Report Summary

  • 82

    Performance

    Renders faster than
    87% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

cieltropical.com

CDSA :: Club de Découverte des Sciences Astronomiques

Page Load Speed

2.6 sec in total

First Response

684 ms

Resources Loaded

1.6 sec

Page Rendered

253 ms

cieltropical.com screenshot

About Website

Click here to check amazing Cieltropical content for Martinique. Otherwise, check out these important facts you probably never knew about cieltropical.com

Le site d'astronomie CielTropical.com propose des informations relatives au ciel de Martinique. Cartes, activités, brochures...

Visit cieltropical.com

Key Findings

We analyzed Cieltropical.com page load time and found that the first response time was 684 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

cieltropical.com performance score

82

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

87/100

25%

SI (Speed Index)

Value4.0 s

80/100

10%

TBT (Total Blocking Time)

Value210 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0.109

87/100

15%

TTI (Time to Interactive)

Value6.5 s

58/100

10%

Network Requests Diagram

cieltropical.com

684 ms

fonctions_popup_js.inc.js

80 ms

fonctions_utiles_js.inc.js

157 ms

fonctions_validations_js.inc.js

158 ms

fonction_scrolling_txt.inc.js

158 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 67% of them (31 requests) were addressed to the original Cieltropical.com, 20% (9 requests) were made to Static.xx.fbcdn.net and 4% (2 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (684 ms) belongs to the original domain Cieltropical.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 92.5 kB (17%)

Content Size

547.7 kB

After Optimization

455.2 kB

In fact, the total size of Cieltropical.com main page is 547.7 kB. 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 454.3 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 38.8 kB

  • Original 48.4 kB
  • After minification 44.8 kB
  • After compression 9.6 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 38.8 kB or 80% of the original size.

Image Optimization

-8%

Potential reduce by 37.0 kB

  • Original 454.3 kB
  • After minification 417.3 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. Cieltropical images are well optimized though.

JavaScript Optimization

-38%

Potential reduce by 16.4 kB

  • Original 43.5 kB
  • After minification 43.5 kB
  • After compression 27.0 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 16.4 kB or 38% of the original size.

CSS Optimization

-21%

Potential reduce by 321 B

  • Original 1.5 kB
  • After minification 1.5 kB
  • After compression 1.2 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. Cieltropical.com needs all CSS files to be minified and compressed as it can save up to 321 B or 21% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (49%)

Requests Now

45

After Optimization

23

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cieltropical. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

cieltropical.com accessibility score

64

Accessibility Issues

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

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

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

cieltropical.com best practices score

58

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

cieltropical.com SEO score

69

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    FR

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cieltropical.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 French. Our system also found out that Cieltropical.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

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