Tools & Wizards About Us
parabola.cz screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

parabola.cz

Parabola.cz (satelity, DVB-T, kabel)

Page Load Speed

5.1 sec in total

First Response

431 ms

Resources Loaded

4.5 sec

Page Rendered

190 ms

parabola.cz screenshot

About Website

Click here to check amazing Parabola content for Czech Republic. Otherwise, check out these important facts you probably never knew about parabola.cz

Parabola.cz - web o satelitn?, terestrick? a kabelov? televizi. Zpr?vi?ky, Novinky na satelitech, TV program, P?ehledy, Diskusn? f?rum, Bazar

Visit parabola.cz

Key Findings

We analyzed Parabola.cz page load time and found that the first response time was 431 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

parabola.cz performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

20/100

25%

SI (Speed Index)

Value15.9 s

0/100

10%

TBT (Total Blocking Time)

Value2,650 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.063

97/100

15%

TTI (Time to Interactive)

Value23.8 s

1/100

10%

Network Requests Diagram

parabola.cz

431 ms

parabola.cz

441 ms

www.parabola.cz

332 ms

www.parabola.cz

546 ms

parabola.css

214 ms

Our browser made a total of 81 requests to load all elements on the main page. We found that 69% of them (56 requests) were addressed to the original Parabola.cz, 5% (4 requests) were made to Cdn.performax.cz and 4% (3 requests) were made to Bbcdn-static.bbelements.com. The less responsive or slowest element that took the longest time to load (771 ms) relates to the external source Cdn.performax.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 53.3 kB (10%)

Content Size

549.0 kB

After Optimization

495.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Parabola.cz main page is 549.0 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. 30% of websites need less resources to load. Javascripts take 394.9 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 45.5 kB

  • Original 61.4 kB
  • After minification 61.1 kB
  • After compression 15.8 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 45.5 kB or 74% of the original size.

Image Optimization

-6%

Potential reduce by 5.1 kB

  • Original 83.1 kB
  • After minification 78.0 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. Parabola images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 1.5 kB

  • Original 394.9 kB
  • After minification 394.8 kB
  • After compression 393.4 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

-12%

Potential reduce by 1.2 kB

  • Original 9.6 kB
  • After minification 9.6 kB
  • After compression 8.5 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. Parabola.cz needs all CSS files to be minified and compressed as it can save up to 1.2 kB or 12% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (44%)

Requests Now

77

After Optimization

43

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Parabola. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

parabola.cz

parabola.cz

431 ms

parabola.cz

parabola.cz

441 ms

www.parabola.cz

www.parabola.cz

332 ms

www.parabola.cz

www.parabola.cz

546 ms

parabola.css

parabola.css

214 ms

jquery-1.11.0.min.js

jquery-1.11.0.min.js

536 ms

slick.css

slick.css

323 ms

slick-theme.css

slick-theme.css

322 ms

parabola_15973.js

parabola_15973.js

180 ms

tag.js

tag.js

587 ms

ssp.js

ssp.js

688 ms

adsbygoogle.js

adsbygoogle.js

118 ms

quant.js

quant.js

31 ms

choice.js

choice.js

459 ms

print.css

print.css

111 ms

GdprCmpConsentDataProvider.js

GdprCmpConsentDataProvider.js

129 ms

BbnautIdDataProvider.js

BbnautIdDataProvider.js

228 ms

nove_logo_2015a.gif

nove_logo_2015a.gif

123 ms

count.asp

count.asp

526 ms

b468_14.gif

b468_14.gif

214 ms

registrace.png

registrace.png

120 ms

prihlasit-se.png

prihlasit-se.png

123 ms

home.png

home.png

121 ms

ico_search.png

ico_search.png

220 ms

b125_23.gif

b125_23.gif

367 ms

ico_odrazka.png

ico_odrazka.png

220 ms

anketa-cervene-tl.png

anketa-cervene-tl.png

230 ms

warner-tv.jpg

warner-tv.jpg

367 ms

s420_02.gif

s420_02.gif

369 ms

dvb-t2.gif

dvb-t2.gif

371 ms

canal-plus.png

canal-plus.png

370 ms

clanky-antiksat.gif

clanky-antiksat.gif

371 ms

svod-max.jpg

svod-max.jpg

432 ms

canal-plus-sport-logo.webp

canal-plus-sport-logo.webp

433 ms

o2tv-multidimenze.jpg

o2tv-multidimenze.jpg

433 ms

ico_v2_sipka_vpravo.png

ico_v2_sipka_vpravo.png

438 ms

ico_v2_dalsi.png

ico_v2_dalsi.png

437 ms

tv-ct1.png

tv-ct1.png

444 ms

tv-ct2.png

tv-ct2.png

543 ms

tv-nova.png

tv-nova.png

541 ms

tv-prima.png

tv-prima.png

541 ms

tv-seznam.png

tv-seznam.png

546 ms

tv-barrandov.png

tv-barrandov.png

545 ms

tv-jednotka.png

tv-jednotka.png

553 ms

tv-dvojka.png

tv-dvojka.png

653 ms

tv-markiza-international.png

tv-markiza-international.png

650 ms

tv-joj-family.png

tv-joj-family.png

651 ms

7707-svod-max-start.jpg

7707-svod-max-start.jpg

653 ms

s125_01.gif

s125_01.gif

652 ms

facebook.png

facebook.png

660 ms

ico_weby_digitalni_tv_cz.gif

ico_weby_digitalni_tv_cz.gif

764 ms

ico_weby_sat_digest.gif

ico_weby_sat_digest.gif

764 ms

ico_weby_flysat.gif

ico_weby_flysat.gif

764 ms

ico_weby_dxmichael.gif

ico_weby_dxmichael.gif

763 ms

count.asp

count.asp

493 ms

show_ads_impl.js

show_ads_impl.js

367 ms

ico_weby_dvbskystar.gif

ico_weby_dvbskystar.gif

650 ms

ico_weby_jecnycz.gif

ico_weby_jecnycz.gif

655 ms

ico_weby_satelitcz.gif

ico_weby_satelitcz.gif

758 ms

ga.js

ga.js

24 ms

loader.js

loader.js

771 ms

ico_weby_mediasat-net.gif

ico_weby_mediasat-net.gif

749 ms

bbnaut-core-latest.min.js

bbnaut-core-latest.min.js

588 ms

__utm.gif

__utm.gif

12 ms

ico_weby_satcharts.gif

ico_weby_satcharts.gif

663 ms

ico_weby_dtvnews.png

ico_weby_dtvnews.png

658 ms

ico_weby_telesatnews.png

ico_weby_telesatnews.png

656 ms

ico_weby_tvpolsat.png

ico_weby_tvpolsat.png

656 ms

cmp2-polyfilled.js

cmp2-polyfilled.js

3 ms

ico_weby_parabolacz.gif

ico_weby_parabolacz.gif

621 ms

select_arrow.gif

select_arrow.gif

622 ms

ico_v2_komentare.png

ico_v2_komentare.png

619 ms

618 ms

bbnaut-lib-2.2.1.min.js

bbnaut-lib-2.2.1.min.js

107 ms

1.js

1.js

106 ms

2.js

2.js

211 ms

flexo.js

flexo.js

372 ms

gpt.js

gpt.js

87 ms

pubads_impl.js

pubads_impl.js

10 ms

334 ms

co

co

614 ms

Accessibility Review

parabola.cz accessibility score

79

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

parabola.cz best practices score

67

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

parabola.cz SEO score

86

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

    N/A

  • Language Claimed

    CS

  • Encoding

    WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Parabola.cz can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Czech. Our system also found out that Parabola.cz main page’s claimed encoding is windows-1250. 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

parabola.cz

Open Graph data is detected on the main page of Parabola. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: