Tools & Wizards About Us
lea.nathan.fr screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

lea.nathan.fr

Lea.fr. Rejoignez le Réseau pédagogique et collaboratif pour les enseignants de l'école primaire.

Page Load Speed

5 sec in total

First Response

268 ms

Resources Loaded

4 sec

Page Rendered

737 ms

lea.nathan.fr screenshot

About Website

Click here to check amazing Lea Nathan content for France. Otherwise, check out these important facts you probably never knew about lea.nathan.fr

Actualités de l'éducation, ressources et fiches pédagogiques maternelle et élémentaire, modules de formation, conseils étudiants, communauté pédagogique

Visit lea.nathan.fr

Key Findings

We analyzed Lea.nathan.fr page load time and found that the first response time was 268 ms and then it took 4.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

lea.nathan.fr performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value24.5 s

0/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value2,330 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.016

100/100

15%

TTI (Time to Interactive)

Value20.8 s

2/100

10%

Network Requests Diagram

lea.nathan.fr

268 ms

lea.fr

1708 ms

loader.js

542 ms

gtm.js

90 ms

css2

52 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Lea.nathan.fr, 77% (46 requests) were made to Lea.fr and 5% (3 requests) were made to Sdk.privacy-center.org. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Lea.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 446.9 kB (14%)

Content Size

3.3 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lea.nathan.fr main page is 3.3 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. 60% of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 62.0 kB

  • Original 74.6 kB
  • After minification 55.9 kB
  • After compression 12.7 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. This page needs HTML code to be minified as it can gain 18.7 kB, which is 25% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 62.0 kB or 83% of the original size.

Image Optimization

-9%

Potential reduce by 274.7 kB

  • Original 2.9 MB
  • After minification 2.6 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. Lea Nathan images are well optimized though.

JavaScript Optimization

-36%

Potential reduce by 74.8 kB

  • Original 206.3 kB
  • After minification 206.3 kB
  • After compression 131.5 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 74.8 kB or 36% of the original size.

CSS Optimization

-36%

Potential reduce by 35.5 kB

  • Original 97.8 kB
  • After minification 90.2 kB
  • After compression 62.3 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. Lea.nathan.fr needs all CSS files to be minified and compressed as it can save up to 35.5 kB or 36% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (40%)

Requests Now

57

After Optimization

34

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lea Nathan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lea.nathan.fr

