Tools & Wizards About Us
isat.cz screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

isat.cz

Satelitní technika - satelitní přijímače a komplety, set top boxy, dvb-t technika :: INTER SAT

Page Load Speed

3.6 sec in total

First Response

257 ms

Resources Loaded

3.2 sec

Page Rendered

175 ms

isat.cz screenshot

About Website

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

Velkoobchod se satelitní technikou. Satelitní přijímače, satelitní komplety, set top boxy a další příslušenství. Vše skladem za skvělé ceny.

Visit isat.cz

Key Findings

We analyzed Isat.cz page load time and found that the first response time was 257 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

isat.cz performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

35/100

25%

SI (Speed Index)

Value5.8 s

49/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.165

72/100

15%

TTI (Time to Interactive)

Value6.4 s

59/100

10%

Network Requests Diagram

isat.cz

257 ms

www.inter-sat.cz

1273 ms

styles.css

255 ms

status_css.asp

360 ms

tesla-popisek.css

430 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Isat.cz, 77% (37 requests) were made to Inter-sat.cz and 8% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Inter-sat.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 91.3 kB (9%)

Content Size

1.0 MB

After Optimization

952.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Isat.cz main page is 1.0 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. 30% of websites need less resources to load. Images take 785.5 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 29.6 kB

  • Original 38.1 kB
  • After minification 32.2 kB
  • After compression 8.5 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 5.9 kB, which is 16% 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 29.6 kB or 78% of the original size.

Image Optimization

-3%

Potential reduce by 21.3 kB

  • Original 785.5 kB
  • After minification 764.2 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. I SAT images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 16.3 kB

  • Original 154.3 kB
  • After minification 154.3 kB
  • After compression 138.0 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 16.3 kB or 11% of the original size.

CSS Optimization

-36%

Potential reduce by 24.0 kB

  • Original 66.3 kB
  • After minification 66.3 kB
  • After compression 42.3 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. Isat.cz needs all CSS files to be minified and compressed as it can save up to 24.0 kB or 36% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (23%)

Requests Now

40

After Optimization

31

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of I SAT. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

isat.cz

isat.cz

257 ms

www.inter-sat.cz

www.inter-sat.cz

1273 ms

styles.css

styles.css

255 ms

status_css.asp

status_css.asp

360 ms

tesla-popisek.css

tesla-popisek.css

430 ms

jquery.min.js

jquery.min.js

23 ms

jquery-ui.min.js

jquery-ui.min.js

27 ms

jquery-migrate-3.0.0.min.js

jquery-migrate-3.0.0.min.js

22 ms

css

css

35 ms

scripts.js

scripts.js

655 ms

strings_js.asp

strings_js.asp

453 ms

flag-en.svg

flag-en.svg

108 ms

flag-cz.svg

flag-cz.svg

107 ms

flag-sk.svg

flag-sk.svg

110 ms

logo.svg

logo.svg

109 ms

isat-ico-basket.svg

isat-ico-basket.svg

110 ms

isat-ico-servis.svg

isat-ico-servis.svg

218 ms

isat-ico-download.svg

isat-ico-download.svg

215 ms

isat-ico-support.svg

isat-ico-support.svg

219 ms

isat-ico-user.svg

isat-ico-user.svg

216 ms

audio-video_wi559.jpg

audio-video_wi559.jpg

634 ms

tesla-te-3000_wi564.jpg

tesla-te-3000_wi564.jpg

846 ms

konzoly-a-stozary_wi560.jpg

konzoly-a-stozary_wi560.jpg

743 ms

tesla-mediabox-xt850-hybridni-multimedialni-prehravac-s-dvb-t2_ig12063.jpg

tesla-mediabox-xt850-hybridni-multimedialni-prehravac-s-dvb-t2_ig12063.jpg

387 ms

tesla-aircook-q55-xl-pro-multifunkcni-digitalni-horkovzdusna-friteza-cerna-barva-_ig13932.jpg

tesla-aircook-q55-xl-pro-multifunkcni-digitalni-horkovzdusna-friteza-cerna-barva-_ig13932.jpg

445 ms

teletek-tk-524-multiprepinac-5-24-kaskadovy_ig14233.jpg

teletek-tk-524-multiprepinac-5-24-kaskadovy_ig14233.jpg

502 ms

iskra-p-28-g-switch-dvb-t-t2-antena-se-zesilovacem-8-db-23-db_ig13869.jpg

iskra-p-28-g-switch-dvb-t-t2-antena-se-zesilovacem-8-db-23-db_ig13869.jpg

560 ms

its-eksel-compact-plus-programovatelny-zesilovac_ig14265.jpg

its-eksel-compact-plus-programovatelny-zesilovac_ig14265.jpg

619 ms

isat-ico-box-arrow.png

isat-ico-box-arrow.png

577 ms

isat-ico-phone-green.svg

isat-ico-phone-green.svg

635 ms

KFOmCnqEu92Fr1Mu7GxM.woff

KFOmCnqEu92Fr1Mu7GxM.woff

35 ms

KFOlCnqEu92Fr1MmEU9fChc-.woff

KFOlCnqEu92Fr1MmEU9fChc-.woff

35 ms

KFOlCnqEu92Fr1MmSU5fChc-.woff

KFOlCnqEu92Fr1MmSU5fChc-.woff

53 ms

KFOlCnqEu92Fr1MmWUlfChc-.woff

KFOlCnqEu92Fr1MmWUlfChc-.woff

54 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

893 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

803 ms

isat-ico-car.svg

isat-ico-car.svg

691 ms

isat-ico-support-blue.svg

isat-ico-support-blue.svg

721 ms

isat-ico-years.svg

isat-ico-years.svg

799 ms

isat-ico-partner.svg

isat-ico-partner.svg

801 ms

isat-ico-ownproducts.svg

isat-ico-ownproducts.svg

828 ms

isat-ico-phone-blue.svg

isat-ico-phone-blue.svg

876 ms

isat-ico-mail.svg

isat-ico-mail.svg

884 ms

isat-ico-position.svg

isat-ico-position.svg

890 ms

facebook_logo.png

facebook_logo.png

892 ms

youtub_logo.png

youtub_logo.png

919 ms

gtm.js

gtm.js

63 ms

js

js

50 ms

Accessibility Review

isat.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

Form elements do not have associated labels

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

isat.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

SEO Factors

isat.cz SEO score

89

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Isat.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 Isat.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

isat.cz

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