Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 0

    SEO

Page Load Speed

8.1 sec in total

First Response

147 ms

Resources Loaded

7.4 sec

Page Rendered

525 ms

savvis.co.uk screenshot

About Website

Welcome to savvis.co.uk homepage info - get ready to check Savvis best content right away, or after learning these important things about savvis.co.uk

Lumen is a global enterprise technology platform enabling companies to capitalise on emerging apps and the data powering modern business.

Visit savvis.co.uk

Key Findings

We analyzed Savvis.co.uk page load time and found that the first response time was 147 ms and then it took 7.9 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

savvis.co.uk performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.0 s

1/100

10%

LCP (Largest Contentful Paint)

Value14.4 s

0/100

25%

SI (Speed Index)

Value25.6 s

0/100

10%

TBT (Total Blocking Time)

Value11,900 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.214

58/100

15%

TTI (Time to Interactive)

Value38.5 s

0/100

10%

Network Requests Diagram

savvis.co.uk

147 ms

home.html

1661 ms

clientlib-base.min.337cd06fb3d98a1d31820c21b2e9afd5.css

327 ms

chi.css

44 ms

clientlib-onelink-en-us.min.af018eeefceb0398a7349e8597b0d19f.css

187 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Savvis.co.uk, 48% (39 requests) were made to Lumen.com and 38% (31 requests) were made to Assets.lumen.com. The less responsive or slowest element that took the longest time to load (2.5 sec) relates to the external source Lumen.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 783.0 kB (35%)

Content Size

2.2 MB

After Optimization

1.4 MB

In fact, the total size of Savvis.co.uk main page is 2.2 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. 80% 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 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-93%

Potential reduce by 626.9 kB

  • Original 677.7 kB
  • After minification 572.5 kB
  • After compression 50.7 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 105.2 kB, which is 16% 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 626.9 kB or 93% of the original size.

Image Optimization

-8%

Potential reduce by 97.1 kB

  • Original 1.2 MB
  • After minification 1.1 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. Savvis images are well optimized though.

JavaScript Optimization

-31%

Potential reduce by 58.4 kB

  • Original 188.2 kB
  • After minification 188.2 kB
  • After compression 129.8 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 58.4 kB or 31% of the original size.

CSS Optimization

-0%

Potential reduce by 548 B

  • Original 109.7 kB
  • After minification 109.7 kB
  • After compression 109.2 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. Savvis.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 26 (35%)

Requests Now

74

After Optimization

48

The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Savvis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

savvis.co.uk accessibility score

76

Accessibility Issues

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

High

[aria-hidden="true"] elements contain focusable descendents

High

[aria-*] attributes do not have valid values

High

ARIA IDs are not unique

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.

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

High

Links do not have a discernible name

Best Practices

savvis.co.uk best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

savvis.co.uk SEO score

0

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 Savvis.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 Savvis.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 description is not detected on the main page of Savvis. 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: