Tools & Wizards About Us

Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

deliveroo.uk

Deliveroo - Takeaway Food Delivery from Local Restaurants & Shops

Page Load Speed

4.1 sec in total

First Response

245 ms

Resources Loaded

3.4 sec

Page Rendered

438 ms

About Website

Click here to check amazing Deliveroo content. Otherwise, check out these important facts you probably never knew about deliveroo.uk

We deliver your takeouts or essential groceries from the best-rated local partners straight to your door. Download our app or order online. Food. We Get It.

Visit deliveroo.uk

Key Findings

We analyzed Deliveroo.uk page load time and found that the first response time was 245 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

deliveroo.uk performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value17.1 s

0/100

25%

SI (Speed Index)

Value11.0 s

6/100

10%

TBT (Total Blocking Time)

Value2,010 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.415

23/100

15%

TTI (Time to Interactive)

Value16.7 s

5/100

10%

Network Requests Diagram

deliveroo.uk

245 ms

deliveroo.co.uk

53 ms

deliveroo.co.uk

821 ms

gtm.js

106 ms

consumer-component-library.vars-less.css

63 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Deliveroo.uk, 57% (38 requests) were made to Cwa.roocdn.com and 13% (9 requests) were made to Cdn.cookielaw.org. The less responsive or slowest element that took the longest time to load (2 sec) relates to the external source Polyfill-fastly.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 484.6 kB (29%)

Content Size

1.7 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Deliveroo.uk main page is 1.7 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. Javascripts take 785.9 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 222.3 kB

  • Original 286.6 kB
  • After minification 286.6 kB
  • After compression 64.3 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 222.3 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 291.8 kB
  • After minification 291.8 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. Deliveroo images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 9.0 kB

  • Original 785.9 kB
  • After minification 785.9 kB
  • After compression 776.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-78%

Potential reduce by 253.3 kB

  • Original 323.2 kB
  • After minification 322.5 kB
  • After compression 69.8 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. Deliveroo.uk needs all CSS files to be minified and compressed as it can save up to 253.3 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 41 (67%)

Requests Now

61

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Deliveroo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

deliveroo.uk accessibility score

89

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

Best Practices

deliveroo.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

deliveroo.uk SEO score

85

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

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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 Deliveroo.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 Deliveroo.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 Deliveroo. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: