953 ms in total
69 ms
526 ms
358 ms
Welcome to jm.com homepage info - get ready to check Jm best content for United States right away, or after learning these important things about jm.com
Johns Manville is committed to manufacturing premium-quality insulation, commercial roofing and building materials. We measure success by the relationships we build and the positive impacts we have on...
Visit jm.comWe analyzed Jm.com page load time and found that the first response time was 69 ms and then it took 884 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.
jm.com performance score
name
value
score
weighting
Value3.2 s
44/100
10%
Value15.1 s
0/100
25%
Value5.5 s
55/100
10%
Value440 ms
65/100
30%
Value0.033
100/100
15%
Value10.0 s
27/100
10%
69 ms
110 ms
10 ms
28 ms
31 ms
Our browser made a total of 58 requests to load all elements on the main page. We found that 88% of them (51 requests) were addressed to the original Jm.com, 5% (3 requests) were made to Assets.adobedtm.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (192 ms) belongs to the original domain Jm.com.
Page size can be reduced by 747.2 kB (27%)
2.8 MB
2.1 MB
In fact, the total size of Jm.com main page is 2.8 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.2 MB which makes up the majority of the site volume.
Potential reduce by 19.4 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 19.4 kB or 76% of the original size.
Potential reduce by 349.6 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, Jm needs image optimization as it can save up to 349.6 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 330.2 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 330.2 kB or 69% of the original size.
Potential reduce by 48.1 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. Jm.com needs all CSS files to be minified and compressed as it can save up to 48.1 kB or 78% of the original size.
Number of requests can be reduced by 23 (41%)
56
33
The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jm. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
jm.com
69 ms
www.jm.com
110 ms
jquery.min.js
10 ms
utils.min.js
28 ms
granite.min.js
31 ms
jquery.min.js
30 ms
main.min.js
31 ms
main.min.css
34 ms
satelliteLib-bace3c6eac9e9ca21dffd1d3217616ac6152a7f1.js
24 ms
base.min.js
32 ms
modernizr.min.js
30 ms
base.min.css
61 ms
t01.min.css
59 ms
shared.min.js
69 ms
kernel.min.js
72 ms
shared.min.css
71 ms
jquery.min.js
70 ms
analytics.js
185 ms
bg-header-top.png
182 ms
Homepage_bldg5.jpg
185 ms
banner-arrow.png
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cq5dam.thumbnail.143.83.png
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watchVideoIcon.png
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home-insulation-home.jpg
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xcq5dam.thumbnail.143.83.png.pagespeed.ic.xfVoI7OEcK.jpg
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building-facilities-home.jpg
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btn-callouts-open.png
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xcq5dam.thumbnail.255.160.png.pagespeed.ic.u65EWMwySd.jpg
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satellite-55a6beb563336200140001df.js
160 ms
s-code-contents-994ce48840a6ae7e3adec94f35bfbd2b3930c9f7.js
158 ms
logo-johnsmanville-blue.png
52 ms
icon-search-lg.png
54 ms
banner-video-bg.png
50 ms
bg-callouts-orange.png
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bg-callouts-bluegreen.png
54 ms
bg-callouts-purple.png
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icon-social-facebook.gif
56 ms
icon-social-linkedin.gif
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icon-social-twitter.gif
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icon-social-instagram.jpg
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icon-arrowup-fancy.gif
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logo-johnsmanville-white.png
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ecf89914-1896-43f6-a0a0-fe733d1db6e7.woff
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2335ee1c-e8df-415c-aba9-387b8dc8f955.woff
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b993da84-c1f6-474a-8f00-8aa797b3de8f.woff
59 ms
7cc7234f-05ac-4109-8b8a-93f13c489739.woff
58 ms
77f6e0fc-9416-4830-8029-823319e3b166.woff
59 ms
collect
26 ms
s51919776916038
15 ms
pd.js
8 ms
jm.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
jm.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
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
jm.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jm.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Jm.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.
jm.com
Open Graph description is not detected on the main page of Jm. 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: