Access elsevier.fr. Elsevier | Une entreprise d'analyse de données

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

22/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value4.9 s

65/100

10%

TBT (Total Blocking Time)

Value340 ms

74/100

30%

CLS (Cumulative Layout Shift)

Value0.93

3/100

15%

TTI (Time to Interactive)

Value7.5 s

48/100

10%

elsevier.fr

277 ms

www.elsevier-masson.fr

403 ms

560151489.js

37 ms

fonts.css

164 ms

ld.js

25 ms

Our browser made a total of 109 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Elsevier.fr, 77% (84 requests) were made to Media.elsevier-masson.fr and 5% (5 requests) were made to Elsevier-masson.fr. The less responsive or slowest element that took the longest time to load (834 ms) relates to the external source Jsfiles.affinityitems.com.

Content Size

3.0 MB

After Optimization

1.2 MB

In fact, the total size of Elsevier.fr main page is 3.0 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. 70% of websites need less resources to load. Javascripts take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 273.3 kB

Original 302.5 kB
After minification 251.8 kB
After compression 29.2 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 50.8 kB, which is 17% 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 273.3 kB or 90% of the original size.

Image Optimization

-7%

Potential reduce by 59.8 kB

Original 841.3 kB
After minification 781.4 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. Elsevier images are well optimized though.

JavaScript Optimization

-76%

Potential reduce by 1.0 MB

Original 1.3 MB
After minification 1.2 MB
After compression 321.5 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 1.0 MB or 76% of the original size.

CSS Optimization

-88%

Potential reduce by 463.7 kB

Original 526.7 kB
After minification 408.1 kB
After compression 63.0 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. Elsevier.fr needs all CSS files to be minified and compressed as it can save up to 463.7 kB or 88% of the original size.

Requests Now

101

After Optimization

The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Elsevier. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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.

High

[aria-*] attributes do not match their roles

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

FR
Language Claimed

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Elsevier.fr can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it does not match the claimed English language. Our system also found out that Elsevier.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

elsevier.fr

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Elsevier | Une entreprise d'analyse de données | Empowering Knowledge

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

elsevier.fr

www.elsevier-masson.fr

560151489.js

fonts.css

ld.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

elsevier.fr

www.elsevier-masson.fr

560151489.js

fonts.css

ld.js

8dc9f630312efc8ff0062b1fe8d41218.css

565a361c9ab24e36faac34ba77226500.js

08aab66ce3bc7d138b60b1093f99e6fe.css

event

prum.min.js

logo.png

HOME--banner.jpg

small_9782294750007.jpg

small_9782294750298.jpg

small_9782294748912.jpg

small_9782294744600.jpg

small_9782294747779_1.gif

small_9782294744488.jpg

small_9782294743757_1.jpg

small_9782294744648.gif

small_9782294745218.gif

big_9782294749049.gif

473971.jpg

474187.jpg

big_9782294739637_1.jpg

small-9782294744587.jpg

small_9782294739293.jpg

big-9782294743542.jpg

474216.jpg

small-netter.jpg

9782294725081.jpg

ZBB.jpg

839.jpg

560.jpg

PEZAT.jpg

small_cover_mpe_1.gif

PE441.jpg

PEZIR.jpg

papier_plus_sans_bandeau_40.jpg

papier_plus_sans_bandeau_49.jpg

web_sans_bandeau_20.jpg

web_sans_bandeau_4_2.jpg

papier_plus_sans_bandeau_46.jpg