Tools & Wizards About Us
ylandais-chemistry.info screenshot

Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

ylandais-chemistry.info

Prof. Yannick Landais Research Group - University Of Bordeaux

Page Load Speed

8.3 sec in total

First Response

2.8 sec

Resources Loaded

5.1 sec

Page Rendered

396 ms

ylandais-chemistry.info screenshot

About Website

Welcome to ylandais-chemistry.info homepage info - get ready to check Y Landais Chemistry best content for France right away, or after learning these important things about ylandais-chemistry.info

The organic chemistry group of Prof. Yannick Landais is a part of the Institute of Molecular Sciences (ISM) at the University of Bordeaux (France).

Visit ylandais-chemistry.info

Key Findings

We analyzed Ylandais-chemistry.info page load time and found that the first response time was 2.8 sec and then it took 5.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

ylandais-chemistry.info performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value22.2 s

0/100

25%

SI (Speed Index)

Value18.1 s

0/100

10%

TBT (Total Blocking Time)

Value620 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value2.291

0/100

15%

TTI (Time to Interactive)

Value22.9 s

1/100

10%

Network Requests Diagram

ylandais-chemistry.info

2814 ms

js

15 ms

sdm_wp_styles.css

299 ms

style.min.css

523 ms

all.min.css

513 ms

Our browser made a total of 91 requests to load all elements on the main page. We found that 93% of them (85 requests) were addressed to the original Ylandais-chemistry.info, 2% (2 requests) were made to Googletagmanager.com and 1% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Ylandais-chemistry.info.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.7 MB (53%)

Content Size

3.2 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ylandais-chemistry.info main page is 3.2 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. 40% of websites need less resources to load. Javascripts take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 99.1 kB

  • Original 125.9 kB
  • After minification 122.7 kB
  • After compression 26.8 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 99.1 kB or 79% of the original size.

Image Optimization

-3%

Potential reduce by 22.2 kB

  • Original 780.1 kB
  • After minification 758.0 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. Y Landais Chemistry images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 903.9 kB

  • Original 1.5 MB
  • After minification 1.5 MB
  • After compression 613.1 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 903.9 kB or 60% of the original size.

CSS Optimization

-85%

Potential reduce by 664.2 kB

  • Original 781.6 kB
  • After minification 708.8 kB
  • After compression 117.4 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. Ylandais-chemistry.info needs all CSS files to be minified and compressed as it can save up to 664.2 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 69 (83%)

Requests Now

83

After Optimization

14

  • Images
  • JavaScript
  • CSS

The browser has sent 83 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Y Landais Chemistry. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 43 to 1 for JavaScripts and from 28 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ylandais-chemistry.info

ylandais-chemistry.info

2814 ms

js

js

15 ms

sdm_wp_styles.css

sdm_wp_styles.css

299 ms

style.min.css

style.min.css

523 ms

all.min.css

all.min.css

513 ms

bootstrap.min.css

bootstrap.min.css

436 ms

front.css

front.css

455 ms

foogallery.min.css

foogallery.min.css

419 ms

style.css

style.css

640 ms

font-awesome.min.css

font-awesome.min.css

543 ms

animate.min.css

animate.min.css

600 ms

flexslider.css

flexslider.css

561 ms

style.css

style.css

618 ms

app.css

app.css

634 ms

masterslider.main.css

masterslider.main.css

684 ms

custom.css

custom.css

676 ms

frontend-gtag.min.js

frontend-gtag.min.js

793 ms

jquery.min.js

jquery.min.js

837 ms

jquery-migrate.min.js

jquery-migrate.min.js

755 ms

popper.min.js

popper.min.js

797 ms

bootstrap.min.js

bootstrap.min.js

885 ms

front.js

front.js

806 ms

sdm_wp_scripts.js

sdm_wp_scripts.js

923 ms

keyboard-image-navigation.js

keyboard-image-navigation.js

907 ms

Inview.js

Inview.js

917 ms

animate.js

animate.js

944 ms

jquery.flexslider-min.js

jquery.flexslider-min.js

974 ms

flexslider-init.js

flexslider-init.js

989 ms

css

css

34 ms

in.js

in.js

14 ms

js

js

64 ms

envira.css

envira.css

952 ms

responsivelyLazy.css

responsivelyLazy.css

950 ms

fancybox.css

fancybox.css

983 ms

justifiedGallery.css

justifiedGallery.css

983 ms

font-awesome.min.css

font-awesome.min.css

1032 ms

fa-5to4.css

fa-5to4.css

1033 ms

common.css

common.css

1064 ms

js

js

74 ms

remodal.css

remodal.css

1056 ms

remodal-default-theme.css

remodal-default-theme.css

864 ms

jquery.dataTables.min.css

jquery.dataTables.min.css

774 ms

legacy.css

legacy.css

805 ms

hooks.min.js

hooks.min.js

787 ms

i18n.min.js

i18n.min.js

812 ms

jquery.form.min.js

jquery.form.min.js

774 ms

small-menu.js

small-menu.js

752 ms

smoothscroll.js

smoothscroll.js

757 ms

jquery.easing.min.js

jquery.easing.min.js

786 ms

masterslider.min.js

masterslider.min.js

856 ms

foogallery.min.js

foogallery.min.js

835 ms

imagesloaded.min.js

imagesloaded.min.js

751 ms

masonry.min.js

masonry.min.js

761 ms

jquery.masonry.min.js

jquery.masonry.min.js

729 ms

envira-min.js

envira-min.js

870 ms

wpgmza_data.js

wpgmza_data.js

739 ms

jquery.dataTables.min.js

jquery.dataTables.min.js

768 ms

dataTables.responsive.js

dataTables.responsive.js

747 ms

jquery-cookie.js

jquery-cookie.js

763 ms

remodal.min.js

remodal.min.js

722 ms

pep.js

pep.js

773 ms

text.js

text.js

766 ms

pako_deflate.min.js

pako_deflate.min.js

781 ms

wp-google-maps.min.js

wp-google-maps.min.js

1045 ms

lib.core.js

lib.core.js

754 ms

lib.view.js

lib.view.js

752 ms

client.js

client.js

805 ms

client.js

client.js

740 ms

tag.item.js

tag.item.js

737 ms

tag.ui.js

tag.ui.js

748 ms

handler.image.js

handler.image.js

725 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

962 ms

fa-v4compatibility.ttf

fa-v4compatibility.ttf

791 ms

fa-regular-400.ttf

fa-regular-400.ttf

805 ms

fa-brands-400.ttf

fa-brands-400.ttf

874 ms

fa-solid-900.ttf

fa-solid-900.ttf

972 ms

opensans-regular-webfont.woff

opensans-regular-webfont.woff

893 ms

blank.gif

blank.gif

874 ms

DSC01983-683x1024-640x480.jpg

DSC01983-683x1024-640x480.jpg

873 ms

DSC01989-1024x683-640x480.jpg

DSC01989-1024x683-640x480.jpg

940 ms

Universite-Bordeaux-RVB-01_HD.jpg

Universite-Bordeaux-RVB-01_HD.jpg

1109 ms

cnrs-e1504341076848.jpg

cnrs-e1504341076848.jpg

893 ms

search.png

search.png

879 ms

icons.svg

icons.svg

906 ms

top_button.png

top_button.png

896 ms

style.css

style.css

274 ms

style.css

style.css

283 ms

loading-2.gif

loading-2.gif

280 ms

light-skin-3.png

light-skin-3.png

280 ms

Photocatalysis_Org-Lett-2018.jpg

Photocatalysis_Org-Lett-2018.jpg

319 ms

sprite_connect_v14.png

sprite_connect_v14.png

14 ms

Accessibility Review

ylandais-chemistry.info accessibility score

85

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

button, link, and menuitem elements do not have accessible names.

High

[role] values are not valid

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.

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

ylandais-chemistry.info best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

ylandais-chemistry.info SEO score

93

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ylandais-chemistry.info can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Ylandais-chemistry.info 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

ylandais-chemistry.info

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