Tools & Wizards About Us
us.asos.com screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

us.asos.com

ASOS | Online shopping for the Latest Clothes & Fashion

Page Load Speed

2.5 sec in total

First Response

176 ms

Resources Loaded

2.2 sec

Page Rendered

152 ms

us.asos.com screenshot

About Website

Welcome to us.asos.com homepage info - get ready to check Us ASOS best content for United Kingdom right away, or after learning these important things about us.asos.com

Free Delivery on orders over $40! Discover the latest in men's fashion and women's clothing online & shop from over 40,000 styles with ASOS.

Visit us.asos.com

Key Findings

We analyzed Us.asos.com page load time and found that the first response time was 176 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

us.asos.com performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value11.0 s

0/100

25%

SI (Speed Index)

Value7.5 s

26/100

10%

TBT (Total Blocking Time)

Value5,860 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.15

76/100

15%

TTI (Time to Interactive)

Value23.7 s

1/100

10%

Network Requests Diagram

176 ms

client.newrelicclient.7d1924858db4563d10df.js

100 ms

vendors.7066a9f385c04a3ae6f5.css

111 ms

client.sitechrome.styles.5e1a24317184f1ea8c00.css

144 ms

content-ui-library-4.9.3.css

225 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Us.asos.com, 17% (9 requests) were made to Images.asos-media.com and 6% (3 requests) were made to Content.asos-media.com. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Content.asos-media.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 364.2 kB (45%)

Content Size

812.3 kB

After Optimization

448.2 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Us.asos.com main page is 812.3 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. 55% of websites need less resources to load. Images take 335.7 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 213.4 kB

  • Original 255.0 kB
  • After minification 252.7 kB
  • After compression 41.6 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 213.4 kB or 84% of the original size.

Image Optimization

-4%

Potential reduce by 13.7 kB

  • Original 335.7 kB
  • After minification 322.1 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. Us ASOS images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 137.1 kB

  • Original 221.6 kB
  • After minification 220.8 kB
  • After compression 84.5 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 137.1 kB or 62% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (39%)

Requests Now

51

After Optimization

31

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Us ASOS. 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.

Network Requests Diagram

176 ms

client.newrelicclient.7d1924858db4563d10df.js

client.newrelicclient.7d1924858db4563d10df.js

100 ms

vendors.7066a9f385c04a3ae6f5.css

vendors.7066a9f385c04a3ae6f5.css

111 ms

client.sitechrome.styles.5e1a24317184f1ea8c00.css

client.sitechrome.styles.5e1a24317184f1ea8c00.css

144 ms

content-ui-library-4.9.3.css

content-ui-library-4.9.3.css

225 ms

windowManifest.js

windowManifest.js

293 ms

featuresManifest.js

featuresManifest.js

104 ms

require.7c30e08a.js

require.7c30e08a.js

105 ms

jquery.742e47af.js

jquery.742e47af.js

108 ms

uuid.76892287.js

uuid.76892287.js

111 ms

shared-libs-3.0.13.min.js

shared-libs-3.0.13.min.js

162 ms

client.sitechrome.ddb64af4ad149f0d6723.js

client.sitechrome.ddb64af4ad149f0d6723.js

373 ms

translations.6cff30bac81e95077e4f.js

translations.6cff30bac81e95077e4f.js

153 ms

vendors.6de2fda071e2404feef3.js

vendors.6de2fda071e2404feef3.js

330 ms

client.sitechrome.styles.b2bde4c1350ebc1e388c.js

client.sitechrome.styles.b2bde4c1350ebc1e388c.js

329 ms

client.sitechrome.deferred.2c9b4b457e52edb29376.js

client.sitechrome.deferred.2c9b4b457e52edb29376.js

328 ms

sdk.3.1.2.min.js

sdk.3.1.2.min.js

321 ms

bag-sdk-8.0.457.min.js

bag-sdk-8.0.457.min.js

328 ms

browser.es5.f558b4d3.js

browser.es5.f558b4d3.js

341 ms

saved-items-sdk.iife.6cb57967.js

saved-items-sdk.iife.6cb57967.js

399 ms

cx-nrelic.js

cx-nrelic.js

90 ms

homepage.sitechrome.js

homepage.sitechrome.js

37 ms

content-ui-library-4.9.3.js

content-ui-library-4.9.3.js

666 ms

fEhzPQY

fEhzPQY

158 ms

KEKMC-5QPEH-Y5FHE-8AH54-JDSN3

KEKMC-5QPEH-Y5FHE-8AH54-JDSN3

106 ms

asos_march_generic-hp_desktop.jpg

asos_march_generic-hp_desktop.jpg

1664 ms

visa-png

visa-png

130 ms

us.png

us.png

76 ms

gb.png

gb.png

75 ms

es.png

es.png

96 ms

de.png

de.png

96 ms

au.png

au.png

96 ms

fr.png

fr.png

99 ms

dk.png

dk.png

99 ms

it.png

it.png

98 ms

nl.png

nl.png

127 ms

pl.png

pl.png

100 ms

se.png

se.png

100 ms

premier.svg

premier.svg

1687 ms

student.svg

student.svg

1679 ms

mastercard-png

mastercard-png

132 ms

pay-pal-png

pay-pal-png

145 ms

american-express-png

american-express-png

143 ms

klarna-gb-png

klarna-gb-png

144 ms

apple-pay-png

apple-pay-png

145 ms

afterpay_new-png

afterpay_new-png

153 ms

discover-card-png

discover-card-png

146 ms

diners-club-png

diners-club-png

155 ms

rd

rd

4 ms

dest5.html

dest5.html

30 ms

config.json

config.json

70 ms

ibs:dpid=411&dpuuid=Zlhg_wAAAG_RqwN2

ibs:dpid=411&dpuuid=Zlhg_wAAAG_RqwN2

6 ms

Accessibility Review

us.asos.com accessibility score

88

Accessibility Issues

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.

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

Image elements do not have [alt] attributes

Best Practices

us.asos.com 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

us.asos.com SEO score

86

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

High

Image elements do not have [alt] attributes

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 Us.asos.com 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 Us.asos.com 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

us.asos.com

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