6.8 sec in total
1.5 sec
5.1 sec
227 ms
Visit mersen.com now to see the best up-to-date MERSEN content for United States and also check out these interesting facts you probably never knew about mersen.com
Mersen is a global expert in electrical specialties and advanced materials for high-tech industries. With more than 50 industrial sites and 16 R&D centers in 35 countries around the world, Mersen deve...
Visit mersen.comWe analyzed Mersen.com page load time and found that the first response time was 1.5 sec and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
mersen.com performance score
name
value
score
weighting
Value8.8 s
0/100
10%
Value16.1 s
0/100
25%
Value20.8 s
0/100
10%
Value1,350 ms
17/100
30%
Value0.051
99/100
15%
Value16.8 s
5/100
10%
1476 ms
152 ms
259 ms
153 ms
155 ms
Our browser made a total of 84 requests to load all elements on the main page. We found that 93% of them (78 requests) were addressed to the original Mersen.com, 2% (2 requests) were made to Ajax.googleapis.com and 2% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Mersen.com.
Page size can be reduced by 951.1 kB (52%)
1.8 MB
867.9 kB
In fact, the total size of Mersen.com main page is 1.8 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Javascripts take 909.6 kB which makes up the majority of the site volume.
Potential reduce by 141.8 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 141.8 kB or 83% of the original size.
Potential reduce by 31.5 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. MERSEN images are well optimized though.
Potential reduce by 628.9 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 628.9 kB or 69% of the original size.
Potential reduce by 148.9 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. Mersen.com needs all CSS files to be minified and compressed as it can save up to 148.9 kB or 83% of the original size.
Number of requests can be reduced by 39 (47%)
83
44
The browser has sent 83 CSS, Javascripts, AJAX and image requests in order to completely render the main page of MERSEN. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.
www.mersen.com
1476 ms
jquery.ui.all.css
152 ms
114ec27b78_minify__merged.css
259 ms
homeSlider.css
153 ms
video.css
155 ms
jquery.ui.base.css
37 ms
jquery.ui.theme.css
77 ms
jquery.ui.core.css
38 ms
jquery.ui.resizable.css
38 ms
jquery.ui.selectable.css
81 ms
jquery.ui.accordion.css
81 ms
jquery.ui.autocomplete.css
81 ms
jquery.ui.button.css
106 ms
jquery.ui.dialog.css
119 ms
jquery.ui.datepicker.css
118 ms
jquery.ui.progressbar.css
117 ms
jquery2.1.3.min.js
137 ms
ol.js
630 ms
ol3-popup.js
120 ms
prum.min.js
57 ms
body_bg.png
65 ms
top_bg.jpg
64 ms
search_valider_fr.png
623 ms
rss.png
77 ms
us_uk.gif
626 ms
de.gif
625 ms
cn.gif
646 ms
padlock.png
185 ms
mersen_logo.png
222 ms
list_bg.png
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middle_bg.jpg
681 ms
slider.png
1173 ms
2014-mersen-energie-expertise.JPG
1404 ms
1px65.png
1195 ms
mersen-marches-solaire_02.jpg
1457 ms
jquery.min.js
74 ms
jquery-ui.min.js
95 ms
js
58 ms
b1aca6aa46_minify__merged.css
575 ms
456a7cf11b_minify__merged.js
868 ms
defiler.js
538 ms
flowplayer-3.2.6.min.js
537 ms
homeSlider.js
537 ms
mersen-presence-asie_01.jpg
1307 ms
ombre_940px.png
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link_puce.jpg
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ctx_fullpage_bg.png
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bg-mini-blocks.jpg
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link_puce.jpg
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valider_find_contact.png
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00_HomeFrench_03.jpg
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ga.js
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point_ul.png
468 ms
fillet_liste.png
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fd_ul_niv2.png
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slider-nav-loader.gif
1047 ms
map.svg
1946 ms
icon1.png
1135 ms
__utm.gif
24 ms
28cbffd700_minify__merged.css
66 ms
mersen.com 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-hidden="true"] elements contain focusable descendents
ARIA input fields do not have accessible names
ARIA toggle fields do not have accessible names
ARIA IDs are not unique
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
Buttons do not have an accessible name
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
mersen.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
mersen.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
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
EN
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Mersen.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed French language. Our system also found out that Mersen.com 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.
mersen.com
Open Graph description is not detected on the main page of MERSEN. 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: