Tools & Wizards About Us
dlang.org screenshot

Report Summary

  • 74

    Performance

    Renders faster than
    84% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

dlang.org

Home - D Programming Language

Page Load Speed

1.6 sec in total

First Response

37 ms

Resources Loaded

1.4 sec

Page Rendered

246 ms

dlang.org screenshot

About Website

Click here to check amazing Dlang content for Serbia. Otherwise, check out these important facts you probably never knew about dlang.org

D is a general-purpose programming language with static typing, systems-level access, and C-like syntax.

Visit dlang.org

Key Findings

We analyzed Dlang.org page load time and found that the first response time was 37 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

dlang.org performance score

74

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

78/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

45/100

25%

SI (Speed Index)

Value2.2 s

99/100

10%

TBT (Total Blocking Time)

Value260 ms

83/100

30%

CLS (Cumulative Layout Shift)

Value0.044

99/100

15%

TTI (Time to Interactive)

Value6.9 s

54/100

10%

Network Requests Diagram

dlang.org

37 ms

codemirror.css

28 ms

style.css

35 ms

jquery.min.js

72 ms

dlang.js

33 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 15% of them (9 requests) were addressed to the original Dlang.org, 24% (14 requests) were made to Pbs.twimg.com and 24% (14 requests) were made to Gravatar.com. The less responsive or slowest element that took the longest time to load (788 ms) relates to the external source Forum.dlang.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 314.4 kB (65%)

Content Size

485.6 kB

After Optimization

171.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dlang.org main page is 485.6 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 40% of websites need less resources to load. Javascripts take 197.7 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 63.2 kB

  • Original 72.7 kB
  • After minification 71.0 kB
  • After compression 9.5 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 63.2 kB or 87% of the original size.

Image Optimization

-32%

Potential reduce by 36.1 kB

  • Original 113.0 kB
  • After minification 77.0 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Dlang needs image optimization as it can save up to 36.1 kB or 32% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 134.1 kB

  • Original 197.7 kB
  • After minification 188.0 kB
  • After compression 63.6 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 134.1 kB or 68% of the original size.

CSS Optimization

-79%

Potential reduce by 81.1 kB

  • Original 102.2 kB
  • After minification 88.1 kB
  • After compression 21.1 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Dlang.org needs all CSS files to be minified and compressed as it can save up to 81.1 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (31%)

Requests Now

54

After Optimization

37

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dlang. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dlang.org

dlang.org

37 ms

codemirror.css

codemirror.css

28 ms

style.css

style.css

35 ms

jquery.min.js

jquery.min.js

72 ms

dlang.js

dlang.js

33 ms

codemirror-compressed.js

codemirror-compressed.js

49 ms

run.js

run.js

32 ms

run-main-website.js

run-main-website.js

32 ms

twid-latest.js

twid-latest.js

148 ms

font-awesome.min.css

font-awesome.min.css

41 ms

css

css

56 ms

print.css

print.css

9 ms

dlogo.svg

dlogo.svg

40 ms

frame-announcements

frame-announcements

706 ms

frame-discussions

frame-discussions

788 ms

widgets.js

widgets.js

28 ms

y7lebkjgREBJK96VQi37Zp0EAVxt0G0biEntp43Qt6E.ttf

y7lebkjgREBJK96VQi37Zp0EAVxt0G0biEntp43Qt6E.ttf

259 ms

dazS1PrQQuCxC3iOAJFEJbfB31yxOzP-czbf6AAKCVo.ttf

dazS1PrQQuCxC3iOAJFEJbfB31yxOzP-czbf6AAKCVo.ttf

303 ms

dazS1PrQQuCxC3iOAJFEJZ_TkvowlIOtbR7ePgFOpF4.ttf

dazS1PrQQuCxC3iOAJFEJZ_TkvowlIOtbR7ePgFOpF4.ttf

303 ms

timeline.1b43d11859b7663a2225b885f87704a5.js

timeline.1b43d11859b7663a2225b885f87704a5.js

54 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

26 ms

syndication

syndication

86 ms

684452777939058688

684452777939058688

254 ms

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

3 ms

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

5 ms

ti7QUQwq_normal.jpg

ti7QUQwq_normal.jpg

161 ms

gHYFsZ4g_normal.png

gHYFsZ4g_normal.png

189 ms

indian-bison-gaur_normal.jpg

indian-bison-gaur_normal.jpg

222 ms

d9EYkQRR_normal.jpg

d9EYkQRR_normal.jpg

253 ms

NlaWytnT_normal.png

NlaWytnT_normal.png

314 ms

-JOpaDyR_normal.png

-JOpaDyR_normal.png

313 ms

01d842a2a06ea75994d51c5df7f1305b_normal.png

01d842a2a06ea75994d51c5df7f1305b_normal.png

314 ms

test_normal.jpg

test_normal.jpg

315 ms

l_9sNpMM_normal.jpeg

l_9sNpMM_normal.jpeg

317 ms

k-tzpatP_normal.jpg

k-tzpatP_normal.jpg

317 ms

wSXguANQ_normal.jpg

wSXguANQ_normal.jpg

318 ms

result__normal.jpg

result__normal.jpg

317 ms

-y5LjiW0_normal.png

-y5LjiW0_normal.png

319 ms

b33b478a71f03795157c51e0ecebff6e_normal.jpeg

b33b478a71f03795157c51e0ecebff6e_normal.jpeg

317 ms

dfeed.css

dfeed.css

170 ms

dfeed.js

dfeed.js

254 ms

jot

jot

62 ms

be788e1f911b17990aca4b2690085ba5

be788e1f911b17990aca4b2690085ba5

130 ms

4d2b181af01c96927ac05eb864d6b7b6

4d2b181af01c96927ac05eb864d6b7b6

141 ms

9a5fe7b0ce6bfe6486956d8f21f743a0

9a5fe7b0ce6bfe6486956d8f21f743a0

168 ms

29d407b5327d02a46d222c1f85e663fa

29d407b5327d02a46d222c1f85e663fa

196 ms

b95cfe9551a4732a017a507387bd893c

b95cfe9551a4732a017a507387bd893c

199 ms

eb047e25e9735c6ce940852411575198

eb047e25e9735c6ce940852411575198

226 ms

2dd69ef692305b23523ac6b6a520aa93

2dd69ef692305b23523ac6b6a520aa93

227 ms

58c58cdc5b9e7433ddb3472052710b46

58c58cdc5b9e7433ddb3472052710b46

230 ms

2ccd8875b31d97eb11c827035c6250d9

2ccd8875b31d97eb11c827035c6250d9

231 ms

0f32a67e4c3480637ddf2b42f73bf050

0f32a67e4c3480637ddf2b42f73bf050

246 ms

7c508e5db8c4b2c28718f7882bb5e3b9

7c508e5db8c4b2c28718f7882bb5e3b9

247 ms

12afde220e4ce94ad89f6598f7686f32

12afde220e4ce94ad89f6598f7686f32

251 ms

a23e0ce5bcfb7dbeb82d6004b20d184b

a23e0ce5bcfb7dbeb82d6004b20d184b

249 ms

07fa101e259a81d072e61abaa4caba5a

07fa101e259a81d072e61abaa4caba5a

251 ms

dlogo.svg

dlogo.svg

180 ms

rss.png

rss.png

220 ms

print.css

print.css

88 ms

Accessibility Review

dlang.org accessibility score

80

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

dlang.org best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

dlang.org SEO score

83

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dlang.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Dlang.org main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

dlang.org

Open Graph description is not detected on the main page of Dlang. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: