Tools & Wizards About Us
hzscr.cz screenshot

Report Summary

  • 57

    Performance

    Renders faster than
    73% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

hzscr.cz

Úvodní strana - Hasičský záchranný sbor České republiky

Page Load Speed

4.4 sec in total

First Response

507 ms

Resources Loaded

3.7 sec

Page Rendered

164 ms

hzscr.cz screenshot

About Website

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

Hasičský záchranný sbor České republiky (HZS ČR) chrání životy, zdraví obyvatel a majetek před požáry a poskytuje pomoc při mimořádných událostech (živelních pohromách, průmyslových haváriích nebo ter...

Visit hzscr.cz

Key Findings

We analyzed Hzscr.cz page load time and found that the first response time was 507 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

hzscr.cz performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value7.7 s

3/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value5.2 s

74/100

10%

Network Requests Diagram

hzscr.cz

507 ms

www.hzscr.cz

1172 ms

mvcr-screen.css

551 ms

mvcr-homepage.css

366 ms

mvcr-hasici.css

367 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 95% of them (39 requests) were addressed to the original Hzscr.cz, 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Hzscr.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 168.9 kB (49%)

Content Size

346.6 kB

After Optimization

177.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Hzscr.cz main page is 346.6 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. 25% of websites need less resources to load. Images take 139.3 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 41.3 kB

  • Original 50.5 kB
  • After minification 36.4 kB
  • After compression 9.2 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. This page needs HTML code to be minified as it can gain 14.2 kB, which is 28% 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 41.3 kB or 82% of the original size.

Image Optimization

-7%

Potential reduce by 10.1 kB

  • Original 139.3 kB
  • After minification 129.2 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. Hzscr images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 71.4 kB

  • Original 100.9 kB
  • After minification 72.4 kB
  • After compression 29.5 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 71.4 kB or 71% of the original size.

CSS Optimization

-83%

Potential reduce by 46.2 kB

  • Original 55.9 kB
  • After minification 37.8 kB
  • After compression 9.7 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. Hzscr.cz needs all CSS files to be minified and compressed as it can save up to 46.2 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (50%)

Requests Now

36

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hzscr. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

hzscr.cz

hzscr.cz

507 ms

www.hzscr.cz

www.hzscr.cz

1172 ms

mvcr-screen.css

mvcr-screen.css

551 ms

mvcr-homepage.css

mvcr-homepage.css

366 ms

mvcr-hasici.css

mvcr-hasici.css

367 ms

mvcr-fix.css

mvcr-fix.css

370 ms

jquery-1.1.3.1.pack.js

jquery-1.1.3.1.pack.js

555 ms

main.js

main.js

379 ms

calendar-win2k-cold-1.css

calendar-win2k-cold-1.css

568 ms

calendar.js

calendar.js

934 ms

cs-utf8.js

cs-utf8.js

567 ms

calendar-setup.js

calendar-setup.js

570 ms

urchin.js

urchin.js

21 ms

__utm.gif

__utm.gif

37 ms

bg-body.png

bg-body.png

188 ms

topimage-hasici-2.jpg

topimage-hasici-2.jpg

536 ms

logo-hasici-2.jpg

logo-hasici-2.jpg

363 ms

but-ok.gif

but-ok.gif

184 ms

sipka-cervena.gif

sipka-cervena.gif

186 ms

bg-hmenu-hasici.gif

bg-hmenu-hasici.gif

189 ms

bg-hmenu-ul.gif

bg-hmenu-ul.gif

359 ms

dots.gif

dots.gif

358 ms

ViewImage.aspx

ViewImage.aspx

541 ms

ViewImage.aspx

ViewImage.aspx

369 ms

ViewImage.aspx

ViewImage.aspx

546 ms

but-dalsi.gif

but-dalsi.gif

705 ms

ViewImage.aspx

ViewImage.aspx

725 ms

but-dalsifotogalerie.gif

but-dalsifotogalerie.gif

543 ms

map-hzs-cr.png

map-hzs-cr.png

720 ms

bg-kalendar.gif

bg-kalendar.gif

718 ms

bg-kalendar-bot.gif

bg-kalendar-bot.gif

721 ms

ViewBanner.aspx

ViewBanner.aspx

730 ms

ViewBanner.aspx

ViewBanner.aspx

894 ms

ViewBanner.aspx

ViewBanner.aspx

1085 ms

ViewBanner.aspx

ViewBanner.aspx

906 ms

odrazka-sipka-cervena-2.gif

odrazka-sipka-cervena-2.gif

879 ms

odrazka-sipka-cervena.gif

odrazka-sipka-cervena.gif

885 ms

but-mvcr-red.gif

but-mvcr-red.gif

888 ms

but-policie-red.gif

but-policie-red.gif

1051 ms

bg-banner.gif

bg-banner.gif

1057 ms

mvcr-tisk.css

mvcr-tisk.css

184 ms

Accessibility Review

hzscr.cz accessibility score

94

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

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

Links do not have a discernible name

Best Practices

hzscr.cz best practices score

58

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

hzscr.cz SEO score

77

Search Engine Optimization Advices

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 Hzscr.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 Hzscr.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

hzscr.cz

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