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Click here to check amazing Science Mag content for China. Otherwise, check out these important facts you probably never knew about sciencemag.org
Visit sciencemag.orgWe analyzed Sciencemag.org page load time and found that the first response time was 16 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
sciencemag.org performance score
name
value
score
weighting
Value6.4 s
2/100
10%
Value45.1 s
0/100
25%
Value15.0 s
1/100
10%
Value15,860 ms
0/100
30%
Value0.025
100/100
15%
Value43.2 s
0/100
10%
16 ms
239 ms
14 ms
134 ms
141 ms
Our browser made a total of 164 requests to load all elements on the main page. We found that 47% of them (77 requests) were addressed to the original Sciencemag.org, 11% (18 requests) were made to Pbs.twimg.com and 7% (11 requests) were made to Assets.adobedtm.com. The less responsive or slowest element that took the longest time to load (962 ms) belongs to the original domain Sciencemag.org.
Page size can be reduced by 1.7 MB (26%)
6.5 MB
4.8 MB
In fact, the total size of Sciencemag.org main page is 6.5 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. 80% 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 4.5 MB which makes up the majority of the site volume.
Potential reduce by 138.1 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 138.1 kB or 81% of the original size.
Potential reduce by 144.3 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. Science Mag images are well optimized though.
Potential reduce by 826.9 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 826.9 kB or 74% of the original size.
Potential reduce by 546.3 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. Sciencemag.org needs all CSS files to be minified and compressed as it can save up to 546.3 kB or 83% of the original size.
Number of requests can be reduced by 57 (39%)
146
89
The browser has sent 146 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science Mag. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 39 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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sciencemag.org 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-*] attributes do not match their roles
[aria-*] attributes do not have valid values
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
sciencemag.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
sciencemag.org 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
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 Sciencemag.org 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 Sciencemag.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.
sciencemag.org
Open Graph description is not detected on the main page of Science Mag. 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: