Tools & Wizards About Us
energy.grenoble-em.com screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

energy.grenoble-em.com

Title

Page Load Speed

3.8 sec in total

First Response

849 ms

Resources Loaded

2.6 sec

Page Rendered

381 ms

energy.grenoble-em.com screenshot

About Website

Welcome to energy.grenoble-em.com homepage info - get ready to check Energy Grenoble Em best content for France right away, or after learning these important things about energy.grenoble-em.com

This MOOC explores the new and upcoming energy technologies that may help solve some of the world’s biggest energy challenges.

Visit energy.grenoble-em.com

Key Findings

We analyzed Energy.grenoble-em.com page load time and found that the first response time was 849 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

energy.grenoble-em.com performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value9.1 s

1/100

25%

SI (Speed Index)

Value8.0 s

21/100

10%

TBT (Total Blocking Time)

Value2,200 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.074

95/100

15%

TTI (Time to Interactive)

Value14.7 s

8/100

10%

Network Requests Diagram

energy.grenoble-em.com

849 ms

minified.css.php

264 ms

custom.css

158 ms

font-awesome.css

19 ms

css

23 ms

Our browser made a total of 81 requests to load all elements on the main page. We found that 88% of them (71 requests) were addressed to the original Energy.grenoble-em.com, 2% (2 requests) were made to Netdna.bootstrapcdn.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (976 ms) belongs to the original domain Energy.grenoble-em.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (33%)

Content Size

3.4 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Energy.grenoble-em.com main page is 3.4 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. 50% of websites need less resources to load. Images take 2.0 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 62.2 kB

  • Original 77.6 kB
  • After minification 67.3 kB
  • After compression 15.5 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 10.3 kB, which is 13% 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 62.2 kB or 80% of the original size.

Image Optimization

-3%

Potential reduce by 55.5 kB

  • Original 2.0 MB
  • After minification 1.9 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. Energy Grenoble Em images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 589.7 kB

  • Original 858.9 kB
  • After minification 828.9 kB
  • After compression 269.2 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 589.7 kB or 69% of the original size.

CSS Optimization

-83%

Potential reduce by 405.7 kB

  • Original 488.0 kB
  • After minification 480.8 kB
  • After compression 82.3 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. Energy.grenoble-em.com needs all CSS files to be minified and compressed as it can save up to 405.7 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (34%)

Requests Now

79

After Optimization

52

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Energy Grenoble Em. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

energy.grenoble-em.com

energy.grenoble-em.com

849 ms

minified.css.php

minified.css.php

264 ms

custom.css

custom.css

158 ms

font-awesome.css

font-awesome.css

19 ms

css

css

23 ms

module_custom.css

module_custom.css

153 ms

nsb-opac.css

nsb-opac.css

161 ms

gallery.css

gallery.css

161 ms

jquery.min.js

jquery.min.js

287 ms

jquery-noconflict.js

jquery-noconflict.js

229 ms

jquery-migrate.min.js

jquery-migrate.min.js

230 ms

bootstrap.min.js

bootstrap.min.js

241 ms

acymailing_module.js

acymailing_module.js

240 ms

mootools-core.js

mootools-core.js

391 ms

core.js

core.js

308 ms

mootools-more.js

mootools-more.js

571 ms

caption.js

caption.js

320 ms

jquery.scripts.js

jquery.scripts.js

337 ms

jquery.inview.js

jquery.inview.js

365 ms

jquery.lavalamp-1.3.5.min.js

jquery.lavalamp-1.3.5.min.js

385 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

409 ms

jquery.magnific-popup.min.js

jquery.magnific-popup.min.js

420 ms

jquery.carousel.min.js

jquery.carousel.min.js

445 ms

jquery.tipsy.js

jquery.tipsy.js

463 ms

jquery.flexslider.min.js

jquery.flexslider.min.js

466 ms

bandeau-gem-enery.png

bandeau-gem-enery.png

107 ms

slide-energy2.png

slide-energy2.png

395 ms

facebook_iph_32.png

facebook_iph_32.png

108 ms

twitter_iph_32.png

twitter_iph_32.png

108 ms

linkedin_iph_32.png

linkedin_iph_32.png

106 ms

footer_email.png

footer_email.png

247 ms

mooc_new_energy_technologies.png

mooc_new_energy_technologies.png

266 ms

1-cateura.png

1-cateura.png

336 ms

linkedin.png

linkedin.png

177 ms

2-schleich.png

2-schleich.png

256 ms

3-olsthoorn.png

3-olsthoorn.png

414 ms

MOLECKE.png

MOLECKE.png

409 ms

15-malbranche.png

15-malbranche.png

416 ms

16-bes.png

16-bes.png

426 ms

17-lemaignan.png

17-lemaignan.png

489 ms

twitter.png

twitter.png

473 ms

18-grover.png

18-grover.png

569 ms

13-arroyo.png

13-arroyo.png

653 ms

19-fallot.png

19-fallot.png

577 ms

Bernard_BRUSA_PASQUE.png

Bernard_BRUSA_PASQUE.png

590 ms

11-mazzouji.png

11-mazzouji.png

631 ms

12-teller.png

12-teller.png

648 ms

Aziz_OUAABI.png

Aziz_OUAABI.png

731 ms

image006.jpg

image006.jpg

660 ms

VERNAY.png

VERNAY.png

756 ms

siteweb.png

siteweb.png

710 ms

4-lefevre.png

4-lefevre.png

805 ms

5-moletta.png

5-moletta.png

816 ms

6-cadic.png

6-cadic.png

819 ms

7-garnaud.png

7-garnaud.png

866 ms

8-borroni.png

8-borroni.png

890 ms

9-milcent.png

9-milcent.png

920 ms

bultel2.png

bultel2.png

886 ms

21-barbier.png

21-barbier.png

976 ms

francois.png

francois.png

902 ms

23-claude.png

23-claude.png

942 ms

analytics.js

analytics.js

31 ms

9SRfENRe5C4

9SRfENRe5C4

92 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

37 ms

collect

collect

20 ms

24-priem.png

24-priem.png

944 ms

valerie-anne-LENCZNAR.png

valerie-anne-LENCZNAR.png

947 ms

25-hadjsaid.png

25-hadjsaid.png

885 ms

26-bena.png

26-bena.png

903 ms

www-embed-player-vflfNyN_r.css

www-embed-player-vflfNyN_r.css

30 ms

www-embed-player.js

www-embed-player.js

48 ms

27-terenti.png

27-terenti.png

930 ms

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

34 ms

ad_status.js

ad_status.js

36 ms

28-perrin.png

28-perrin.png

892 ms

29-javaudin.png

29-javaudin.png

894 ms

social_twitter.png

social_twitter.png

824 ms

social_youtube.png

social_youtube.png

793 ms

loader-05.gif

loader-05.gif

740 ms

icon_open_close.png

icon_open_close.png

767 ms

scroll_to_top.png

scroll_to_top.png

773 ms

Accessibility Review

energy.grenoble-em.com accessibility score

91

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

energy.grenoble-em.com 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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

energy.grenoble-em.com 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

    N/A

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Energy.grenoble-em.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Energy.grenoble-em.com 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

energy.grenoble-em.com

Open Graph description is not detected on the main page of Energy Grenoble Em. 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: