Tools & Wizards About Us

Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

4d.developpez.com

4D Actualités, cours, tutoriels, programmation, FAQ, livres, forum

Page Load Speed

3 sec in total

First Response

252 ms

Resources Loaded

2.3 sec

Page Rendered

410 ms

About Website

Visit 4d.developpez.com now to see the best up-to-date 4D Developpez content for France and also check out these interesting facts you probably never knew about 4d.developpez.com

Club des developpeurs : Forum, Cours et tutoriels en programmation : Delphi, C, C++, Java, VB, DotNET, C#, PHP, ASP, UML, XML

Visit 4d.developpez.com

Key Findings

We analyzed 4d.developpez.com page load time and found that the first response time was 252 ms and then it took 2.7 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

4d.developpez.com performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

22/100

25%

SI (Speed Index)

Value4.7 s

69/100

10%

TBT (Total Blocking Time)

Value170 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value5.7 s

69/100

10%

Network Requests Diagram

4d.developpez.com

252 ms

4d.developpez.com

545 ms

js

59 ms

jquery-3.4.1.js

156 ms

popper.js

238 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 50% of them (29 requests) were addressed to the original 4d.developpez.com, 33% (19 requests) were made to Developpez.com and 3% (2 requests) were made to Compteur.developpez.com. The less responsive or slowest element that took the longest time to load (545 ms) belongs to the original domain 4d.developpez.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 88.8 kB (20%)

Content Size

449.9 kB

After Optimization

361.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 4d.developpez.com main page is 449.9 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. 55% of websites need less resources to load. Javascripts take 221.6 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 49.1 kB

  • Original 61.9 kB
  • After minification 58.9 kB
  • After compression 12.9 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 49.1 kB or 79% of the original size.

Image Optimization

-16%

Potential reduce by 15.6 kB

  • Original 96.7 kB
  • After minification 81.0 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, 4D Developpez needs image optimization as it can save up to 15.6 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-8%

Potential reduce by 18.7 kB

  • Original 221.6 kB
  • After minification 221.6 kB
  • After compression 202.9 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.

CSS Optimization

-8%

Potential reduce by 5.4 kB

  • Original 69.7 kB
  • After minification 69.7 kB
  • After compression 64.4 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. 4d.developpez.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 29 (52%)

Requests Now

56

After Optimization

27

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 4D Developpez. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

4d.developpez.com accessibility score

68

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

[role] values are not valid

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

4d.developpez.com best practices score

67

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

4d.developpez.com SEO score

86

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

Links do not have descriptive text

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

    FR

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 4d.developpez.com 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 4d.developpez.com 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

Open Graph description is not detected on the main page of 4D Developpez. 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: