Tools & Wizards About Us

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

karlovyvary.cz

Karlovy Vary - Official Tourist Website

Page Load Speed

9.8 sec in total

First Response

428 ms

Resources Loaded

8.7 sec

Page Rendered

736 ms

About Website

Visit karlovyvary.cz now to see the best up-to-date Karlovy Vary content for Switzerland and also check out these interesting facts you probably never knew about karlovyvary.cz

Official tourist website of Karlovy Vary. What to see in Karlovy Vary? Tourist information, hotels, pictures, videos, sightseeing and trips.

Visit karlovyvary.cz

Key Findings

We analyzed Karlovyvary.cz page load time and found that the first response time was 428 ms and then it took 9.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

karlovyvary.cz performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value18.3 s

0/100

25%

SI (Speed Index)

Value7.3 s

28/100

10%

TBT (Total Blocking Time)

Value630 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value11.7 s

17/100

10%

Network Requests Diagram

karlovyvary.cz

428 ms

www.karlovyvary.cz

340 ms

cs

265 ms

css_xA1UIRZ-h8WXsmT1LlNmD7faO7L5M_FKTgI1rMsmHVg.css

111 ms

css_UENHrtR21ElyBNF1-8UnE_jKjlsLp-LLXTUu1QQZdJg.css

336 ms

Our browser made a total of 92 requests to load all elements on the main page. We found that 35% of them (32 requests) were addressed to the original Karlovyvary.cz, 24% (22 requests) were made to Static.xx.fbcdn.net and 16% (15 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (4.4 sec) belongs to the original domain Karlovyvary.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 297.9 kB (7%)

Content Size

4.4 MB

After Optimization

4.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Karlovyvary.cz main page is 4.4 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. 55% of websites need less resources to load. Images take 4.0 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 41.2 kB

  • Original 52.7 kB
  • After minification 42.5 kB
  • After compression 11.4 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. This page needs HTML code to be minified as it can gain 10.2 kB, which is 19% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 41.2 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 13.0 kB

  • Original 4.0 MB
  • After minification 3.9 MB

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. Karlovy Vary images are well optimized though.

JavaScript Optimization

-53%

Potential reduce by 87.4 kB

  • Original 165.6 kB
  • After minification 165.6 kB
  • After compression 78.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 87.4 kB or 53% of the original size.

CSS Optimization

-84%

Potential reduce by 156.3 kB

  • Original 185.6 kB
  • After minification 182.8 kB
  • After compression 29.3 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. Karlovyvary.cz needs all CSS files to be minified and compressed as it can save up to 156.3 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 51 (59%)

Requests Now

87

After Optimization

36

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Karlovy Vary. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

karlovyvary.cz accessibility score

61

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.

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

karlovyvary.cz best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

karlovyvary.cz SEO score

92

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Karlovyvary.cz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Czech language. Our system also found out that Karlovyvary.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 Karlovy Vary. 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: