Tools & Wizards About Us
birkenstock.co.uk screenshot

Report Summary

  • 11

    Performance

    Renders faster than
    24% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

birkenstock.co.uk

Sandals, Shoes & Clogs | BIRKENSTOCK United Kingdom

Page Load Speed

2.8 sec in total

First Response

314 ms

Resources Loaded

1.9 sec

Page Rendered

603 ms

birkenstock.co.uk screenshot

About Website

Welcome to birkenstock.co.uk homepage info - get ready to check BIRKENSTOCK best content for United Kingdom right away, or after learning these important things about birkenstock.co.uk

Discover BIRKENSTOCK sandals, shoes & clogs in United Kingdom. Timeless design, unmatched comfort, and premium quality. Shop the official online store now.

Visit birkenstock.co.uk

Key Findings

We analyzed Birkenstock.co.uk page load time and found that the first response time was 314 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

birkenstock.co.uk performance score

11

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

10/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

11/100

25%

SI (Speed Index)

Value14.1 s

1/100

10%

TBT (Total Blocking Time)

Value5,190 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.262

47/100

15%

TTI (Time to Interactive)

Value21.5 s

1/100

10%

Network Requests Diagram

gb

314 ms

api_dynamic.js

42 ms

api_static.js

71 ms

bsd-cms-5068-84.css

65 ms

build.min.js

162 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Birkenstock.co.uk, 28% (11 requests) were made to Birkenstock.com and 10% (4 requests) were made to Unpkg.com. The less responsive or slowest element that took the longest time to load (762 ms) relates to the external source Helios.production.bsd.coremedia.cloud.

Page Optimization Overview & Recommendations

Page size can be reduced by 217.7 kB (34%)

Content Size

631.2 kB

After Optimization

413.5 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Birkenstock.co.uk main page is 631.2 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. Javascripts take 367.7 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 203.7 kB

  • Original 245.6 kB
  • After minification 245.3 kB
  • After compression 41.9 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 203.7 kB or 83% of the original size.

Image Optimization

-2%

Potential reduce by 425 B

  • Original 17.8 kB
  • After minification 17.4 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. BIRKENSTOCK images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 13.5 kB

  • Original 367.7 kB
  • After minification 367.7 kB
  • After compression 354.2 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.

Requests Breakdown

Number of requests can be reduced by 16 (46%)

Requests Now

35

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BIRKENSTOCK. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

gb

gb

314 ms

api_dynamic.js

api_dynamic.js

42 ms

api_static.js

api_static.js

71 ms

bsd-cms-5068-84.css

bsd-cms-5068-84.css

65 ms

build.min.js

build.min.js

162 ms

birkenstock_WmsgQt.js

birkenstock_WmsgQt.js

62 ms

homepage.js

homepage.js

180 ms

commons-479708-2.js

commons-479708-2.js

58 ms

bsd-cms-5072-51.js

bsd-cms-5072-51.js

58 ms

widget.module.min.js

widget.module.min.js

117 ms

widget.polyfilled.min.js

widget.polyfilled.min.js

118 ms

dwanalytics-22.2.js

dwanalytics-22.2.js

261 ms

dwac-21.7.js

dwac-21.7.js

119 ms

gretel.min.js

gretel.min.js

58 ms

applepay.js

applepay.js

179 ms

gtm.js

gtm.js

183 ms

-ymk-lemontea-2023-08-28-4148897432.webp

-ymk-lemontea-2023-08-28-4148897432.webp

404 ms

logo.svg

logo.svg

31 ms

flyout-arrow-down.svg

flyout-arrow-down.svg

15 ms

Evri_logo_RGB_Colour.png

Evri_logo_RGB_Colour.png

12 ms

simonakovacova-2023-07-25-4144892195.webp

simonakovacova-2023-07-25-4144892195.webp

388 ms

teresathuy-2022-04-12-3970893236.webp

teresathuy-2022-04-12-3970893236.webp

308 ms

benvanrooy-2024-01-15-4169801468.webp

benvanrooy-2024-01-15-4169801468.webp

385 ms

ishabhansali-2020-11-27-3714733690-2-.webp

ishabhansali-2020-11-27-3714733690-2-.webp

298 ms

-ymk-lemontea-2023-08-28-4148897432.webp

-ymk-lemontea-2023-08-28-4148897432.webp

667 ms

simonakovacova-2023-07-25-4144892195.webp

simonakovacova-2023-07-25-4144892195.webp

683 ms

teresathuy-2022-04-12-3970893236.webp

teresathuy-2022-04-12-3970893236.webp

588 ms

benvanrooy-2024-01-15-4169801468.webp

benvanrooy-2024-01-15-4169801468.webp

762 ms

ishabhansali-2020-11-27-3714733690-2-.webp

ishabhansali-2020-11-27-3714733690-2-.webp

487 ms

DINNextW05-Regular.woff

DINNextW05-Regular.woff

33 ms

DINNextW05-Medium.woff

DINNextW05-Medium.woff

145 ms

DINNextW05-Bold.woff

DINNextW05-Bold.woff

104 ms

topseller

topseller

159 ms

recently-viewed

recently-viewed

160 ms

9c9b073d12349c2c8472e025cb1c3312

9c9b073d12349c2c8472e025cb1c3312

247 ms

web-vitals.iife.js

web-vitals.iife.js

41 ms

web-vitals.iife.js

web-vitals.iife.js

26 ms

9c9b073d12349c2c8472e025cb1c3312

9c9b073d12349c2c8472e025cb1c3312

175 ms

build.min.css

build.min.css

3 ms

2187545246

2187545246

56 ms

Accessibility Review

birkenstock.co.uk accessibility score

70

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

ARIA IDs are not unique

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

birkenstock.co.uk best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

birkenstock.co.uk SEO score

86

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

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 Birkenstock.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 Birkenstock.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

birkenstock.co.uk

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