6.3 sec in total
432 ms
5.1 sec
817 ms
Welcome to shop.o2.co.uk homepage info - get ready to check Shop O2 best content for United Kingdom right away, or after learning these important things about shop.o2.co.uk
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Visit shop.o2.co.ukWe analyzed Shop.o2.co.uk page load time and found that the first response time was 432 ms and then it took 5.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
shop.o2.co.uk performance score
name
value
score
weighting
Value7.4 s
1/100
10%
Value12.4 s
0/100
25%
Value8.4 s
19/100
10%
Value950 ms
29/100
30%
Value0.258
48/100
15%
Value16.7 s
5/100
10%
432 ms
643 ms
29 ms
239 ms
177 ms
Our browser made a total of 151 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Shop.o2.co.uk, 50% (75 requests) were made to O2.co.uk and 11% (17 requests) were made to Staticshop.o2.co.uk. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source O2.co.uk.
Page size can be reduced by 1.3 MB (55%)
2.3 MB
1.0 MB
In fact, the total size of Shop.o2.co.uk main page is 2.3 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. 65% of websites need less resources to load. HTML takes 932.1 kB which makes up the majority of the site volume.
Potential reduce by 807.9 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 807.9 kB or 87% of the original size.
Potential reduce by 55.3 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. Shop O2 images are well optimized though.
Potential reduce by 371.8 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 371.8 kB or 64% of the original size.
Potential reduce by 27.7 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. Shop.o2.co.uk needs all CSS files to be minified and compressed as it can save up to 27.7 kB or 85% of the original size.
Number of requests can be reduced by 68 (48%)
142
74
The browser has sent 142 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Shop O2. 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 6 to 1 for CSS and as a result speed up the page load time.
shop.o2.co.uk
432 ms
shop
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satelliteLib-0f7d9589551ed7071db2509e1b92aadeff17ecd3.js
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shop.o2.co.uk accessibility score
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
button, link, and menuitem elements do not have accessible names.
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
Definition list items are not wrapped in <dl> elements
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Some elements have a [tabindex] value greater than 0
shop.o2.co.uk 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
Missing source maps for large first-party JavaScript
shop.o2.co.uk SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
Document uses legible font sizes
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Shop.o2.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 Shop.o2.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.
shop.o2.co.uk
Open Graph description is not detected on the main page of Shop O2. 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: