18.4 sec in total
883 ms
17.1 sec
372 ms
Welcome to science.sun.ac.za homepage info - get ready to check Science Sun best content for South Africa right away, or after learning these important things about science.sun.ac.za
Visit science.sun.ac.zaWe analyzed Science.sun.ac.za page load time and found that the first response time was 883 ms and then it took 17.5 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
science.sun.ac.za performance score
name
value
score
weighting
Value8.8 s
0/100
10%
Value12.9 s
0/100
25%
Value16.1 s
0/100
10%
Value480 ms
59/100
30%
Value0.572
12/100
15%
Value19.9 s
2/100
10%
883 ms
1068 ms
2789 ms
1334 ms
798 ms
Our browser made a total of 87 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Science.sun.ac.za, 95% (83 requests) were made to Sun.ac.za and 1% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (8 sec) relates to the external source Sun.ac.za.
Page size can be reduced by 1.7 MB (30%)
5.9 MB
4.2 MB
In fact, the total size of Science.sun.ac.za main page is 5.9 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 3.9 MB which makes up the majority of the site volume.
Potential reduce by 114.2 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 114.2 kB or 81% of the original size.
Potential reduce by 301.2 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 Sun images are well optimized though.
Potential reduce by 963.0 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 963.0 kB or 71% of the original size.
Potential reduce by 360.8 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. Science.sun.ac.za needs all CSS files to be minified and compressed as it can save up to 360.8 kB or 79% of the original size.
Number of requests can be reduced by 45 (54%)
83
38
The browser has sent 83 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science Sun. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
science.sun.ac.za
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science
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science.sun.ac.za accessibility score
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
Image elements do not have [alt] attributes
Links do not have a discernible name
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
science.sun.ac.za 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
science.sun.ac.za 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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Science.sun.ac.za 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 Science.sun.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.
science.sun.ac.za
Open Graph description is not detected on the main page of Science Sun. 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: