Tools & Wizards About Us
selfridges.co.uk screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

selfridges.co.uk

Designer Fashion, Accessories & More - Shop Online at Selfridges

Page Load Speed

3.3 sec in total

First Response

35 ms

Resources Loaded

1.5 sec

Page Rendered

1.8 sec

selfridges.co.uk screenshot

About Website

Visit selfridges.co.uk now to see the best up-to-date Selfridges content and also check out these interesting facts you probably never knew about selfridges.co.uk

Voted the best department store in the world, Selfridges has all the latest designer collections, must-have toys & gifts for all the family.

Visit selfridges.co.uk

Key Findings

We analyzed Selfridges.co.uk page load time and found that the first response time was 35 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

selfridges.co.uk performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

24/100

10%

LCP (Largest Contentful Paint)

Value11.5 s

0/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value1,520 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0.175

69/100

15%

TTI (Time to Interactive)

Value13.7 s

11/100

10%

Network Requests Diagram

selfridges.co.uk

35 ms

230 ms

named-register-6.8.3.js

20 ms

system.js

26 ms

amd.js

39 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Selfridges.co.uk, 57% (25 requests) were made to Images.selfridges.com and 27% (12 requests) were made to Selfridges.com. The less responsive or slowest element that took the longest time to load (756 ms) relates to the external source Images.selfridges.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 438.6 kB (32%)

Content Size

1.4 MB

After Optimization

919.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Selfridges.co.uk main page is 1.4 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. 45% of websites need less resources to load. Images take 797.0 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 438.0 kB

  • Original 504.8 kB
  • After minification 482.0 kB
  • After compression 66.8 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 438.0 kB or 87% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 797.0 kB
  • After minification 797.0 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. Selfridges images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 502 B

  • Original 54.8 kB
  • After minification 54.8 kB
  • After compression 54.3 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

-7%

Potential reduce by 127 B

  • Original 1.7 kB
  • After minification 1.7 kB
  • After compression 1.6 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. Selfridges.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 6 (17%)

Requests Now

35

After Optimization

29

  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Selfridges. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

selfridges.co.uk

selfridges.co.uk

35 ms

230 ms

named-register-6.8.3.js

named-register-6.8.3.js

20 ms

system.js

system.js

26 ms

amd.js

amd.js

39 ms

6F4D4C03_cx-mf-app-bundle.css

6F4D4C03_cx-mf-app-bundle.css

214 ms

retailercall.js

retailercall.js

51 ms

6F4D4C03_cx-mf-app-bundle.js

6F4D4C03_cx-mf-app-bundle.js

316 ms

utag.js

utag.js

27 ms

240724_HENNESY_MBA_MM_CS

240724_HENNESY_MBA_MM_CS

187 ms

sprite.svg

sprite.svg

220 ms

selfridges-logo.svg

selfridges-logo.svg

266 ms

240726_ZIMMERMANN_WW_MM_CS

240726_ZIMMERMANN_WW_MM_CS

129 ms

240815_MM_MENS

240815_MM_MENS

131 ms

240820_BAGS_MM_CS

240820_BAGS_MM_CS

110 ms

240821_UGG_SHOES_MM_CS_v2

240821_UGG_SHOES_MM_CS_v2

146 ms

240816_BEAUTY_MM_CONTENT_SPOT

240816_BEAUTY_MM_CONTENT_SPOT

128 ms

240817_KIDS_MM_CS

240817_KIDS_MM_CS

179 ms

240815_MM_HOME

240815_MM_HOME

138 ms

240816_SIR_DAVIS_MM_CS

240816_SIR_DAVIS_MM_CS

173 ms

240816_JEWELLERY_MM_CS

240816_JEWELLERY_MM_CS

146 ms

240613_FATHERS_DAY_SNAPBACK_TAG

240613_FATHERS_DAY_SNAPBACK_TAG

164 ms

240805_Teremana_MM_CONTENT_SPOT

240805_Teremana_MM_CONTENT_SPOT

195 ms

240209_PE_SNAPBACK_MM_CS

240209_PE_SNAPBACK_MM_CS

163 ms

240812_HENNESSY_HOMEPAGE_BANNER_MOBILE

240812_HENNESSY_HOMEPAGE_BANNER_MOBILE

318 ms

240816_HOMEPAGE_HERO_SLIDER_1_SPORTOPIA_M

240816_HOMEPAGE_HERO_SLIDER_1_SPORTOPIA_M

277 ms

240819_HOMEPAGE_EDITORIAL_TILE_1

240819_HOMEPAGE_EDITORIAL_TILE_1

267 ms

240819_HOMEPAGE_EDITORIAL_TILE_2

240819_HOMEPAGE_EDITORIAL_TILE_2

363 ms

240820_CLP_FOOD_BANNER_1_M

240820_CLP_FOOD_BANNER_1_M

510 ms

240819_HOMEPAGE_CORNER_SHOP_BANNER_BEAUTY_M

240819_HOMEPAGE_CORNER_SHOP_BANNER_BEAUTY_M

646 ms

230724_HP_MOBILE_BANNER_UNLOCKED_(1)

230724_HP_MOBILE_BANNER_UNLOCKED_(1)

367 ms

230108_RTV_HERO_TOP_REASONS_TO_VISIT_ASSET_UPDATE_HP_ASSET

230108_RTV_HERO_TOP_REASONS_TO_VISIT_ASSET_UPDATE_HP_ASSET

602 ms

2209_HP_Event_02

2209_HP_Event_02

756 ms

2209_HP_Event_03

2209_HP_Event_03

696 ms

2209_HP_Event_04

2209_HP_Event_04

468 ms

Marketing_Pop_Up_logo

Marketing_Pop_Up_logo

493 ms

Avalon-Demi-webfont_106a5b9c580740739e7b.woff

Avalon-Demi-webfont_106a5b9c580740739e7b.woff

45 ms

Avalon-Demi-webfont.woff

Avalon-Demi-webfont.woff

275 ms

DINNextLTW05-Light.woff

DINNextLTW05-Light.woff

309 ms

main.js

main.js

14 ms

sprite.svg

sprite.svg

61 ms

sprite.svg

sprite.svg

236 ms

sprite.svg

sprite.svg

15 ms

sprite.svg

sprite.svg

191 ms

Accessibility Review

selfridges.co.uk accessibility score

97

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

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

selfridges.co.uk best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

selfridges.co.uk SEO score

91

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

High

Tap targets are not sized appropriately

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 Selfridges.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 Selfridges.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

selfridges.co.uk

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