lea.nathan.fr

268 ms

lea.fr

lea.fr

1708 ms

loader.js

loader.js

542 ms

gtm.js

gtm.js

90 ms

css2

css2

52 ms

css_Vts0XjaQXkIwBk9HNAoJwrvmmE9lw6S9oxqJuhh0OB0.css

css_Vts0XjaQXkIwBk9HNAoJwrvmmE9lw6S9oxqJuhh0OB0.css

259 ms

css_dQUmkOHGvhdsk3fw1ClcAv2fBIdCRpG6DXJhEQw3_TE.css

css_dQUmkOHGvhdsk3fw1ClcAv2fBIdCRpG6DXJhEQw3_TE.css

264 ms

css_LWRfVj1pR-4YU3cooAuIpXEs97z6CBlkzJXv7F-g08Y.css

css_LWRfVj1pR-4YU3cooAuIpXEs97z6CBlkzJXv7F-g08Y.css

254 ms

css_NCOSdpoQnWWQHVcfG2o2skDLf8YSjSAlOAadPoELzbo.css

css_NCOSdpoQnWWQHVcfG2o2skDLf8YSjSAlOAadPoELzbo.css

259 ms

css_sPFvWakbfDBrnJ5mEMzvBPJQpKWhfaKjykHe2xoyucc.css

css_sPFvWakbfDBrnJ5mEMzvBPJQpKWhfaKjykHe2xoyucc.css

259 ms

style_tips.css

style_tips.css

525 ms

style_calendar.css

style_calendar.css

700 ms

style_accountManagement.css

style_accountManagement.css

702 ms

css_bK-ggqHkSku0rG6I0KNC611YN8Ot9IpGdkTX_XInxt8.css

css_bK-ggqHkSku0rG6I0KNC611YN8Ot9IpGdkTX_XInxt8.css

381 ms

js_YD9ro0PAqY25gGWrTki6TjRUG8TdokmmxjfqpNNfzVU.js

js_YD9ro0PAqY25gGWrTki6TjRUG8TdokmmxjfqpNNfzVU.js

423 ms

mediaelement-and-player.min.js

mediaelement-and-player.min.js

492 ms

js_oH3SiKqpfP0FPDul4QJvEx4xPHmxUlwk0tmrzVkZVa0.js

js_oH3SiKqpfP0FPDul4QJvEx4xPHmxUlwk0tmrzVkZVa0.js

340 ms

js_wjjEOyuahPx-6UR1ZsgN8lKo5kihoaEifddADoigO6w.js

js_wjjEOyuahPx-6UR1ZsgN8lKo5kihoaEifddADoigO6w.js

340 ms

js_YlX-GorwNhrCgxeimnfbgs9e1dCvtEbxBljloqHQA8Y.js

js_YlX-GorwNhrCgxeimnfbgs9e1dCvtEbxBljloqHQA8Y.js

340 ms

js_4qwRxe4NWg1fGZXIqTHzTo8u5rEq0SugPCXOnfCJUdo.js

js_4qwRxe4NWg1fGZXIqTHzTo8u5rEq0SugPCXOnfCJUdo.js

423 ms

959799136523a26a8bb0841c20c4b743.js

959799136523a26a8bb0841c20c4b743.js

50 ms

asyncjs.php

asyncjs.php

129 ms

js_PIw3l_3bHfv7WCSo-PRLVqbmdijAaYkglt4XU9k8kVM.js

js_PIw3l_3bHfv7WCSo-PRLVqbmdijAaYkglt4XU9k8kVM.js

209 ms

js_lsia6z4DRELyKhyIfpuho6h341QfPkaDCr9sp6RIuA4.js

js_lsia6z4DRELyKhyIfpuho6h341QfPkaDCr9sp6RIuA4.js

479 ms

css

css

41 ms

sdk.fa429a078fa94c27d40660edcf1a73f73358af82.js

sdk.fa429a078fa94c27d40660edcf1a73f73358af82.js

8 ms

icon-pinterest.svg

icon-pinterest.svg

333 ms

icon-boutique.svg

icon-boutique.svg

268 ms

menu-je-minforme.png

menu-je-minforme.png

270 ms

menu-jenseigne.png

menu-jenseigne.png

278 ms

menu-lelab.png

menu-lelab.png

270 ms

icon-enseignant.svg

icon-enseignant.svg

271 ms

menu-enseignant.png

menu-enseignant.png

273 ms

icon-levels.svg

icon-levels.svg

274 ms

sliderhomelea_1.png

sliderhomelea_1.png

1202 ms

petitevignettearticlelea_3.png

petitevignettearticlelea_3.png

566 ms

vignette_formation_metatuteur.png

vignette_formation_metatuteur.png

500 ms

petitevignettearticlelea_2_1.png

petitevignettearticlelea_2_1.png

500 ms

vignette_arnaud_humann.jpg

vignette_arnaud_humann.jpg

276 ms

visuel-banniere.jpg

visuel-banniere.jpg

866 ms

mater.jpg

mater.jpg

475 ms

quote.png

quote.png

559 ms

visuel-communaute.jpg

visuel-communaute.jpg

560 ms

default-user.png

default-user.png

560 ms

picture-110509-1514966361.jpg

picture-110509-1514966361.jpg

638 ms

picture-113344-1511426570.jpg

picture-113344-1511426570.jpg

640 ms

photo_odile_espinoza_web.jpg

photo_odile_espinoza_web.jpg

643 ms

boutique-node-e246c854e992340e22074fa9689d6990-img.png

boutique-node-e246c854e992340e22074fa9689d6990-img.png

641 ms

boutique-node-8ed2530af955adbd21a7ef823f02f855-img.png

boutique-node-8ed2530af955adbd21a7ef823f02f855-img.png

720 ms

boutique-node-17fa0e7bef6f81df9093f19c3da41e9b-img.png

boutique-node-17fa0e7bef6f81df9093f19c3da41e9b-img.png

723 ms

boutique-node-664709dd0131c34fa7702af75607b255-img.png

boutique-node-664709dd0131c34fa7702af75607b255-img.png

724 ms

bic_banc.png

bic_banc.png

727 ms

logo-nathan.png

logo-nathan.png

801 ms

font

font

222 ms

font

font

222 ms

icomoon.ttf

icomoon.ttf

528 ms

menu-maternelle.png

menu-maternelle.png

358 ms

menu-elementaire.png

menu-elementaire.png

437 ms

menu-college.png

menu-college.png

437 ms

ui-gdpr-fr-web.fa429a078fa94c27d40660edcf1a73f73358af82.js

ui-gdpr-fr-web.fa429a078fa94c27d40660edcf1a73f73358af82.js

55 ms

Accessibility Review

lea.nathan.fr accessibility score

72

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-hidden="true"] elements contain focusable descendents

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.

High

[aria-*] attributes do not have valid values

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

Links do not have a discernible name

Best Practices

lea.nathan.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

lea.nathan.fr SEO score

92

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lea.nathan.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 Lea.nathan.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

lea.nathan.fr

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