Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 0

    Best Practices

  • 85

    SEO

    Google-friendlier than
    55% of websites

groupon.cz

Groupon® Official Site - Find Local Deals Near You

Page Load Speed

3.6 sec in total

First Response

1.1 sec

Resources Loaded

1.6 sec

Page Rendered

903 ms

groupon.cz screenshot

About Website

Click here to check amazing Groupon content. Otherwise, check out these important facts you probably never knew about groupon.cz

Save up to 70% on 1,000s of local restaurants, shopping, events & more. Find great deals on the best activities & things to do. Download the Groupon App today.

Visit groupon.cz

Key Findings

We analyzed Groupon.cz page load time and found that the first response time was 1.1 sec and then it took 2.5 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

groupon.cz performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

69/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

60/100

25%

SI (Speed Index)

Value14.6 s

1/100

10%

TBT (Total Blocking Time)

Value14,510 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.145

77/100

15%

TTI (Time to Interactive)

Value30.2 s

0/100

10%

Network Requests Diagram

www.groupon.com

1113 ms

desktop-grpn-v7.0-f61de4e641.css

40 ms

home_desktop-81eb87f68c.css

61 ms

c349x211q85.jpg

234 ms

OpenSansRegular-5d230f5569.woff

42 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Groupon.cz, 30% (7 requests) were made to Img.grouponcdn.com and 22% (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.

Page Optimization Overview & Recommendations

Page size can be reduced by 191.5 kB (45%)

Content Size

425.6 kB

After Optimization

234.0 kB

In fact, the total size of Groupon.cz main page is 425.6 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. 35% of websites need less resources to load. HTML takes 231.7 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 191.5 kB

  • Original 231.7 kB
  • After minification 210.7 kB
  • After compression 40.1 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 191.5 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 5 B

  • Original 140.8 kB
  • After minification 140.8 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. Groupon images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 53.0 kB
  • After minification 53.0 kB
  • After compression 53.0 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 3 (18%)

Requests Now

17

After Optimization

14

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 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 Review

groupon.cz accessibility score

84

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

SEO Factors

groupon.cz SEO score

85

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

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 Groupon.cz 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 Groupon.cz 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 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: