8.1 sec in total
831 ms
6.6 sec
654 ms
Click here to check amazing Science Alert content. Otherwise, check out these important facts you probably never knew about sciencealert.com.au
The latest science news. Publishing independent, fact-checked reporting on health, space, nature, technology, and the environment.
Visit sciencealert.com.auWe analyzed Sciencealert.com.au page load time and found that the first response time was 831 ms and then it took 7.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
sciencealert.com.au performance score
name
value
score
weighting
Value2.8 s
57/100
10%
Value3.9 s
53/100
25%
Value18.1 s
0/100
10%
Value9,640 ms
0/100
30%
Value0
100/100
15%
Value41.1 s
0/100
10%
831 ms
1785 ms
1901 ms
546 ms
23 ms
Our browser made a total of 110 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Sciencealert.com.au, 36% (40 requests) were made to Sciencealert.com and 19% (21 requests) were made to Graph.facebook.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Sciencealert.com.
Page size can be reduced by 624.1 kB (40%)
1.5 MB
922.8 kB
In fact, the total size of Sciencealert.com.au 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. 75% 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 616.6 kB which makes up the majority of the site volume.
Potential reduce by 222.5 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 222.5 kB or 82% of the original size.
Potential reduce by 889 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. Science Alert images are well optimized though.
Potential reduce by 311.0 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 311.0 kB or 56% of the original size.
Potential reduce by 89.6 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. Sciencealert.com.au needs all CSS files to be minified and compressed as it can save up to 89.6 kB or 86% of the original size.
Number of requests can be reduced by 42 (44%)
95
53
The browser has sent 95 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science Alert. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
sciencealert.com.au
831 ms
www.sciencealert.com.au
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sciencealert.com
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www.sciencealert.com
546 ms
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sciencealert.com.au 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
sciencealert.com.au 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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
sciencealert.com.au 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 Sciencealert.com.au 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 Sciencealert.com.au 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.
sciencealert.com.au
Open Graph description is not detected on the main page of Science Alert. 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: