2.2 sec in total
133 ms
1.6 sec
494 ms
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Visit learnscience.academyWe analyzed Learnscience.academy page load time and found that the first response time was 133 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.
learnscience.academy performance score
name
value
score
weighting
Value3.7 s
29/100
10%
Value7.3 s
5/100
25%
Value9.0 s
14/100
10%
Value1,910 ms
8/100
30%
Value0.099
90/100
15%
Value18.9 s
3/100
10%
133 ms
265 ms
61 ms
121 ms
177 ms
Our browser made a total of 63 requests to load all elements on the main page. We found that 65% of them (41 requests) were addressed to the original Learnscience.academy, 10% (6 requests) were made to Youtube.com and 6% (4 requests) were made to Player.vimeo.com. The less responsive or slowest element that took the longest time to load (774 ms) belongs to the original domain Learnscience.academy.
Page size can be reduced by 46.5 kB (4%)
1.1 MB
1.1 MB
In fact, the total size of Learnscience.academy main page is 1.1 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. 55% of websites need less resources to load. Images take 816.7 kB which makes up the majority of the site volume.
Potential reduce by 40.7 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 40.7 kB or 77% of the original size.
Potential reduce by 708 B
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. Learn Science images are well optimized though.
Potential reduce by 5.1 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. This website has mostly compressed JavaScripts.
Potential reduce by 0 B
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. Learnscience.academy has all CSS files already compressed.
Number of requests can be reduced by 26 (46%)
56
30
The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Learn Science. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.
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133 ms
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learnscience.academy 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.
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
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.
learnscience.academy 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
learnscience.academy 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
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 Learnscience.academy 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 Learnscience.academy 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.
learnscience.academy
Open Graph data is detected on the main page of Learn Science. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: