Report Summary

  • 96

    Performance

    Renders faster than
    94% of other websites

  • 60

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    34% of websites

  • 58

    SEO

    Google-friendlier than
    30% of websites

Page Load Speed

1.2 sec in total

First Response

293 ms

Resources Loaded

784 ms

Page Rendered

135 ms

graal.ens-lyon.fr screenshot

About Website

Visit graal.ens-lyon.fr now to see the best up-to-date GRAAL Ens Lyon content for France and also check out these interesting facts you probably never knew about graal.ens-lyon.fr

Visit graal.ens-lyon.fr

Key Findings

We analyzed Graal.ens-lyon.fr page load time and found that the first response time was 293 ms and then it took 919 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

graal.ens-lyon.fr performance score

96

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.1 s

100/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

85/100

25%

SI (Speed Index)

Value2.0 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.031

100/100

15%

TTI (Time to Interactive)

Value1.1 s

100/100

10%

Network Requests Diagram

graal.ens-lyon.fr

293 ms

menu.html

101 ms

home.html

195 ms

styles.css

100 ms

mini_logo_GRAAL.gif

192 ms

Our browser made a total of 10 requests to load all elements on the main page. We found that all of those requests were addressed to Graal.ens-lyon.fr and no external sources were called. The less responsive or slowest element that took the longest time to load (293 ms) belongs to the original domain Graal.ens-lyon.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 26.8 kB (57%)

Content Size

47.3 kB

After Optimization

20.5 kB

In fact, the total size of Graal.ens-lyon.fr main page is 47.3 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 46.1 kB which makes up the majority of the site volume.

HTML Optimization

-37%

Potential reduce by 113 B

  • Original 307 B
  • After minification 292 B
  • After compression 194 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 113 B or 37% of the original size.

Image Optimization

-56%

Potential reduce by 25.9 kB

  • Original 46.1 kB
  • After minification 20.2 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, GRAAL Ens Lyon needs image optimization as it can save up to 25.9 kB or 56% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-81%

Potential reduce by 747 B

  • Original 919 B
  • After minification 768 B
  • After compression 172 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. Graal.ens-lyon.fr needs all CSS files to be minified and compressed as it can save up to 747 B or 81% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of GRAAL Ens Lyon. According to our analytics all requests are already optimized.

Accessibility Review

graal.ens-lyon.fr accessibility score

60

Accessibility Issues

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

graal.ens-lyon.fr best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

graal.ens-lyon.fr SEO score

58

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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Graal.ens-lyon.fr can be misinterpreted by Google and other search engines. Our service has detected that English 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 Graal.ens-lyon.fr main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of GRAAL Ens Lyon. 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: