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Welcome to ska.ac.za homepage info - get ready to check Ska best content for South Africa right away, or after learning these important things about ska.ac.za
The South African Radio Astronomy Observatory (SARAO), a facility of the National Research Foundation, is responsible for managing all radio astronomy initiatives and facilities in South Africa, inclu...
Visit ska.ac.zaWe analyzed Ska.ac.za page load time and found that the first response time was 785 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
ska.ac.za performance score
name
value
score
weighting
Value6.2 s
3/100
10%
Value11.5 s
0/100
25%
Value49.4 s
0/100
10%
Value400 ms
67/100
30%
Value0.001
100/100
15%
Value11.7 s
17/100
10%
785 ms
253 ms
502 ms
1016 ms
505 ms
Our browser made a total of 97 requests to load all elements on the main page. We found that 48% of them (47 requests) were addressed to the original Ska.ac.za, 20% (19 requests) were made to Static.xx.fbcdn.net and 15% (15 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Ska.ac.za.
Page size can be reduced by 397.6 kB (17%)
2.3 MB
2.0 MB
In fact, the total size of Ska.ac.za main page is 2.3 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 2.1 MB which makes up the majority of the site volume.
Potential reduce by 48.5 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. This page needs HTML code to be minified as it can gain 33.9 kB, which is 62% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 48.5 kB or 89% of the original size.
Potential reduce by 221.5 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. Obviously, Ska needs image optimization as it can save up to 221.5 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 119.8 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 119.8 kB or 67% of the original size.
Potential reduce by 7.8 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. Ska.ac.za needs all CSS files to be minified and compressed as it can save up to 7.8 kB or 81% of the original size.
Number of requests can be reduced by 31 (32%)
96
65
The browser has sent 96 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ska. 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 9 to 1 for CSS and as a result speed up the page load time.
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ska.ac.za 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-hidden="true"] elements contain focusable descendents
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
List items (<li>) are not contained within <ul> or <ol> parent elements.
ska.ac.za 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
ska.ac.za SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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 Ska.ac.za 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 Ska.ac.za 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.
ska.ac.za
Open Graph description is not detected on the main page of Ska. 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: