Tools & Wizards About Us
vosyka.cz screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

vosyka.cz

Page Load Speed

2 sec in total

First Response

432 ms

Resources Loaded

1.4 sec

Page Rendered

138 ms

vosyka.cz screenshot

About Website

Visit vosyka.cz now to see the best up-to-date Vosyka content and also check out these interesting facts you probably never knew about vosyka.cz

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Key Findings

We analyzed Vosyka.cz page load time and found that the first response time was 432 ms and then it took 1.5 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

vosyka.cz performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.1 s

1/100

10%

LCP (Largest Contentful Paint)

Value8.9 s

1/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value290 ms

79/100

30%

CLS (Cumulative Layout Shift)

Value0.048

99/100

15%

TTI (Time to Interactive)

Value9.3 s

31/100

10%

Network Requests Diagram

vosyka.cz

432 ms

winxp.blue.css

235 ms

newsfeeds.js.php

236 ms

promo-flags.js.php

236 ms

top_bg.jpg

244 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that all of those requests were addressed to Vosyka.cz and no external sources were called. The less responsive or slowest element that took the longest time to load (485 ms) belongs to the original domain Vosyka.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 11.3 kB (63%)

Content Size

18.0 kB

After Optimization

6.7 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Vosyka.cz main page is 18.0 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. CSS take 9.5 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 3.1 kB

  • Original 4.4 kB
  • After minification 4.3 kB
  • After compression 1.2 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 3.1 kB or 71% of the original size.

Image Optimization

-17%

Potential reduce by 719 B

  • Original 4.1 kB
  • After minification 3.4 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. Obviously, Vosyka needs image optimization as it can save up to 719 B or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-79%

Potential reduce by 7.4 kB

  • Original 9.5 kB
  • After minification 7.7 kB
  • After compression 2.0 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. Vosyka.cz needs all CSS files to be minified and compressed as it can save up to 7.4 kB or 79% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

  • Images
  • CSS

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vosyka. According to our analytics all requests are already optimized.

Network Requests Diagram

vosyka.cz

vosyka.cz

432 ms

winxp.blue.css

winxp.blue.css

235 ms

newsfeeds.js.php

newsfeeds.js.php

236 ms

promo-flags.js.php

promo-flags.js.php

236 ms

top_bg.jpg

top_bg.jpg

244 ms

logo.gif

logo.gif

475 ms

top_body_bg.jpg

top_body_bg.jpg

245 ms

banner.gif

banner.gif

478 ms

dBox-header-left.gif

dBox-header-left.gif

240 ms

dBox-header-right.gif

dBox-header-right.gif

243 ms

dBox-footer-bg.gif

dBox-footer-bg.gif

462 ms

btn_refresh-list_bg.gif

btn_refresh-list_bg.gif

485 ms

Accessibility Review

vosyka.cz accessibility score

86

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

Document doesn't have a <title> element

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

vosyka.cz best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

vosyka.cz SEO score

83

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

Document doesn't have a <title> element

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

    CS

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vosyka.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Vosyka.cz main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

vosyka.cz

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