Tools & Wizards About Us
havirov-info.cz screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 88

    SEO

    Google-friendlier than
    66% of websites

havirov-info.cz

Městské informační centrum Havířov

Page Load Speed

5.6 sec in total

First Response

362 ms

Resources Loaded

4.9 sec

Page Rendered

357 ms

havirov-info.cz screenshot

About Website

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

Visit havirov-info.cz

Key Findings

We analyzed Havirov-info.cz page load time and found that the first response time was 362 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

havirov-info.cz performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value18.2 s

0/100

25%

SI (Speed Index)

Value13.2 s

2/100

10%

TBT (Total Blocking Time)

Value1,260 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value16.6 s

5/100

10%

Network Requests Diagram

havirov-info.cz

362 ms

www.havirov-info.cz

1245 ms

main.css

128 ms

ClanekRubrika.css

238 ms

ClanekRubrikaHP.css

235 ms

Our browser made a total of 136 requests to load all elements on the main page. We found that 97% of them (132 requests) were addressed to the original Havirov-info.cz, 1% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Havirov-info.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 795.8 kB (42%)

Content Size

1.9 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Havirov-info.cz main page is 1.9 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. 45% of websites need less resources to load. Images take 978.7 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 63.2 kB

  • Original 74.5 kB
  • After minification 71.9 kB
  • After compression 11.3 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 63.2 kB or 85% of the original size.

Image Optimization

-12%

Potential reduce by 115.1 kB

  • Original 978.7 kB
  • After minification 863.6 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, Havirov Info needs image optimization as it can save up to 115.1 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-74%

Potential reduce by 542.9 kB

  • Original 738.2 kB
  • After minification 645.3 kB
  • After compression 195.3 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 542.9 kB or 74% of the original size.

CSS Optimization

-84%

Potential reduce by 74.5 kB

  • Original 88.3 kB
  • After minification 62.7 kB
  • After compression 13.8 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. Havirov-info.cz needs all CSS files to be minified and compressed as it can save up to 74.5 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 51 (38%)

Requests Now

134

After Optimization

83

  • Images
  • JavaScript
  • CSS

The browser has sent 134 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Havirov Info. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

havirov-info.cz

havirov-info.cz

362 ms

www.havirov-info.cz

www.havirov-info.cz

1245 ms

main.css

main.css

128 ms

ClanekRubrika.css

ClanekRubrika.css

238 ms

ClanekRubrikaHP.css

ClanekRubrikaHP.css

235 ms

jquery.js

jquery.js

10 ms

jquery-ui-1.8.18.custom.css

jquery-ui-1.8.18.custom.css

258 ms

jquery-ui-1.8.18.custom.min.js

jquery-ui-1.8.18.custom.min.js

504 ms

jquery.ui.datepicker-cs.js

jquery.ui.datepicker-cs.js

261 ms

jquery.anchor.js

jquery.anchor.js

257 ms

jquery.cycle.all.js

jquery.cycle.all.js

356 ms

jquery.jcarousel.js

jquery.jcarousel.js

354 ms

skin.css

skin.css

365 ms

bootstrap.css

bootstrap.css

382 ms

bootstrap.js

bootstrap.js

392 ms

jscal2.js

jscal2.js

474 ms

cz.js

cz.js

469 ms

jscal2.css

jscal2.css

483 ms

knih.css

knih.css

500 ms

clearbox.js

clearbox.js

543 ms

tiny_mce.js

tiny_mce.js

822 ms

config.js

config.js

590 ms

excanvas.js

excanvas.js

603 ms

coolclock.js

coolclock.js

619 ms

moreskins.js

moreskins.js

618 ms

cb_style.css

cb_style.css

122 ms

cb_config.js

cb_config.js

160 ms

cb_language.js

cb_language.js

179 ms

cb_core.js

cb_core.js

202 ms

53ce22468f2e3.png

53ce22468f2e3.png

707 ms

logo.png

logo.png

247 ms

mail.png

mail.png

119 ms

tel.png

tel.png

122 ms

bg.png

bg.png

118 ms

menu.png

menu.png

121 ms

delimiter.png

delimiter.png

121 ms

teplomer.png

teplomer.png

230 ms

ndm.png

ndm.png

232 ms

colosseum.png

colosseum.png

240 ms

eventim.png

eventim.png

243 ms

ts_logo.jpg

ts_logo.jpg

241 ms

ticketart.png

ticketart.png

342 ms

ticketpro.png

ticketpro.png

344 ms

dk.png

dk.png

361 ms

FCB.jpg

FCB.jpg

363 ms

ticketportal.png

ticketportal.png

362 ms

amsbus.png

amsbus.png

364 ms

DLOO.jpg

DLOO.jpg

456 ms

kamnaobed3.png

kamnaobed3.png

456 ms

modra.png

modra.png

477 ms

fialova.png

fialova.png

480 ms

ruzova.png

ruzova.png

480 ms

oranzova.png

oranzova.png

481 ms

velikonoce1.jpg

velikonoce1.jpg

803 ms

fcb.png

fcb.png

573 ms

Monkey-Business.jpg

Monkey-Business.jpg

947 ms

osmy_svetadil.png

osmy_svetadil.png

971 ms

120x60_velikonocni_mestecko.jpg

120x60_velikonocni_mestecko.jpg

601 ms

120x60_trabantem_do_posledniho_dechu.jpg

120x60_trabantem_do_posledniho_dechu.jpg

602 ms

120x60_perem_pastelem.jpg

120x60_perem_pastelem.jpg

686 ms

120x60_logo_knihovna2(1).jpg

120x60_logo_knihovna2(1).jpg

724 ms

120x60_vystava_hornickych_kuzi.jpg

120x60_vystava_hornickych_kuzi.jpg

725 ms

120x60_rugby_vystava.jpg

120x60_rugby_vystava.jpg

801 ms

120x60_akty_x.jpg

120x60_akty_x.jpg

846 ms

120x60_tibet1.jpg

120x60_tibet1.jpg

848 ms

120x60_sesublu_show.jpg

120x60_sesublu_show.jpg

908 ms

ga.js

ga.js

9 ms

__utm.gif

__utm.gif

12 ms

120x60_zlaty_erb.jpg

120x60_zlaty_erb.jpg

809 ms

120x60_jindrich_streit_krystal.jpg

120x60_jindrich_streit_krystal.jpg

860 ms

120x60_tanec.jpg

120x60_tanec.jpg

859 ms

120x60_sopky.JPG

120x60_sopky.JPG

918 ms

120x60_jan_cholevik_madeira.jpg

120x60_jan_cholevik_madeira.jpg

942 ms

120x60_velikonoce1.jpg

120x60_velikonoce1.jpg

841 ms

120x60_fcb.png

120x60_fcb.png

865 ms

3M_Logo_45pt_95x64.gif

3M_Logo_45pt_95x64.gif

854 ms

havr.png

havr.png

856 ms

rk.png

rk.png

910 ms

landek.png

landek.png

933 ms

mskraj.png

mskraj.png

845 ms

okd.png

okd.png

868 ms

poda.png

poda.png

854 ms

ministerstvo.png

ministerstvo.png

853 ms

era.png

era.png

900 ms

qr.png

qr.png

922 ms

kniha.png

kniha.png

849 ms

mapa.png

mapa.png

878 ms

active.png

active.png

857 ms

bg.png

bg.png

855 ms

nav-left-x2.gif

nav-left-x2.gif

896 ms

nav-right-x2.gif

nav-right-x2.gif

917 ms

nav-left.gif

nav-left.gif

847 ms

nav-right.gif

nav-right.gif

849 ms

bg.png

bg.png

857 ms

rot_l_outer.gif

rot_l_outer.gif

771 ms

prev_outer.gif

prev_outer.gif

760 ms

pause_outer.gif

pause_outer.gif

785 ms

start_outer.gif

start_outer.gif

735 ms

next_outer.gif

next_outer.gif

772 ms

rot_r_outer.gif

rot_r_outer.gif

731 ms

loading.gif

loading.gif

728 ms

close.png

close.png

681 ms

blank.gif

blank.gif

706 ms

prev.png

prev.png

708 ms

next.png

next.png

728 ms

pause.png

pause.png

729 ms

start.png

start.png

726 ms

s_topleft.png

s_topleft.png

682 ms

s_top.png

s_top.png

682 ms

s_topright.png

s_topright.png

706 ms

s_left.png

s_left.png

728 ms

s_right.png

s_right.png

727 ms

s_btmleft.png

s_btmleft.png

727 ms

s_btm.png

s_btm.png

682 ms

s_btmright.png

s_btmright.png

680 ms

btm_dl.gif

btm_dl.gif

706 ms

btm_max.gif

btm_max.gif

728 ms

btm_next.gif

btm_next.gif

727 ms

btm_prev.gif

btm_prev.gif

729 ms

btm_rot_l.gif

btm_rot_l.gif

683 ms

btm_rot_r.gif

btm_rot_r.gif

681 ms

no_flash.gif

no_flash.gif

706 ms

no_html.gif

no_html.gif

726 ms

no_iframe.gif

no_iframe.gif

723 ms

no_image.gif

no_image.gif

728 ms

no_inner.gif

no_inner.gif

682 ms

no_quicktime.gif

no_quicktime.gif

682 ms

no_winmedia.gif

no_winmedia.gif

708 ms

no_winmediaavi.gif

no_winmediaavi.gif

726 ms

no_winmediamp3.gif

no_winmediamp3.gif

721 ms

no_winmediampg.gif

no_winmediampg.gif

712 ms

no_winmediawav.gif

no_winmediawav.gif

696 ms

no_winmediawma.gif

no_winmediawma.gif

683 ms

no_winmediawmv.gif

no_winmediawmv.gif

707 ms

no_youtube.gif

no_youtube.gif

710 ms

main-print.css

main-print.css

122 ms

Accessibility Review

havirov-info.cz accessibility score

90

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

havirov-info.cz best practices score

92

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

SEO Factors

havirov-info.cz SEO score

88

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 Havirov-info.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 Havirov-info.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

havirov-info.cz

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