Tools & Wizards About Us

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

bertin.fr

Accueil - Bertin Technologies

Page Load Speed

3.8 sec in total

First Response

128 ms

Resources Loaded

3.3 sec

Page Rendered

435 ms

About Website

Click here to check amazing Bertin content for France. Otherwise, check out these important facts you probably never knew about bertin.fr

Solutions de mesure et d’échantillonnage de pointe Chaque jour, la société poursuit les avancées technologiques dans les domaines du Nucléaire, de la Défense, du Spatial, des Grands Instruments Scient...

Visit bertin.fr

Key Findings

We analyzed Bertin.fr page load time and found that the first response time was 128 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

bertin.fr performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

7/100

10%

LCP (Largest Contentful Paint)

Value14.2 s

0/100

25%

SI (Speed Index)

Value13.3 s

2/100

10%

TBT (Total Blocking Time)

Value5,490 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value28.3 s

0/100

10%

Network Requests Diagram

bertin.fr

128 ms

www.bertin-technologies.fr

521 ms

uc.js

31 ms

dashicons.min.css

169 ms

screen.css

411 ms

Our browser made a total of 113 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Bertin.fr, 73% (82 requests) were made to Bertin-technologies.fr and 5% (6 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source Bertin-technologies.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 602.6 kB (24%)

Content Size

2.5 MB

After Optimization

1.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bertin.fr main page is 2.5 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only a small number of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 251.1 kB

  • Original 292.4 kB
  • After minification 263.1 kB
  • After compression 41.3 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 251.1 kB or 86% of the original size.

Image Optimization

-1%

Potential reduce by 7.9 kB

  • Original 1.3 MB
  • After minification 1.3 MB

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. Bertin images are well optimized though.

JavaScript Optimization

-42%

Potential reduce by 343.5 kB

  • Original 825.6 kB
  • After minification 825.5 kB
  • After compression 482.0 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 343.5 kB or 42% of the original size.

CSS Optimization

-0%

Potential reduce by 15 B

  • Original 60.6 kB
  • After minification 60.6 kB
  • After compression 60.6 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. Bertin.fr has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 57 (57%)

Requests Now

100

After Optimization

43

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 100 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bertin. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

bertin.fr accessibility score

73

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-*] attributes do not match their roles

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

bertin.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

bertin.fr SEO score

71

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

Content Best Practices

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

Impact

Issue

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

Language and Encoding

  • Language Detected

    FR

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bertin.fr can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Bertin.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

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