Tools & Wizards About Us
birkenstock.com screenshot

Report Summary

  • 2

    Performance

    Renders faster than
    19% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

birkenstock.com

BIRKENSTOCK USA Online Shop

Page Load Speed

1.8 sec in total

First Response

263 ms

Resources Loaded

1.4 sec

Page Rendered

152 ms

birkenstock.com screenshot

About Website

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

Welcome to the official BIRKENSTOCK USA online shop ✓ Comfortable and stylish quality sandals and shoes ✓ Free shipping & returns ✓ Largest online selection ✓ All styles and colors

Visit birkenstock.com

Key Findings

We analyzed Birkenstock.com page load time and found that the first response time was 263 ms and then it took 1.6 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

birkenstock.com performance score

2

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

8/100

10%

LCP (Largest Contentful Paint)

Value20.4 s

0/100

25%

SI (Speed Index)

Value19.2 s

0/100

10%

TBT (Total Blocking Time)

Value14,090 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.805

5/100

15%

TTI (Time to Interactive)

Value34.2 s

0/100

10%

Network Requests Diagram

birkenstock.com

263 ms

screen.min.css

101 ms

jquery.min.js

30 ms

modernizr.min.js

181 ms

basis.min.js

231 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 95% of them (19 requests) were addressed to the original Birkenstock.com, 5% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (433 ms) belongs to the original domain Birkenstock.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 24.1 kB (9%)

Content Size

255.1 kB

After Optimization

231.0 kB

  • HTML
  • Images

In fact, the total size of Birkenstock.com main page is 255.1 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. 25% of websites need less resources to load. Images take 227.7 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 22.2 kB

  • Original 27.3 kB
  • After minification 26.6 kB
  • After compression 5.2 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 22.2 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 1.9 kB

  • Original 227.7 kB
  • After minification 225.8 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. BIRKENSTOCK images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 4 (24%)

Requests Now

17

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 17 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 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

birkenstock.com

birkenstock.com

263 ms

screen.min.css

screen.min.css

101 ms

jquery.min.js

jquery.min.js

30 ms

modernizr.min.js

modernizr.min.js

181 ms

basis.min.js

basis.min.js

231 ms

jquery.easing.js

jquery.easing.js

259 ms

camera.js

camera.js

259 ms

de.png

de.png

259 ms

logo.png

logo.png

259 ms

reparaturservice.jpg

reparaturservice.jpg

358 ms

komfort.jpg

komfort.jpg

378 ms

weichbettung.jpg

weichbettung.jpg

379 ms

links.png

links.png

100 ms

rechts.png

rechts.png

100 ms

camera-loader.gif

camera-loader.gif

98 ms

undefined

undefined

136 ms

Slider_HW15_EN.jpg

Slider_HW15_EN.jpg

433 ms

20007504-6ea2-4d68-93e4-f4769b5d9f14.woff

20007504-6ea2-4d68-93e4-f4769b5d9f14.woff

346 ms

www.birkenstock.com

www.birkenstock.com

354 ms

Slider_Socken_HW15_EN.jpg

Slider_Socken_HW15_EN.jpg

381 ms

Accessibility Review

birkenstock.com accessibility score

83

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

High

Some elements have a [tabindex] value greater than 0

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

birkenstock.com 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

birkenstock.com SEO score

79

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

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 Birkenstock.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 Birkenstock.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

birkenstock.com

Open Graph description is not detected on the main page of BIRKENSTOCK. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: