Report Summary

  • 20

    Performance

    Renders faster than
    40% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    47% of websites

  • 100

    SEO

    Google-friendlier than
    96% of websites

is.co.za

Accelerate digital transformation with Dimension Data and NTT

Page Load Speed

27.5 sec in total

First Response

1.5 sec

Resources Loaded

25.6 sec

Page Rendered

404 ms

is.co.za screenshot

About Website

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Key Findings

We analyzed Is.co.za page load time and found that the first response time was 1.5 sec and then it took 26 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. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

is.co.za performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value12.0 s

0/100

25%

SI (Speed Index)

Value9.3 s

12/100

10%

TBT (Total Blocking Time)

Value1,970 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0.128

82/100

15%

TTI (Time to Interactive)

Value13.2 s

12/100

10%

Network Requests Diagram

is.co.za

1533 ms

www.is.co.za

1931 ms

video-js.css

539 ms

Site.css

2565 ms

style.css

1280 ms

Our browser made a total of 107 requests to load all elements on the main page. We found that 44% of them (47 requests) were addressed to the original Is.co.za, 21% (22 requests) were made to Maps.google.com and 7% (7 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (19.6 sec) relates to the external source Freegeoip.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 795.8 kB (55%)

Content Size

1.5 MB

After Optimization

657.4 kB

In fact, the total size of Is.co.za 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. 60% of websites need less resources to load. Javascripts take 584.4 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 57.2 kB

  • Original 69.7 kB
  • After minification 62.7 kB
  • After compression 12.5 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 57.2 kB or 82% of the original size.

Image Optimization

-7%

Potential reduce by 31.0 kB

  • Original 456.5 kB
  • After minification 425.4 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. Is images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 401.7 kB

  • Original 584.4 kB
  • After minification 516.9 kB
  • After compression 182.7 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 401.7 kB or 69% of the original size.

CSS Optimization

-89%

Potential reduce by 305.9 kB

  • Original 342.6 kB
  • After minification 254.2 kB
  • After compression 36.7 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. Is.co.za needs all CSS files to be minified and compressed as it can save up to 305.9 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 57 (59%)

Requests Now

97

After Optimization

40

The browser has sent 97 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Is. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 35 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

is.co.za accessibility score

86

Accessibility Issues

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

High

Buttons do not have an accessible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

is.co.za best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

is.co.za SEO score

100

Search Engine Optimization Advices

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

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Is.co.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 Is.co.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.

Social Sharing Optimization

Open Graph description is not detected on the main page of Is. 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: