sprite.png
1460.1829999592
1515.7929998823
4573
4339
200
image/png
Image
https://dl4all.org/templates/smartphone/images/bg.jpg
1460.5659998488
1516.3629997987
3935
3700
200
image/jpeg
Image
https://dl4all.org/templates/smartphone/images/dbg.png
1467.257999815
1522.536000004
2274
2040
200
image/png
Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
1026.028
23.619
1058.833
10.046
1276.726
10.049
1382.074
64.516
1451.787
43.368
1495.181
187.169
1684.669
23.797
1708.559
7.216
1786.015
5.097
2402.214
9.971
2419.222
16.598
3395.843
19.489
3511.306
16.659
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Opportunities

Properly size images
Images can slow down the page's load time. Dl4all.org should consider serving more appropriate-sized images.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Dl4all.org should consider minifying JS files.
Remove unused CSS
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Dl4all.org should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
Efficiently encode images — Potential savings of 20 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://i113.fastpic.ru/big/2020/0716/3c/5132e9eb3ed67f1712972eeb97278c3c.jpg
109363
15167
https://i113.fastpic.ru/big/2020/0716/ff/41dfad30b9477eb67eddd25e2cbd5bff.jpg
48012
5754
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Avoid multiple page redirects — Potential savings of 630 ms
Redirects can cause additional delays before the page can begin loading. Dl4all.org should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
(Start) http://dl4all.org/
0
https://dl4all.org/
630
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Dl4all.org should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.

Diagnostics

Avoids enormous network payloads — Total size was 760 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://i113.fastpic.ru/big/2020/0716/3c/5132e9eb3ed67f1712972eeb97278c3c.jpg
109668
https://dl4all.org/engine/classes/js/jqueryui.js?v=22
96594
https://dl4all.org/engine/classes/js/jquery.js?v=22
85830
https://i113.fastpic.ru/big/2020/0716/4d/58a40362b871692189838bfbd842b64d.jpg
84461
https://i113.fastpic.ru/big/2020/0716/9d/9496add779b4d73af468ead18372e39d.jpg
57354
https://i113.fastpic.ru/big/2020/0716/ff/41dfad30b9477eb67eddd25e2cbd5bff.jpg
48315
https://i113.fastpic.ru/big/2020/0716/2d/dcd2fa1d84a77078dbf80e845ee93f2d.jpg
46944
https://i113.fastpic.ru/big/2020/0716/6a/438653d8e32f8240d7cf52f9cc5d556a.jpg
43951
https://i112.fastpic.ru/big/2020/0710/6b/a105e7147648bbe1229ca70ab945036b.jpg
36883
https://i113.fastpic.ru/big/2020/0716/84/d0daeb9f2b493e290e2e72d5694d0c84.jpg
32393
Avoids an excessive DOM size — 421 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
421
Maximum DOM Depth
8
Maximum Child Elements
15
Avoid chaining critical requests — 7 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Dl4all.org should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 0.4 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://dl4all.org/
1131.12
22.668
9.068
Unattributable
471.596
46.276
15.8
https://dl4all.org/engine/classes/js/jquery.js?v=22
307.608
254.912
6.852
https://dl4all.org/engine/classes/js/jqueryui.js?v=22
129.688
66.656
9.048
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 22 requests • 760 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
22
778351
Image
13
528215
Script
4
213326
Stylesheet
3
30219
Document
1
6066
Other
1
525
Media
0
0
Font
0
0
Third-party
10
517433
Minimize third-party usage
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Avoid large layout shifts
Below is a list of all DOM elements that contribute to the CLS of the page.
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 7 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://dl4all.org/
1244
374
https://dl4all.org/engine/classes/js/jquery.js?v=22
5580
258
https://dl4all.org/
1110
94
https://dl4all.org/engine/classes/js/jqueryui.js?v=22
6870
87
Unattributable
696
78
Unattributable
774
67
Unattributable
630
66

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

First Contentful Paint — 3.4 s
The time taken for the first image or text on the page to be rendered.
Speed Index — 5.6 s
The time taken for the page contents to be visibly populated.
Time to Interactive — 5.1 s
The time taken for the page to become fully interactive.

Other

First Meaningful Paint — 3.5 s
The time taken for the primary content of the page to be rendered.

Opportunities

Minify CSS — Potential savings of 5 KiB
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Dl4all.org should consider minifying CSS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://dl4all.org/templates/smartphone/css/style.css
17763
2908
https://dl4all.org/templates/smartphone/css/engine.css
9608
2579
Serve images in next-gen formats — Potential savings of 96 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://i113.fastpic.ru/big/2020/0716/3c/5132e9eb3ed67f1712972eeb97278c3c.jpg
109363
50149
https://i113.fastpic.ru/big/2020/0716/ff/41dfad30b9477eb67eddd25e2cbd5bff.jpg
48012
19410
https://i113.fastpic.ru/big/2020/0716/6a/438653d8e32f8240d7cf52f9cc5d556a.jpg
43648
11008
https://i113.fastpic.ru/big/2020/0716/84/d0daeb9f2b493e290e2e72d5694d0c84.jpg
32090
9926
https://i113.fastpic.ru/big/2020/0716/2d/dcd2fa1d84a77078dbf80e845ee93f2d.jpg
46641
8297

Diagnostics

Minimize main-thread work — 2.1 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Other
616.276
Style & Layout
531.02
Script Evaluation
391.548
Rendering
361.348
Parse HTML & CSS
140.284
Script Parsing & Compilation
49.648

Metrics

Largest Contentful Paint — 4.3 s
The timing of the largest text or image that is painted.

Other

Max Potential First Input Delay — 260 ms
Users could experience a delay when interacting with the page.
First Contentful Paint (3G) — 6996 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.

Opportunities

Eliminate render-blocking resources — Potential savings of 1,980 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Dl4all.org should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://dl4all.org/engine/editor/css/default.css?v=22
2848
180
https://dl4all.org/engine/classes/js/jquery.js?v=22
85830
1830
https://dl4all.org/engine/classes/js/jqueryui.js?v=22
96594
1830
https://dl4all.org/engine/classes/js/dle_js.js?v=22
30335
1080
https://dl4all.org/templates/smartphone/css/engine.css
9608
630
https://dl4all.org/templates/smartphone/css/style.css
17763
930
https://dl4all.org/templates/smartphone/js/libs.js
567
180
Defer offscreen images — Potential savings of 403 KiB
Time to Interactive can be slowed down by resources on the page. Dl4all.org should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://i113.fastpic.ru/big/2020/0716/3c/5132e9eb3ed67f1712972eeb97278c3c.jpg
109363
109363
https://i113.fastpic.ru/big/2020/0716/4d/58a40362b871692189838bfbd842b64d.jpg
84157
84157
https://i113.fastpic.ru/big/2020/0716/ff/41dfad30b9477eb67eddd25e2cbd5bff.jpg
48012
48012
https://i113.fastpic.ru/big/2020/0716/2d/dcd2fa1d84a77078dbf80e845ee93f2d.jpg
46641
46641
https://i112.fastpic.ru/big/2020/0710/6b/a105e7147648bbe1229ca70ab945036b.jpg
36580
36580
https://i113.fastpic.ru/big/2020/0716/84/d0daeb9f2b493e290e2e72d5694d0c84.jpg
32090
32090
https://i113.fastpic.ru/big/2020/0716/2d/be9b85566dc450533e4f9fe7be67672d.jpg
28429
28429
https://i113.fastpic.ru/big/2020/0716/e5/9be96f3c138435078aafc7a5d67797e5.jpg
28429
27244
Remove unused JavaScript — Potential savings of 160 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://dl4all.org/engine/classes/js/jqueryui.js?v=22
96594
81250
https://dl4all.org/engine/classes/js/jquery.js?v=22
85830
52523
https://dl4all.org/engine/classes/js/dle_js.js?v=22
30335
29709
Enable text compression — Potential savings of 166 KiB
Text-based resources should be served with compression, such as gzip, deflate or brotli.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://dl4all.org/engine/classes/js/jqueryui.js?v=22
96346
69324
https://dl4all.org/engine/classes/js/jquery.js?v=22
85582
55717
https://dl4all.org/engine/classes/js/dle_js.js?v=22
30087
23165
https://dl4all.org/templates/smartphone/css/style.css
17529
12988
https://dl4all.org/templates/smartphone/css/engine.css
9375
6564
https://dl4all.org/engine/editor/css/default.css?v=22
2615
1884
Reduce initial server response time — Root document took 850 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.

Diagnostics

Serve static assets with an efficient cache policy — 20 resources found
Dl4all.org can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://i113.fastpic.ru/big/2020/0716/3c/5132e9eb3ed67f1712972eeb97278c3c.jpg
0
109668
https://dl4all.org/engine/classes/js/jqueryui.js?v=22
0
96594
https://dl4all.org/engine/classes/js/jquery.js?v=22
0
85830
https://i113.fastpic.ru/big/2020/0716/4d/58a40362b871692189838bfbd842b64d.jpg
0
84461
https://i113.fastpic.ru/big/2020/0716/9d/9496add779b4d73af468ead18372e39d.jpg
0
57354
https://i113.fastpic.ru/big/2020/0716/ff/41dfad30b9477eb67eddd25e2cbd5bff.jpg
0
48315
https://i113.fastpic.ru/big/2020/0716/2d/dcd2fa1d84a77078dbf80e845ee93f2d.jpg
0
46944
https://i113.fastpic.ru/big/2020/0716/6a/438653d8e32f8240d7cf52f9cc5d556a.jpg
0
43951
https://i112.fastpic.ru/big/2020/0710/6b/a105e7147648bbe1229ca70ab945036b.jpg
0
36883
https://i113.fastpic.ru/big/2020/0716/84/d0daeb9f2b493e290e2e72d5694d0c84.jpg
0
32393
https://dl4all.org/engine/classes/js/dle_js.js?v=22
0
30335
https://i113.fastpic.ru/big/2020/0716/2d/be9b85566dc450533e4f9fe7be67672d.jpg
0
28732
https://i113.fastpic.ru/big/2020/0716/e5/9be96f3c138435078aafc7a5d67797e5.jpg
0
28732
https://dl4all.org/templates/smartphone/css/style.css
0
17763
https://dl4all.org/templates/smartphone/css/engine.css
0
9608
https://dl4all.org/templates/smartphone/images/sprite.png
0
4573
https://dl4all.org/templates/smartphone/images/bg.jpg
0
3935
https://dl4all.org/engine/editor/css/default.css?v=22
0
2848
https://dl4all.org/templates/smartphone/images/dbg.png
0
2274
https://dl4all.org/templates/smartphone/js/libs.js
0
567
70

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of dl4all.org. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Presentational `<table>` elements avoid using `<th>`, `<caption>` or the `[summary]` attribute.
It is advised to not include data elements in tables which are used for layout purposes, as it may create confusion for screen reader and other assistive technology users.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Dl4all.org may provide assistance to deaf or hearing-impaired users with captions on videos.
`<video>` elements contain a `<track>` element with `[kind="description"]`
Dl4all.org may provide relevant information that dialogue cannot, by using audio descriptions.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements

Names and labels

Form elements do not have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Failing Elements

Best practices

`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
69

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that dl4all.org should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
2.2.4
jQuery UI
1.9.2
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://dl4all.org/
Links to cross-origin destinations are unsafe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Includes front-end JavaScript libraries with known security vulnerabilities — 7 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
4
Medium
3
High

Audits

Serves images with low resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
URL Displayed size Actual size Expected size
https://i113.fastpic.ru/big/2020/0716/6a/438653d8e32f8240d7cf52f9cc5d556a.jpg
320 x 480
400 x 600
840 x 1260
90

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for dl4all.org. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of dl4all.org on mobile screens.
Document uses legible font sizes — 91.07% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video
8.93%
11.2px
91.07%
≥ 12px

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Tap targets are not sized appropriately — 82% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.
Tap Target Size Overlapping Target
37x12
37x12
37x12
37x12
37x12
37x12
37x12
37x12
37x12
320x30
320x30

Content Best Practices

Links do not have descriptive text — 10 links found
Make use of descriptive link text to assist search engines in understanding the content.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
46

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of dl4all.org. This includes details about web app manifests.

Fast and reliable

Page load is fast enough on mobile networks
Ensure that the page loads fast enough over a cellular network, to ensure good mobile user experience.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of dl4all.org on mobile screens.
Contains some content when JavaScript is not available
Apps should display alternative content for when JavaScript is disabled.

Fast and reliable

Current page does not respond with a 200 when offline
In order for Progressive Web Apps to be made available offline, ensure that the app is using a service worker.
`start_url` does not respond with a 200 when offline
Consider using a service worker for Progressive Web Apps to ensure greater reliability for the user, in the case of poor network conditions.

