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Welcome to science4all.org homepage info - get ready to check Science4 All best content for United States right away, or after learning these important things about science4all.org
Quality Popular Science
Visit science4all.orgWe analyzed Science4all.org page load time and found that the first response time was 2.1 sec and then it took 33 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 5 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
science4all.org performance score
name
value
score
weighting
Value3.6 s
33/100
10%
Value3.9 s
52/100
25%
Value13.4 s
2/100
10%
Value5,050 ms
0/100
30%
Value0.464
19/100
15%
Value25.2 s
0/100
10%
2092 ms
398 ms
273 ms
527 ms
408 ms
Our browser made a total of 140 requests to load all elements on the main page. We found that 59% of them (83 requests) were addressed to the original Science4all.org, 21% (29 requests) were made to Youtube.com and 7% (10 requests) were made to Cdn.mathjax.org. The less responsive or slowest element that took the longest time to load (20 sec) belongs to the original domain Science4all.org.
Page size can be reduced by 755.5 kB (27%)
2.8 MB
2.1 MB
In fact, the total size of Science4all.org 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. 55% of websites need less resources to load. Images take 2.0 MB which makes up the majority of the site volume.
Potential reduce by 79.0 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 79.0 kB or 81% of the original size.
Potential reduce by 183.0 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. Science4 All images are well optimized though.
Potential reduce by 434.2 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 434.2 kB or 70% of the original size.
Potential reduce by 59.4 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. Science4all.org needs all CSS files to be minified and compressed as it can save up to 59.4 kB or 69% of the original size.
Number of requests can be reduced by 38 (30%)
128
90
The browser has sent 128 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science4 All. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
www.science4all.org
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science4all.org 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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
science4all.org 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
Browser errors were logged to the console
science4all.org SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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 Science4all.org 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 Science4all.org 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.
science4all.org
Open Graph data is detected on the main page of Science4 All. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: