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name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value3.4 s

67/100

25%

SI (Speed Index)

Value9.6 s

11/100

10%

TBT (Total Blocking Time)

Value9,170 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value23.5 s

1/100

10%

www.mattressonline.co.uk

1122 ms

063cdecc6debe521.css

264 ms

polyfills-78c92fac7aa8fdd8.js

365 ms

webpack-b1a036f4d7598f0d.js

322 ms

main-9ea296956a2e1168.js

467 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Secure.mattressonline.co.uk, 13% (12 requests) were made to Mattressonline.co.uk. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Mattressonline.co.uk.

Content Size

869.0 kB

After Optimization

480.1 kB

In fact, the total size of Secure.mattressonline.co.uk main page is 869.0 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 45% of websites need less resources to load. Images take 450.5 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 368.2 kB

Original 418.5 kB
After minification 418.1 kB
After compression 50.3 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 368.2 kB or 88% of the original size.

Image Optimization

-5%

Potential reduce by 20.8 kB

Original 450.5 kB
After minification 429.7 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. Secure Mattress Online images are well optimized though.

Requests Now

After Optimization

The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Secure Mattress Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

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

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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/).

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 Secure.mattressonline.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 Secure.mattressonline.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 Secure Mattress Online. 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: