Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    82% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

woolworths.co.uk

Domain im Kundenauftrag registriert

Page Load Speed

33.9 sec in total

First Response

402 ms

Resources Loaded

26.9 sec

Page Rendered

6.6 sec

woolworths.co.uk screenshot

About Website

Click here to check amazing Woolworths content for United States. Otherwise, check out these important facts you probably never knew about woolworths.co.uk

Domain registriert bei united-domains.de

Visit woolworths.co.uk

Key Findings

We analyzed Woolworths.co.uk page load time and found that the first response time was 402 ms and then it took 33.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

woolworths.co.uk performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.7 s

100/100

25%

SI (Speed Index)

Value0.7 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

www.woolworths.co.uk

402 ms

www.very.co.uk

1004 ms

header.js

1193 ms

homeCombine8.js

1074 ms

speedtrapinsert.js

3052 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Woolworths.co.uk, 25% (15 requests) were made to Content.very.co.uk and 10% (6 requests) were made to Very.co.uk. The less responsive or slowest element that took the longest time to load (6.1 sec) relates to the external source Speedtrap.shopdirect.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.2 MB (48%)

Content Size

4.6 MB

After Optimization

2.4 MB

In fact, the total size of Woolworths.co.uk main page is 4.6 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. Javascripts take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 274.5 kB

  • Original 354.4 kB
  • After minification 338.9 kB
  • After compression 79.9 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 274.5 kB or 77% of the original size.

Image Optimization

-3%

Potential reduce by 43.8 kB

  • Original 1.6 MB
  • After minification 1.6 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. Woolworths images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 1.9 MB

  • Original 2.7 MB
  • After minification 2.7 MB
  • After compression 739.1 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 1.9 MB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (49%)

Requests Now

53

After Optimization

27

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Woolworths. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

woolworths.co.uk accessibility score

90

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

Links do not have a discernible name

Best Practices

woolworths.co.uk best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

woolworths.co.uk SEO score

67

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Woolworths.co.uk can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it does not match the claimed English language. Our system also found out that Woolworths.co.uk main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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