2.4 sec in total
410 ms
1.8 sec
180 ms
Welcome to luz.fr homepage info - get ready to check LUZ best content for France right away, or after learning these important things about luz.fr
LUZ : 1ère centrale, dirigée par des opticiens toujours en exercice. 5 domaines d'expertise : optique lunetterie, audioprothèse, centrale d'achat, animation de réseaux, édition de logiciels métiers po...
Visit luz.frWe analyzed Luz.fr page load time and found that the first response time was 410 ms and then it took 2 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.
luz.fr performance score
name
value
score
weighting
Value4.0 s
24/100
10%
Value7.6 s
3/100
25%
Value5.3 s
58/100
10%
Value160 ms
94/100
30%
Value0.026
100/100
15%
Value7.1 s
52/100
10%
410 ms
107 ms
198 ms
309 ms
201 ms
Our browser made a total of 48 requests to load all elements on the main page. We found that 83% of them (40 requests) were addressed to the original Luz.fr, 4% (2 requests) were made to Connect.facebook.net and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (991 ms) belongs to the original domain Luz.fr.
Page size can be reduced by 212.3 kB (39%)
549.5 kB
337.2 kB
In fact, the total size of Luz.fr main page is 549.5 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. 20% of websites need less resources to load. Images take 304.3 kB which makes up the majority of the site volume.
Potential reduce by 29.7 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 29.7 kB or 75% of the original size.
Potential reduce by 40.9 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, LUZ needs image optimization as it can save up to 40.9 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 123.0 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 123.0 kB or 67% of the original size.
Potential reduce by 18.7 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. Luz.fr needs all CSS files to be minified and compressed as it can save up to 18.7 kB or 81% of the original size.
Number of requests can be reduced by 23 (49%)
47
24
The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of LUZ. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
luz.fr
410 ms
shadowbox.css
107 ms
mod_yoo_carousel.css.php
198 ms
mootools.js
309 ms
caption.js
201 ms
validate.js
200 ms
mod_yoo_carousel.js
210 ms
yoo_effects.js.php
219 ms
transmenu_Packed.js
293 ms
system.css
295 ms
general.css
296 ms
template.css
346 ms
fbds.js
137 ms
myLuz.jpg
219 ms
luzaudio.jpg
581 ms
bt_connexion.jpg
571 ms
envie_de.jpg
658 ms
questions-reponses.jpg
232 ms
equipe_thumb.jpg
294 ms
delegue_map.jpg
720 ms
thumbHome_SUPERCENT.png
392 ms
tel.jpg
392 ms
RRmap.jpg
450 ms
veritas.jpg
487 ms
ic_FB.png
555 ms
ic_TW.png
582 ms
ic_PIN.png
661 ms
ic_YT.png
662 ms
all.js
334 ms
bg_header.gif
670 ms
luz_logo.png
678 ms
bg_input.jpg
738 ms
bg_left.png
724 ms
bg_faq3.jpg
712 ms
bg-yoo-carousel.png
716 ms
button_prev.png
728 ms
button_next.png
776 ms
bg_acv.jpg
889 ms
bg_optikid.png
991 ms
bg_user4.png
812 ms
bg_delegue.png
829 ms
bg_actu.png
811 ms
analytics.js
9 ms
collect
15 ms
103 ms
41 ms
xd_arbiter.php
214 ms
xd_arbiter.php
424 ms
luz.fr accessibility score
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
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
<object> elements do not have alternate text
luz.fr best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
luz.fr SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Document uses plugins
FR
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Luz.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 Luz.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.
luz.fr
Open Graph description is not detected on the main page of LUZ. 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: