Tools & Wizards About Us
ccc-lyon.com screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

ccc-lyon.com

Centre de Congrès | Lyon events

Page Load Speed

3.3 sec in total

First Response

686 ms

Resources Loaded

2.4 sec

Page Rendered

164 ms

ccc-lyon.com screenshot

About Website

Click here to check amazing Ccc Lyon content for France. Otherwise, check out these important facts you probably never knew about ccc-lyon.com

Centre de congrès de Lyon. Organisation de conventions, de congrès, de séminaires, de salons, de réunions à la Cité Internationale.

Visit ccc-lyon.com

Key Findings

We analyzed Ccc-lyon.com page load time and found that the first response time was 686 ms and then it took 2.6 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

ccc-lyon.com performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value17.4 s

0/100

25%

SI (Speed Index)

Value16.6 s

0/100

10%

TBT (Total Blocking Time)

Value15,090 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.03

100/100

15%

TTI (Time to Interactive)

Value20.4 s

2/100

10%

Network Requests Diagram

ccc-lyon.com

686 ms

global.css

420 ms

flash.css

211 ms

home.css

322 ms

slideshow.css

220 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 96% of them (68 requests) were addressed to the original Ccc-lyon.com, 3% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Tracking.veille-referencement.com. The less responsive or slowest element that took the longest time to load (954 ms) belongs to the original domain Ccc-lyon.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 383.2 kB (32%)

Content Size

1.2 MB

After Optimization

830.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ccc-lyon.com main page is 1.2 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. 20% of websites need less resources to load. Images take 805.7 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 24.3 kB

  • Original 31.0 kB
  • After minification 27.5 kB
  • After compression 6.7 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 3.4 kB, which is 11% 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 24.3 kB or 78% of the original size.

Image Optimization

-11%

Potential reduce by 88.1 kB

  • Original 805.7 kB
  • After minification 717.6 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, Ccc Lyon needs image optimization as it can save up to 88.1 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 243.1 kB

  • Original 343.7 kB
  • After minification 303.5 kB
  • After compression 100.6 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 243.1 kB or 71% of the original size.

CSS Optimization

-82%

Potential reduce by 27.7 kB

  • Original 33.6 kB
  • After minification 22.8 kB
  • After compression 6.0 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. Ccc-lyon.com needs all CSS files to be minified and compressed as it can save up to 27.7 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (58%)

Requests Now

67

After Optimization

28

  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ccc Lyon. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ccc-lyon.com

ccc-lyon.com

686 ms

global.css

global.css

420 ms

flash.css

flash.css

211 ms

home.css

home.css

322 ms

slideshow.css

slideshow.css

220 ms

jquery.fancybox.css

jquery.fancybox.css

416 ms

boss.js

boss.js

321 ms

jquery-1.3.2.min.js

jquery-1.3.2.min.js

643 ms

cufon-yui.js

cufon-yui.js

424 ms

din_font.js

din_font.js

954 ms

cufon_transform.js

cufon_transform.js

427 ms

top_menu_rollover.js

top_menu_rollover.js

521 ms

jquery.event.hover-1.0.js

jquery.event.hover-1.0.js

522 ms

global.js

global.js

527 ms

jquery.cycle.all.js

jquery.cycle.all.js

744 ms

diapo.js

diapo.js

530 ms

swfobject.js

swfobject.js

537 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

648 ms

jquery.galleryview-1.1.js

jquery.galleryview-1.1.js

639 ms

jquery.timers-1.1.2.js

jquery.timers-1.1.2.js

648 ms

transformContentToSlideshow.js

transformContentToSlideshow.js

655 ms

jquery.fancybox.js

jquery.fancybox.js

746 ms

TAG_passage.js

TAG_passage.js

165 ms

e247136d24a85a073ae04ef25c47c2d7b4085ad0.jpg

e247136d24a85a073ae04ef25c47c2d7b4085ad0.jpg

121 ms

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6b9d5fd91f6bba0f820ea872c9c301d903d0345a.jpg

117 ms

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3d5be3ce108c589c61d12ca744bde0c82526ae25.jpg

211 ms

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f03897770d479e3781bc0a4b7243970830e83c98.jpg

210 ms

ca252ec55f086985dca21a1ced58d71576454b4d.jpg

ca252ec55f086985dca21a1ced58d71576454b4d.jpg

124 ms

news-thumbnail_d20b6ac34babb013de0a44a60b73cc72e341aef4.jpg

news-thumbnail_d20b6ac34babb013de0a44a60b73cc72e341aef4.jpg

121 ms

news-thumbnail_fb578febb661a8f47e9636f98cbaf5be45ec1f67.jpg

news-thumbnail_fb578febb661a8f47e9636f98cbaf5be45ec1f67.jpg

225 ms

2e8972da4bdc4a854076801f0b2ee9fca7841a8a.jpg

2e8972da4bdc4a854076801f0b2ee9fca7841a8a.jpg

331 ms

discover_off.png

discover_off.png

227 ms

succeed_off.png

succeed_off.png

230 ms

enjoy_off.png

enjoy_off.png

314 ms

bg_categories.gif

bg_categories.gif

316 ms

slideshow-home_8d987717cabf395d2a5e6e59088e7ae9eb9caac3.jpg

slideshow-home_8d987717cabf395d2a5e6e59088e7ae9eb9caac3.jpg

438 ms

slideshow-home_fc17204772fd9d7e8c3910fb7063d2b0a22e68b7.jpg

slideshow-home_fc17204772fd9d7e8c3910fb7063d2b0a22e68b7.jpg

654 ms

slideshow-home_b2ef9c49d520afbe5c62575c3682a3bca9f0e5f6.jpg

slideshow-home_b2ef9c49d520afbe5c62575c3682a3bca9f0e5f6.jpg

448 ms

slideshow-home_e214f3426d16579fc4f5221bba92473053c0fee0.jpg

slideshow-home_e214f3426d16579fc4f5221bba92473053c0fee0.jpg

524 ms

slideshow-home_40ed73af8a9870d556d55c6fb3d8a6a4599db7cf.jpg

slideshow-home_40ed73af8a9870d556d55c6fb3d8a6a4599db7cf.jpg

525 ms

d93158f0aa2224a26ef5f3d97b0ba50aec3acbdb.png

d93158f0aa2224a26ef5f3d97b0ba50aec3acbdb.png

435 ms

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543 ms

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cb09f416f337433064de37c19cd355d08e2648f0.png

544 ms

orga_off.png

orga_off.png

552 ms

exposant_off.png

exposant_off.png

631 ms

visit_off.png

visit_off.png

632 ms

linkedin_off.png

linkedin_off.png

650 ms

fb_off.png

fb_off.png

651 ms

twitter_off.png

twitter_off.png

660 ms

rss_off.png

rss_off.png

734 ms

logo_only_lyon.png

logo_only_lyon.png

736 ms

footer_bubble.png

footer_bubble.png

760 ms

bg_yellow.png

bg_yellow.png

745 ms

yellow_arrow_list.gif

yellow_arrow_list.gif

744 ms

white_line_right_menu.gif

white_line_right_menu.gif

753 ms

ok.gif

ok.gif

825 ms

footer_logo.png

footer_logo.png

831 ms

bg_grey.png

bg_grey.png

856 ms

bg_grey_bottom.jpg

bg_grey_bottom.jpg

855 ms

ga.js

ga.js

5 ms

__utm.gif

__utm.gif

12 ms

bg_yellow_bottom.jpg

bg_yellow_bottom.jpg

761 ms

bg_header.jpg

bg_header.jpg

872 ms

bg_logo.png

bg_logo.png

830 ms

bg_header_left.jpg

bg_header_left.jpg

834 ms

bg_header_right.jpg

bg_header_right.jpg

776 ms

bg_left_bottom_degrade.jpg

bg_left_bottom_degrade.jpg

775 ms

next.png

next.png

761 ms

prev.png

prev.png

830 ms

panel-nav-next.png

panel-nav-next.png

834 ms

panel-nav-prev.png

panel-nav-prev.png

776 ms

Accessibility Review

ccc-lyon.com accessibility score

80

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-hidden="true"] elements contain focusable descendents

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

Buttons do not have an accessible name

High

Form elements do not have associated labels

High

Links do not have a discernible name

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.

Best Practices

ccc-lyon.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

ccc-lyon.com 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

    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 Ccc-lyon.com 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 Ccc-lyon.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

ccc-lyon.com

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