Tools & Wizards About Us
holidaycheck.cz screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

holidaycheck.cz

HolidayCheck • Ihr Hotelbewertungs- und Reiseportal

Page Load Speed

4.2 sec in total

First Response

293 ms

Resources Loaded

3.3 sec

Page Rendered

612 ms

holidaycheck.cz screenshot

About Website

Click here to check amazing Holiday Check content for Czech Republic. Otherwise, check out these important facts you probably never knew about holidaycheck.cz

Beim Testsieger HolidayCheck Hotels vergleichen & günstig buchen ✓ 11 Mio. Hotelbewertungen ✓ Preisvergleich von 100 Reiseveranstaltern ✓ Bestpreis-Garantie » jetzt buchen

Visit holidaycheck.cz

Key Findings

We analyzed Holidaycheck.cz page load time and found that the first response time was 293 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

holidaycheck.cz performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

54/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

35/100

25%

SI (Speed Index)

Value7.7 s

24/100

10%

TBT (Total Blocking Time)

Value11,340 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.024

100/100

15%

TTI (Time to Interactive)

Value24.8 s

0/100

10%

Network Requests Diagram

holidaycheck.cz

293 ms

www.holidaycheck.cz

257 ms

www.holidaycheck.de

170 ms

ads.css

127 ms

userflow.css

154 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 4% of them (2 requests) were addressed to the original Holidaycheck.cz, 57% (32 requests) were made to Holidaycheck.de and 21% (12 requests) were made to Images.ctfassets.net. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source Holidaycheck.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (59%)

Content Size

2.0 MB

After Optimization

830.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Holidaycheck.cz main page is 2.0 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 65% of websites need less resources to load. Javascripts take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 322.5 kB

  • Original 377.3 kB
  • After minification 377.0 kB
  • After compression 54.8 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 322.5 kB or 85% of the original size.

Image Optimization

-4%

Potential reduce by 11.4 kB

  • Original 318.4 kB
  • After minification 307.0 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. Holiday Check images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 861.0 kB

  • Original 1.3 MB
  • After minification 1.3 MB
  • After compression 463.3 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 861.0 kB or 65% of the original size.

CSS Optimization

-39%

Potential reduce by 3.3 kB

  • Original 8.3 kB
  • After minification 7.0 kB
  • After compression 5.0 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Holidaycheck.cz needs all CSS files to be minified and compressed as it can save up to 3.3 kB or 39% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (54%)

Requests Now

46

After Optimization

21

  • Images
  • JavaScript
  • CSS

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Holiday Check. 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

holidaycheck.cz

holidaycheck.cz

293 ms

www.holidaycheck.cz

www.holidaycheck.cz

257 ms

www.holidaycheck.de

www.holidaycheck.de

170 ms

ads.css

ads.css

127 ms

userflow.css

userflow.css

154 ms

ads.js

ads.js

259 ms

header.053d76e7df0e22acbc85.css

header.053d76e7df0e22acbc85.css

167 ms

polyfill.min.js

polyfill.min.js

149 ms

client.js

client.js

142 ms

client.js

client.js

256 ms

header.es6.536fac25ff5a583b84ea.js

header.es6.536fac25ff5a583b84ea.js

1654 ms

header.es5.a29e9b31d0cf7460e37a.js

header.es5.a29e9b31d0cf7460e37a.js

1749 ms

polyfill.min.js

polyfill.min.js

1745 ms

runtime.cd8722450869b71ac411.js

runtime.cd8722450869b71ac411.js

1743 ms

439.f445a2ce1177ff7d573b.js

439.f445a2ce1177ff7d573b.js

1746 ms

home.8e1a6d7b44eb11396de7.js

home.8e1a6d7b44eb11396de7.js

1746 ms

runtime.e0a2451e43a9c5594abe.js

runtime.e0a2451e43a9c5594abe.js

1742 ms

439.a02b7977844c5ae591cd.js

439.a02b7977844c5ae591cd.js

2051 ms

home.33d3aafd383d26892702.js

home.33d3aafd383d26892702.js

2019 ms

tabsearch-v2.bundle.js

tabsearch-v2.bundle.js

2028 ms

1208440116.js

1208440116.js

2019 ms

gtm.js

gtm.js

2017 ms

HeroImage-L_2x

HeroImage-L_2x

1778 ms

FakeReviews.svg

FakeReviews.svg

1391 ms

landscape_rounded_2x.png

landscape_rounded_2x.png

1482 ms

Badge_Award_2024_RGB.png

Badge_Award_2024_RGB.png

1485 ms

arrow-right.svg

arrow-right.svg

1742 ms

arrow-right.svg

arrow-right.svg

1741 ms

arrow-right.svg

arrow-right.svg

1759 ms

arrow-bottom.svg

arrow-bottom.svg

1757 ms

arrow-bottom.svg

arrow-bottom.svg

1789 ms

Badge_1x

Badge_1x

1771 ms

stiftung-warentest.png

stiftung-warentest.png

1773 ms

partner_miles-more_1x.png

partner_miles-more_1x.png

1771 ms

montserrat-v12-latin-800.woff

montserrat-v12-latin-800.woff

2023 ms

montserrat-v12-latin-700.woff

montserrat-v12-latin-700.woff

1895 ms

montserrat-v12-latin-500.woff

montserrat-v12-latin-500.woff

2023 ms

montserrat-v12-latin-regular.woff

montserrat-v12-latin-regular.woff

2024 ms

shutterstock_454578679.jpg

shutterstock_454578679.jpg

98 ms

getty-537270828.jpg

getty-537270828.jpg

353 ms

getty-155219644.jpg

getty-155219644.jpg

353 ms

shutterstock_611460731.jpg

shutterstock_611460731.jpg

356 ms

getty-451646137.jpg

getty-451646137.jpg

370 ms

getty-544544937.jpg

getty-544544937.jpg

371 ms

shutterstock_106086773.jpg

shutterstock_106086773.jpg

371 ms

getty-529758288.jpg

getty-529758288.jpg

371 ms

shutterstock_254544955.jpg

shutterstock_254544955.jpg

371 ms

pt-sans-v10-latin-regular.woff

pt-sans-v10-latin-regular.woff

659 ms

pt-sans-v12-latin-700.woff

pt-sans-v12-latin-700.woff

661 ms

XL_1x

XL_1x

171 ms

vertical-packagetrip

vertical-packagetrip

101 ms

vertical-hotels

vertical-hotels

105 ms

vertical-mietwagen

vertical-mietwagen

104 ms

vertical-review

vertical-review

105 ms

current

current

460 ms

ubt.js

ubt.js

320 ms

Accessibility Review

holidaycheck.cz accessibility score

83

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

Best Practices

holidaycheck.cz 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

holidaycheck.cz SEO score

93

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

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Holidaycheck.cz can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Holidaycheck.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

holidaycheck.cz

Open Graph description is not detected on the main page of Holiday Check. 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: