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jats.fr screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 57

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

jats.fr

[priV] jatsFR

Page Load Speed

1.9 sec in total

First Response

910 ms

Resources Loaded

914 ms

Page Rendered

63 ms

jats.fr screenshot

About Website

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

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Key Findings

We analyzed Jats.fr page load time and found that the first response time was 910 ms and then it took 977 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

jats.fr performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.7 s

100/100

25%

SI (Speed Index)

Value0.8 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.7 s

100/100

10%

Network Requests Diagram

jats.fr

910 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Jats.fr and no external sources were called. The less responsive or slowest element that took the longest time to load (910 ms) belongs to the original domain Jats.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.3 kB (28%)

Content Size

8.5 kB

After Optimization

6.1 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Jats.fr main page is 8.5 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Images take 6.6 kB which makes up the majority of the site volume.

HTML Optimization

-53%

Potential reduce by 351 B

  • Original 657 B
  • After minification 600 B
  • After compression 306 B

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 351 B or 53% of the original size.

Image Optimization

-27%

Potential reduce by 1.8 kB

  • Original 6.6 kB
  • After minification 4.9 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, Jats needs image optimization as it can save up to 1.8 kB or 27% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-19%

Potential reduce by 225 B

  • Original 1.2 kB
  • After minification 1.2 kB
  • After compression 963 B

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. Jats.fr needs all CSS files to be minified and compressed as it can save up to 225 B or 19% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Network Requests Diagram

jats.fr

jats.fr

910 ms

Accessibility Review

jats.fr accessibility score

57

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.

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

Form elements do not have associated labels

Best Practices

jats.fr best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

jats.fr SEO score

67

Search Engine Optimization Advices

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 Jats.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 Jats.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

jats.fr

Open Graph description is not detected on the main page of Jats. 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: