Report Summary

  • 18

    Performance

    Renders faster than
    35% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 85% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 86

    SEO

    Google-friendlier than
    61% of websites

sky.co.uk

Sky - Discover TV, Broadband & Mobile packages | Sky.com

Page Load Speed

8.7 sec in total

First Response

278 ms

Resources Loaded

6.7 sec

Page Rendered

1.8 sec

sky.co.uk screenshot

About Website

Visit sky.co.uk now to see the best up-to-date Sky content for United Kingdom and also check out these interesting facts you probably never knew about sky.co.uk

Discover Sky packages on TV, broadband & mobile including Glass - the new streaming TV with Sky Inside. Login & manage your My Sky account & more.

Visit sky.co.uk

Key Findings

We analyzed Sky.co.uk page load time and found that the first response time was 278 ms and then it took 8.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

sky.co.uk performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

26/100

10%

LCP (Largest Contentful Paint)

Value10.2 s

0/100

25%

SI (Speed Index)

Value14.9 s

1/100

10%

TBT (Total Blocking Time)

Value3,560 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.018

100/100

15%

TTI (Time to Interactive)

Value22.8 s

1/100

10%

Network Requests Diagram

sky.co.uk

278 ms

www.sky.com

1015 ms

satelliteLib-a1f1bc0877f6b3ba177bdbdeb497f637d491dfcd.js

44 ms

toolkit-core.min.css

899 ms

masthead.css

168 ms

Our browser made a total of 109 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Sky.co.uk, 24% (26 requests) were made to Static.skyassets.com and 14% (15 requests) were made to Dpm.demdex.net. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source Dm8eklel4s62k.cloudfront.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 515.4 kB (21%)

Content Size

2.4 MB

After Optimization

1.9 MB

In fact, the total size of Sky.co.uk main page is 2.4 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 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 84.3 kB

  • Original 109.9 kB
  • After minification 106.4 kB
  • After compression 25.6 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 84.3 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 6.8 kB

  • Original 1.7 MB
  • After minification 1.7 MB

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. Sky images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 392.9 kB

  • Original 578.4 kB
  • After minification 574.2 kB
  • After compression 185.5 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 392.9 kB or 68% of the original size.

CSS Optimization

-86%

Potential reduce by 31.4 kB

  • Original 36.4 kB
  • After minification 35.8 kB
  • After compression 5.0 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. Sky.co.uk needs all CSS files to be minified and compressed as it can save up to 31.4 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 58 (59%)

Requests Now

98

After Optimization

40

The browser has sent 98 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sky. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 34 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

sky.co.uk accessibility score

94

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

Image elements do not have [alt] attributes

Best Practices

sky.co.uk best practices score

83

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

Page has valid source maps

SEO Factors

sky.co.uk SEO score

86

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

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

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 Sky.co.uk 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 Sky.co.uk 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 data is detected on the main page of Sky. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: