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Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

jejavascript.net

Livres Informatique - Avis sur les livres d'informatique

Page Load Speed

2 sec in total

First Response

736 ms

Resources Loaded

1.1 sec

Page Rendered

116 ms

jejavascript.net screenshot

About Website

Visit jejavascript.net now to see the best up-to-date Jejavascript content and also check out these interesting facts you probably never knew about jejavascript.net

Avis sur les livres d'informatique

Visit jejavascript.net

Key Findings

We analyzed Jejavascript.net page load time and found that the first response time was 736 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

jejavascript.net performance score

0

Network Requests Diagram

jejavascript.net

736 ms

bg.png

273 ms

counter.js

9 ms

header_bg.png

288 ms

logo_off.gif

300 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that 13% of them (1 request) were addressed to the original Jejavascript.net, 63% (5 requests) were made to Namebrightstatic.com and 13% (1 request) were made to Statcounter.com. The less responsive or slowest element that took the longest time to load (736 ms) belongs to the original domain Jejavascript.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 8.8 kB (19%)

Content Size

46.6 kB

After Optimization

37.8 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Jejavascript.net main page is 46.6 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. Only 10% of websites need less resources to load. Images take 26.5 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 3.5 kB

  • Original 5.0 kB
  • After minification 3.9 kB
  • After compression 1.5 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 1.0 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 3.5 kB or 69% of the original size.

Image Optimization

-15%

Potential reduce by 3.9 kB

  • Original 26.5 kB
  • After minification 22.6 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, Jejavascript needs image optimization as it can save up to 3.9 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-10%

Potential reduce by 1.5 kB

  • Original 15.1 kB
  • After minification 15.1 kB
  • After compression 13.6 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. This website has mostly compressed JavaScripts.

Requests Breakdown

We found no issues to fix!

Requests Now

7

After Optimization

7

  • Images
  • JavaScript

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jejavascript. According to our analytics all requests are already optimized.

Network Requests Diagram

jejavascript.net

jejavascript.net

736 ms

bg.png

bg.png

273 ms

counter.js

counter.js

9 ms

header_bg.png

header_bg.png

288 ms

logo_off.gif

logo_off.gif

300 ms

error_board.png

error_board.png

347 ms

site_maintenance.png

site_maintenance.png

386 ms

t.php

t.php

145 ms

SEO Factors

jejavascript.net SEO score

0

Language and Encoding

  • Language Detected

    FR

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jejavascript.net 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 Jejavascript.net main page’s claimed encoding is iso-8859-1. 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

jejavascript.net

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