3.6 sec in total
421 ms
3 sec
237 ms
Visit chemische-binding.nl now to see the best up-to-date Chemische Binding content for Netherlands and also check out these interesting facts you probably never knew about chemische-binding.nl
Study Association for Chemistry and Chemical Engineering in Groningen
Visit chemische-binding.nlWe analyzed Chemische-binding.nl page load time and found that the first response time was 421 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
chemische-binding.nl performance score
name
value
score
weighting
Value5.3 s
7/100
10%
Value13.1 s
0/100
25%
Value8.4 s
18/100
10%
Value750 ms
39/100
30%
Value0.001
100/100
15%
Value11.8 s
17/100
10%
421 ms
868 ms
133 ms
231 ms
307 ms
Our browser made a total of 44 requests to load all elements on the main page. We found that 80% of them (35 requests) were addressed to the original Chemische-binding.nl, 7% (3 requests) were made to Fonts.gstatic.com and 5% (2 requests) were made to Cdn.mathjax.org. The less responsive or slowest element that took the longest time to load (882 ms) belongs to the original domain Chemische-binding.nl.
Page size can be reduced by 817.5 kB (55%)
1.5 MB
680.6 kB
In fact, the total size of Chemische-binding.nl main page is 1.5 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. 45% of websites need less resources to load. Javascripts take 598.8 kB which makes up the majority of the site volume.
Potential reduce by 60.8 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 60.8 kB or 71% of the original size.
Potential reduce by 34.2 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. Chemische Binding images are well optimized though.
Potential reduce by 435.3 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 435.3 kB or 73% of the original size.
Potential reduce by 287.3 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. Chemische-binding.nl needs all CSS files to be minified and compressed as it can save up to 287.3 kB or 84% of the original size.
Number of requests can be reduced by 18 (47%)
38
20
The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chemische Binding. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
chemische-binding.nl
421 ms
chemische-binding.nl
868 ms
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133 ms
css_vZ_wrMQ9Og-YPPxa1q4us3N7DsZMJa-14jShHgRoRNo.css
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css
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jquery-1.7.2.min.js
39 ms
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MathJax.js
61 ms
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TeX-AMS-MML_HTMLorMML.js
19 ms
analytics.js
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steamlogogrijs.svg
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websitelogo.png
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slide1_0.jpg
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chemische-binding.nl 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 input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
chemische-binding.nl 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
chemische-binding.nl 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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chemische-binding.nl 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 Chemische-binding.nl 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.
chemische-binding.nl
Open Graph description is not detected on the main page of Chemische Binding. 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: