Tools & Wizards About Us

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

jetcost.fr

Vol pas cher et Billet d'avion | Comparateur de Vol Jetcost

Page Load Speed

3.9 sec in total

First Response

517 ms

Resources Loaded

2.1 sec

Page Rendered

1.4 sec

About Website

Visit jetcost.fr now to see the best up-to-date Jetcost content for France and also check out these interesting facts you probably never knew about jetcost.fr

Vol pas cher ✈ Comparez tous les billets d'avion pas chers sur plusieurs centaines de sites avec Jetcost en quelques secondes ✈ Comparateur de vol

Visit jetcost.fr

Key Findings

We analyzed Jetcost.fr page load time and found that the first response time was 517 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

jetcost.fr performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value6.0 s

46/100

10%

TBT (Total Blocking Time)

Value3,570 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.09

92/100

15%

TTI (Time to Interactive)

Value11.1 s

20/100

10%

Network Requests Diagram

jetcost.fr

517 ms

www.jetcost.com

955 ms

theme.min.css

288 ms

app.min.css

305 ms

polyfill-old.min.js

308 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 5% of them (1 request) were addressed to the original Jetcost.fr, 80% (16 requests) were made to Jtc.meta-cdn.net and 5% (1 request) were made to Jetcost.com. The less responsive or slowest element that took the longest time to load (955 ms) relates to the external source Jetcost.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 282.0 kB (45%)

Content Size

633.3 kB

After Optimization

351.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jetcost.fr main page is 633.3 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. 70% of websites need less resources to load. Images take 330.5 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 241.5 kB

  • Original 287.0 kB
  • After minification 226.3 kB
  • After compression 45.5 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 60.7 kB, which is 21% 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 241.5 kB or 84% of the original size.

Image Optimization

-8%

Potential reduce by 26.2 kB

  • Original 330.5 kB
  • After minification 304.3 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. Jetcost images are well optimized though.

JavaScript Optimization

-29%

Potential reduce by 411 B

  • Original 1.4 kB
  • After minification 1.4 kB
  • After compression 999 B

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 411 B or 29% of the original size.

CSS Optimization

-96%

Potential reduce by 13.9 kB

  • Original 14.4 kB
  • After minification 550 B
  • After compression 535 B

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. Jetcost.fr needs all CSS files to be minified and compressed as it can save up to 13.9 kB or 96% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (20%)

Requests Now

15

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jetcost. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

jetcost.fr accessibility score

77

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

jetcost.fr best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

jetcost.fr SEO score

100

Search Engine Optimization Advices

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

    FR

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jetcost.fr can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it matches the claimed language. Our system also found out that Jetcost.fr main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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