Installable

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://dl4all.org/
Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Web app manifest does not meet the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
View Data

PWA Optimized

Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 104.31.16.7
Continent: North America
Country: United States
United States Flag
Region:
City:
Longitude: -97.822
Latitude: 37.751
Currencies: USD
USN
USS
Languages: English

Web Hosting Provider

Name IP Address
Cloudflare, Inc.
Registration

Domain Registrant

Private Registration: Yes
Name: WhoisGuard Protected
Organization: WhoisGuard, Inc.
Country: PA
City: Panama
State: Panama
Post Code: 00000
Email: 7ae015fa7a78407e9d596789f45b03f8.protect@whoisguard.com
Phone: +507.8365503
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Name IP Address
Public Interest Registry 104.16.99.56
Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Unknown
WOT Rating:
WOT Trustworthiness:
WOT Child Safety:
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: sni.cloudflaressl.com
Issued By: Cloudflare Inc ECC CA-3
Valid From: 11th May, 2022
Valid To: 11th May, 2023
Subject: CN = sni.cloudflaressl.com
O = Cloudflare, Inc.
L = San Francisco
S = US
Hash: c959965e
Issuer: CN = Cloudflare Inc ECC CA-3
O = Cloudflare, Inc.
S = US
Version: 2
Serial Number: 3643426159955596493079741569695061780
Serial Number (Hex): 02BDB2C7569FCBB2D9784494DA959714
Valid From: 11th May, 2024
Valid To: 11th May, 2024
Signature Algorithm (Short Name): ecdsa-with-SHA256
Signature Algorithm (Long Name): ecdsa-with-SHA256
Authority Key Identifier: keyid:A5:CE:37:EA:EB:B0:75:0E:94:67:88:B4:45:FA:D9:24:10:87:96:1F
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
CRL Distribution Points:
Full Name:
URI:http://crl3.digicert.com/CloudflareIncECCCA-3.crl

Full Name:
URI:http://crl4.digicert.com/CloudflareIncECCCA-3.crl

Certificate Policies: Policy: 2.23.140.1.2.2
CPS: http://www.digicert.com/CPS

Authority Information Access: OCSP - URI:http://ocsp.digicert.com
CA Issuers - URI:http://cacerts.digicert.com/CloudflareIncECCCA-3.crt

SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : E8:3E:D0:DA:3E:F5:06:35:32:E7:57:28:BC:89:6B:C9:
03:D3:CB:D1:11:6B:EC:EB:69:E1:77:7D:6D:06:BD:6E
Timestamp : May 11 04:22:29.675 2022 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:21:00:E7:CC:DD:25:C1:84:7E:A3:E9:89:47:
7A:5C:1E:CF:EF:B6:53:55:0D:0D:EB:EE:08:2D:21:6A:
60:C0:4C:94:0F:02:20:0B:32:CF:BD:1B:DC:E2:8E:EA:
C5:6C:64:EE:2D:1F:FA:45:08:BA:46:DE:27:CC:4F:D7:
49:67:D8:A1:F4:65:9B
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 35:CF:19:1B:BF:B1:6C:57:BF:0F:AD:4C:6D:42:CB:BB:
B6:27:20:26:51:EA:3F:E1:2A:EF:A8:03:C3:3B:D6:4C
Timestamp : May 11 04:22:29.727 2022 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:21:00:9D:CF:8A:D4:30:F7:62:B8:56:80:36:
08:A2:95:C1:F3:55:51:25:59:8F:55:4D:1F:C1:42:FD:
53:C7:9B:A0:C3:02:20:1B:B7:A7:34:3D:B2:66:1B:24:
21:24:0C:7A:71:AA:03:5A:F3:A1:80:E0:35:CD:ED:79:
27:88:97:C8:05:B3:6B
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : B7:3E:FB:24:DF:9C:4D:BA:75:F2:39:C5:BA:58:F4:6C:
5D:FC:42:CF:7A:9F:35:C4:9E:1D:09:81:25:ED:B4:99
Timestamp : May 11 04:22:29.713 2022 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:21:00:DD:20:99:53:0B:30:42:97:9A:D6:CF:
BB:D9:8F:B5:DC:5C:42:C7:C0:26:C1:DA:A3:06:02:DC:
10:E0:B8:9B:0F:02:20:76:B3:18:92:D1:B8:85:5E:97:
AF:38:AE:4F:C8:18:A1:69:04:B6:B1:1D:BE:9C:B0:86:
5A:AB:B0:09:4F:73:FA
Key Usage: Digital Signature
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:*.dl4all.org
DNS:dl4all.org
DNS:sni.cloudflaressl.com
Technical

DNS Lookup

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Date: 29th August, 2022
Content-Type: text/html; charset=utf-8
Expires: 19th November, 1981
Cache-Control: no-store, no-cache, must-revalidate
Server: cloudflare
Connection: keep-alive
X-Powered-By: PHP/7.3.29
Set-Cookie: *
Pragma: no-cache
X-Frame-Options: SAMEORIGIN
CF-Cache-Status: DYNAMIC
Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=tcsR0%2B%2BUnOFSg%2BFSYy1wNMigVw3%2BpAMQ3enWHT2QDdL6R%2BAH7zZcYy3pcWgADFpANrKsaZ%2F6Ch5SkqZyVFt0xMKboGdrOzMNKoi%2FYV6vSOuez9bEYyRUQ2oKOYD2"}],"group":"cf-nel","max_age":604800}
NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
CF-RAY: 7428c553ea2c1962-EWR
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400

Whois Lookup

Created: 9th November, 2015
Changed: 9th October, 2021
Expires: 9th November, 2022
Registrar: NameCheap, Inc.
Status: clientTransferProhibited
Nameservers: neil.ns.cloudflare.com
ulla.ns.cloudflare.com
Owner Name: REDACTED FOR PRIVACY
Owner Organization: Privacy service provided by Withheld for Privacy ehf
Owner Street: REDACTED FOR PRIVACY
Owner Post Code: REDACTED FOR PRIVACY
Owner City: REDACTED FOR PRIVACY
Owner State: Capital Region
Owner Country: IS
Owner Phone: REDACTED FOR PRIVACY
Owner Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin Post Code: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech Post Code: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Full Whois: Domain Name: dl4all.org
Registry Domain ID: 3605dfaecc0246a083e10d46823d36a6-LROR
Registrar WHOIS Server: whois.namecheap.com
Registrar URL: http://www.namecheap.com
Updated Date: 2021-09-10T11:14:09Z
Creation Date: 2015-09-11T04:30:18Z
Registry Expiry Date: 2022-09-11T04:30:18Z
Registrar: NameCheap, Inc.
Registrar IANA ID: 1068
Registrar Abuse Contact Email: abuse@namecheap.com
Registrar Abuse Contact Phone: +1.6613102107
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Privacy service provided by Withheld for Privacy ehf
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: Capital Region
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: IS
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: neil.ns.cloudflare.com
Name Server: ulla.ns.cloudflare.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2022-08-29T22:37:25Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

Terms of Use: Access to Public Interest Registry WHOIS information is provided to assist persons in determining the contents of a domain name registration record in the Public Interest Registry registry database. The data in this record is provided by Public Interest Registry for informational purposes only, and Public Interest Registry does not guarantee its accuracy. This service is intended only for query-based access. You agree that you will use this data only for lawful purposes and that, under no circumstances will you use this data to (a) allow, enable, or otherwise support the transmission by e-mail, telephone, or facsimile of mass unsolicited, commercial advertising or solicitations to entities other than the data recipient's own existing customers; or (b) enable high volume, automated, electronic processes that send queries or data to the systems of Registry Operator, a Registrar, or Donuts except as reasonably necessary to register domain names or modify existing registrations. All rights reserved. Public Interest Registry reserves the right to modify these terms at any time. By submitting this query, you agree to abide by this policy. The Registrar of Record identified in this output may have an RDDS service that can be queried for additional information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.

Nameservers

Name IP Address
neil.ns.cloudflare.com 108.162.193.211
ulla.ns.cloudflare.com 172.64.32.233
Related

Subdomains

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Organic Search (US) Competitors

Backlink Competitors

Sites with the same domain name

Domain Valuation Snoop Score
0/5
0/5
$12,087 USD 3/5
$85 USD

Sites hosted on the same IP address

Domain Valuation Snoop Score
$997 USD 1/5
$65,617 USD 3/5