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devlab.fr screenshot

Report Summary

  • 75

    Performance

    Renders faster than
    83% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 80

    SEO

    Google-friendlier than
    42% of websites

devlab.fr

Bienvenue à DEVLAB

Page Load Speed

2.4 sec in total

First Response

431 ms

Resources Loaded

1.8 sec

Page Rendered

167 ms

devlab.fr screenshot

About Website

Visit devlab.fr now to see the best up-to-date DEVLAB content and also check out these interesting facts you probably never knew about devlab.fr

DEVLAB est une société de conseil informatique basée à Paris, qui utilise des solutions technologiques uniques pour les PME.

Visit devlab.fr

Key Findings

We analyzed Devlab.fr page load time and found that the first response time was 431 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

devlab.fr performance score

75

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

37/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

54/100

25%

SI (Speed Index)

Value4.5 s

73/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.148

76/100

15%

TTI (Time to Interactive)

Value3.7 s

90/100

10%

Network Requests Diagram

www.devlab.fr

431 ms

layout.css

107 ms

web.css

235 ms

common,shoppingbasket

232 ms

logstate2-css.php

492 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 35% of them (9 requests) were addressed to the original Devlab.fr, 35% (9 requests) were made to Cdn.website-start.de and 12% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (594 ms) relates to the external source Cdn.website-start.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 166.1 kB (43%)

Content Size

382.5 kB

After Optimization

216.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Devlab.fr main page is 382.5 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. 30% of websites need less resources to load. Images take 204.7 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 15.9 kB

  • Original 21.8 kB
  • After minification 20.4 kB
  • After compression 5.9 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 15.9 kB or 73% of the original size.

Image Optimization

-8%

Potential reduce by 17.0 kB

  • Original 204.7 kB
  • After minification 187.7 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. DEVLAB images are well optimized though.

JavaScript Optimization

-86%

Potential reduce by 126.9 kB

  • Original 148.0 kB
  • After minification 68.8 kB
  • After compression 21.1 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 126.9 kB or 86% of the original size.

CSS Optimization

-79%

Potential reduce by 6.3 kB

  • Original 7.9 kB
  • After minification 5.5 kB
  • After compression 1.6 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. Devlab.fr needs all CSS files to be minified and compressed as it can save up to 6.3 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (55%)

Requests Now

22

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DEVLAB. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.devlab.fr

www.devlab.fr

431 ms

layout.css

layout.css

107 ms

web.css

web.css

235 ms

common,shoppingbasket

common,shoppingbasket

232 ms

logstate2-css.php

logstate2-css.php

492 ms

logstate-js.php

logstate-js.php

494 ms

web.js

web.js

594 ms

web.bundle.js

web.bundle.js

217 ms

common,shoppingbasket

common,shoppingbasket

369 ms

412 ms

pfcsupport.js

pfcsupport.js

369 ms

8214.js

8214.js

269 ms

css

css

25 ms

css

css

38 ms

print.css

print.css

150 ms

ornament.png

ornament.png

417 ms

emotionheader.jpg

emotionheader.jpg

204 ms

printer.gif

printer.gif

95 ms

cache_186143.jpg

cache_186143.jpg

321 ms

logo.gif

logo.gif

113 ms

7XUFZ5tgS-tD6QamInJTcZ_o9VAbKgK36i-4snuAuCM.woff

7XUFZ5tgS-tD6QamInJTcZ_o9VAbKgK36i-4snuAuCM.woff

10 ms

anMUvcNT0H1YN4FII8wpr_5rZpfU3XI-FvUPGDRT0xY.woff

anMUvcNT0H1YN4FII8wpr_5rZpfU3XI-FvUPGDRT0xY.woff

11 ms

button_back.jpg

button_back.jpg

196 ms

button_active_back.jpg

button_active_back.jpg

213 ms

image01.png

image01.png

225 ms

zhbx7NQl8ktGP8FS60Z_oQLUuEpTyoUstqEm5AMlJo4.woff

zhbx7NQl8ktGP8FS60Z_oQLUuEpTyoUstqEm5AMlJo4.woff

4 ms

Accessibility Review

devlab.fr accessibility score

74

Accessibility Issues

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

devlab.fr best practices score

75

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

devlab.fr SEO score

80

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

High

robots.txt is not valid

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

    FR

  • Language Claimed

    FR

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Devlab.fr can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it matches the claimed language. Our system also found out that Devlab.fr 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

devlab.fr

Open Graph data is detected on the main page of DEVLAB. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: