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Visit ref-chem.com now to see the best up-to-date Ref Chem content and also check out these interesting facts you probably never knew about ref-chem.com
Burns & McDonnell provides engineering, architecture, construction, environmental and consulting solutions. We plan, design, permit, construct and manage facilities with one mission in mind: Make our ...
Visit ref-chem.comWe analyzed Ref-chem.com page load time and found that the first response time was 189 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
ref-chem.com performance score
name
value
score
weighting
Value4.3 s
18/100
10%
Value8.2 s
2/100
25%
Value8.1 s
21/100
10%
Value1,890 ms
9/100
30%
Value0.241
52/100
15%
Value18.5 s
3/100
10%
189 ms
56 ms
182 ms
66 ms
48 ms
Our browser made a total of 88 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Ref-chem.com, 18% (16 requests) were made to and 8% (7 requests) were made to Fast.wistia.com. The less responsive or slowest element that took the longest time to load (686 ms) relates to the external source Burnsmcd.com.
Page size can be reduced by 214.2 kB (10%)
2.2 MB
2.0 MB
In fact, the total size of Ref-chem.com main page is 2.2 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. 70% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.
Potential reduce by 73.6 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. This page needs HTML code to be minified as it can gain 13.6 kB, which is 15% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 73.6 kB or 79% of the original size.
Potential reduce by 12.0 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. Ref Chem images are well optimized though.
Potential reduce by 119.2 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 119.2 kB or 23% of the original size.
Potential reduce by 9.4 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. Ref-chem.com has all CSS files already compressed.
Number of requests can be reduced by 43 (62%)
69
26
The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ref Chem. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 34 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.
www.burnsmcd.com
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main.min.css
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theme-overrides.min.css
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ref-chem.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
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
Links do not have a discernible name
ref-chem.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
Page has valid source maps
ref-chem.com SEO score
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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ref-chem.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Ref-chem.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.
ref-chem.com
Open Graph data is detected on the main page of Ref Chem. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: