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rakuten.co.uk screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

rakuten.co.uk

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Page Load Speed

1.7 sec in total

First Response

268 ms

Resources Loaded

1.3 sec

Page Rendered

65 ms

rakuten.co.uk screenshot

About Website

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Key Findings

We analyzed Rakuten.co.uk page load time and found that the first response time was 268 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

rakuten.co.uk performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

58/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value6,830 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.03

100/100

15%

TTI (Time to Interactive)

Value23.3 s

1/100

10%

Network Requests Diagram

browser-not-supported.htm

268 ms

soj2.js

290 ms

soj2.js

388 ms

ebates-rebrand-d6d3ea0059.css

15 ms

jquery-1.10.3.min.js

9 ms

Our browser made a total of 21 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Rakuten.co.uk, 10% (2 requests) were made to Static.ebates.com and 10% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (466 ms) relates to the external source Rakuten.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 598.4 kB (73%)

Content Size

824.7 kB

After Optimization

226.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rakuten.co.uk main page is 824.7 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. 30% of websites need less resources to load. HTML takes 345.8 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 251.8 kB

  • Original 345.8 kB
  • After minification 345.1 kB
  • After compression 94.0 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 251.8 kB or 73% of the original size.

Image Optimization

-38%

Potential reduce by 4.6 kB

  • Original 12.1 kB
  • After minification 7.5 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. Obviously, Rakuten needs image optimization as it can save up to 4.6 kB or 38% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-45%

Potential reduce by 62.6 kB

  • Original 139.0 kB
  • After minification 139.0 kB
  • After compression 76.5 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 62.6 kB or 45% of the original size.

CSS Optimization

-85%

Potential reduce by 279.5 kB

  • Original 327.8 kB
  • After minification 327.3 kB
  • After compression 48.3 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. Rakuten.co.uk needs all CSS files to be minified and compressed as it can save up to 279.5 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (61%)

Requests Now

18

After Optimization

7

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rakuten. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

browser-not-supported.htm

browser-not-supported.htm

268 ms

soj2.js

soj2.js

290 ms

soj2.js

soj2.js

388 ms

ebates-rebrand-d6d3ea0059.css

ebates-rebrand-d6d3ea0059.css

15 ms

jquery-1.10.3.min.js

jquery-1.10.3.min.js

9 ms

ebates-main-eb41c1a8a1.js

ebates-main-eb41c1a8a1.js

8 ms

stats-826c197f34.js

stats-826c197f34.js

19 ms

54KFS-CS4FL-8NDR3-XGWC2-WDXJC

54KFS-CS4FL-8NDR3-XGWC2-WDXJC

77 ms

rakuten_nav_solid.svg

rakuten_nav_solid.svg

99 ms

warning.png

warning.png

119 ms

analytics.js

analytics.js

52 ms

gtm.js

gtm.js

90 ms

jail.fixed.0.9.5.min.js

jail.fixed.0.9.5.min.js

19 ms

datadog-logs-us.js

datadog-logs-us.js

38 ms

RakutenSansUI_W_Rg.woff

RakutenSansUI_W_Rg.woff

13 ms

Stag-Medium-Web.woff

Stag-Medium-Web.woff

26 ms

soj2.js

soj2.js

466 ms

browser-not-supported.htm

browser-not-supported.htm

239 ms

config.json

config.json

45 ms

linkid.js

linkid.js

7 ms

publisher:getClientId

publisher:getClientId

160 ms

Accessibility Review

rakuten.co.uk accessibility score

86

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

rakuten.co.uk best practices score

83

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

rakuten.co.uk SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

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

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 Rakuten.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 Rakuten.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

rakuten.co.uk

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