Access cs-europe.groupon.com. Groupon® Official Site

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

43/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

9/100

25%

SI (Speed Index)

Value31.1 s

0/100

10%

TBT (Total Blocking Time)

Value50,840 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.138

79/100

15%

TTI (Time to Interactive)

Value65.6 s

0/100

10%

cs-europe.groupon.com

192 ms

www.groupon.com

1135 ms

desktop-grpn-v7.0-f61de4e641.css

289 ms

home_desktop-23f965fd8e.css

280 ms

bottom_banner_pp-a936af7abe.css

252 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that 6% of them (1 request) were addressed to the original Cs-europe.groupon.com, 50% (9 requests) were made to Www2.grouponcdn.com and 28% (5 requests) were made to Www1.grouponcdn.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Groupon.com.

Content Size

267.6 kB

After Optimization

83.5 kB

In fact, the total size of Cs-europe.groupon.com main page is 267.6 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. HTML takes 222.6 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 184.1 kB

Original 222.6 kB
After minification 202.9 kB
After compression 38.4 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 184.1 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 5 B

Original 45.0 kB
After minification 45.0 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. Cs Europe Groupon images are well optimized though.

Requests Now

After Optimization

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cs Europe Groupon. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

[aria-*] attributes do not match their roles

High

button, link, and menuitem elements do not have accessible names.

High

[role] values are not valid

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

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.

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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/).

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 Cs-europe.groupon.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 Cs-europe.groupon.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

Open Graph description is not detected on the main page of Cs Europe Groupon. 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: