Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

vls.cz

Unikátní příroda, péče s tradicí - Vojenské lesy a statky ČR, s.p.

Page Load Speed

8.8 sec in total

First Response

561 ms

Resources Loaded

7.4 sec

Page Rendered

789 ms

vls.cz screenshot

About Website

Visit vls.cz now to see the best up-to-date Vls content for Czech Republic and also check out these interesting facts you probably never knew about vls.cz

VLS ČR, s.p. je státní společnost s více než 80. letou tradicí, s kořeny v první republice.

Visit vls.cz

Key Findings

We analyzed Vls.cz page load time and found that the first response time was 561 ms and then it took 8.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

vls.cz performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value19.6 s

0/100

25%

SI (Speed Index)

Value13.0 s

2/100

10%

TBT (Total Blocking Time)

Value2,420 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.065

97/100

15%

TTI (Time to Interactive)

Value23.5 s

1/100

10%

Network Requests Diagram

vls.cz

561 ms

www.vls.cz

1306 ms

desktop.css

213 ms

desktop.js

634 ms

qozitdXUL-Q

146 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 70% of them (37 requests) were addressed to the original Vls.cz, 11% (6 requests) were made to Youtube.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (4.9 sec) belongs to the original domain Vls.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 81.3 kB (2%)

Content Size

3.9 MB

After Optimization

3.8 MB

In fact, the total size of Vls.cz main page is 3.9 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.4 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 40.2 kB

  • Original 45.2 kB
  • After minification 18.7 kB
  • After compression 5.0 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 26.5 kB, which is 59% 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 40.2 kB or 89% of the original size.

Image Optimization

-0%

Potential reduce by 160 B

  • Original 3.4 MB
  • After minification 3.4 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. Vls images are well optimized though.

JavaScript Optimization

-8%

Potential reduce by 29.6 kB

  • Original 354.5 kB
  • After minification 354.5 kB
  • After compression 324.9 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.

CSS Optimization

-11%

Potential reduce by 11.3 kB

  • Original 107.9 kB
  • After minification 107.9 kB
  • After compression 96.6 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. Vls.cz needs all CSS files to be minified and compressed as it can save up to 11.3 kB or 11% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (15%)

Requests Now

47

After Optimization

40

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vls. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

vls.cz accessibility score

100

Accessibility Issues

Best Practices

vls.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

vls.cz SEO score

97

Search Engine Optimization Advices

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

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vls.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it matches the claimed language. Our system also found out that Vls.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 data is detected on the main page of Vls. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: