2.1 sec in total
407 ms
1.6 sec
176 ms
Visit lachimie.fr now to see the best up-to-date Lachimie content for Algeria and also check out these interesting facts you probably never knew about lachimie.fr
Site de référence en chimie pour lycéens, étudiants et professionnels : cours, matériel, sécurité, annales corrigées de concours et baccalauréat, ...
Visit lachimie.frWe analyzed Lachimie.fr page load time and found that the first response time was 407 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
lachimie.fr performance score
name
value
score
weighting
Value2.0 s
83/100
10%
Value3.3 s
69/100
25%
Value8.9 s
15/100
10%
Value5,380 ms
0/100
30%
Value0.685
7/100
15%
Value18.8 s
3/100
10%
407 ms
178 ms
5 ms
551 ms
55 ms
Our browser made a total of 50 requests to load all elements on the main page. We found that 26% of them (13 requests) were addressed to the original Lachimie.fr, 24% (12 requests) were made to D234qeqk649blg.cloudfront.net and 10% (5 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (551 ms) belongs to the original domain Lachimie.fr.
Page size can be reduced by 163.6 kB (39%)
421.7 kB
258.1 kB
In fact, the total size of Lachimie.fr main page is 421.7 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. 45% of websites need less resources to load. Javascripts take 262.1 kB which makes up the majority of the site volume.
Potential reduce by 18.9 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 18.9 kB or 73% of the original size.
Potential reduce by 21.6 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, Lachimie needs image optimization as it can save up to 21.6 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 116.8 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 116.8 kB or 45% of the original size.
Potential reduce by 6.3 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. Lachimie.fr needs all CSS files to be minified and compressed as it can save up to 6.3 kB or 76% of the original size.
Number of requests can be reduced by 15 (32%)
47
32
The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lachimie. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.
lachimie.fr
407 ms
style.css
178 ms
adsbygoogle.js
5 ms
cookiechoices.js
551 ms
ca-pub-7361564952813809.js
55 ms
zrt_lookup.html
55 ms
show_ads_impl.js
70 ms
all.js
175 ms
definition.jpg
126 ms
solutions.jpg
134 ms
analytique.jpg
386 ms
cancerogene-SGH.jpg
421 ms
annales.jpg
268 ms
organique.jpg
257 ms
quantique.jpg
238 ms
materiel.jpg
274 ms
banniere-lachimie.jpg
512 ms
ads
215 ms
osd.js
13 ms
ads
264 ms
185 ms
xd_arbiter.php
149 ms
xd_arbiter.php
306 ms
afr.php
89 ms
m_js_controller.js
81 ms
abg.js
102 ms
audi_t2_2016_q5_728x90.html
110 ms
style-mob.css
105 ms
googlelogo_color_112x36dp.png
58 ms
nessie_icon_tiamat_white.png
41 ms
s
27 ms
x_button_blue2.png
13 ms
adUtils.js
12 ms
edge.6.0.0.min.js
157 ms
share_button.php
123 ms
E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js
6 ms
R-A8WEDAygL.js
312 ms
LVx-xkvaJ0b.png
352 ms
audi_t2_2016_q5_728x90_edge.js
7 ms
audi_t2_2016_q5_728x90_edge.js
6 ms
TweenMax.min.js
30 ms
TweenMax.min.js
37 ms
slide3_728.jpg
36 ms
slide2_728.jpg
46 ms
slide1_728.jpg
41 ms
ctaArrow.png
40 ms
audiLogo_sm.jpg
42 ms
closeBtn.svg
13 ms
webfont.woff
52 ms
AudiType-ExtendedBold.woff
17 ms
lachimie.fr accessibility score
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
[aria-*] attributes do not match their roles
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
<frame> or <iframe> elements do not have a title
lachimie.fr best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
lachimie.fr SEO score
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
Document uses legible font sizes
FR
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lachimie.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 Lachimie.fr 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.
lachimie.fr
Open Graph description is not detected on the main page of Lachimie. 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: