Tools & Wizards About Us
tenisportal.cz screenshot

Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

tenisportal.cz

Tenis portál - tenisové zprávy, výsledky, statistiky, ATP, WTA

Page Load Speed

24.9 sec in total

First Response

384 ms

Resources Loaded

23.4 sec

Page Rendered

1.1 sec

tenisportal.cz screenshot

About Website

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

Kompletní tenisové informace - zprávy, live výsledky tenisu, žebříčky a archivní výsledky z ATP a WTA. Soutěže a sázkařské tipy na tenis.

Visit tenisportal.cz

Key Findings

We analyzed Tenisportal.cz page load time and found that the first response time was 384 ms and then it took 24.5 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

tenisportal.cz performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.8 s

0/100

10%

LCP (Largest Contentful Paint)

Value17.5 s

0/100

25%

SI (Speed Index)

Value11.0 s

6/100

10%

TBT (Total Blocking Time)

Value2,270 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.157

74/100

15%

TTI (Time to Interactive)

Value18.0 s

3/100

10%

Network Requests Diagram

tenisportal.cz

384 ms

www.tenisportal.cz

686 ms

otSDKStub.js

33 ms

ssp.js

774 ms

application.css

281 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 65% of them (20 requests) were addressed to the original Tenisportal.cz, 10% (3 requests) were made to Cdn.cookielaw.org and 6% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (20.3 sec) relates to the external source Toplist.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 496.6 kB (32%)

Content Size

1.6 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tenisportal.cz main page is 1.6 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. 40% of websites need less resources to load. Javascripts take 964.3 kB which makes up the majority of the site volume.

HTML Optimization

-93%

Potential reduce by 488.7 kB

  • Original 525.8 kB
  • After minification 425.5 kB
  • After compression 37.0 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 100.3 kB, which is 19% 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 488.7 kB or 93% of the original size.

Image Optimization

-2%

Potential reduce by 154 B

  • Original 6.2 kB
  • After minification 6.1 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. Tenis Portal images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 107 B

  • Original 964.3 kB
  • After minification 964.3 kB
  • After compression 964.2 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

-10%

Potential reduce by 7.6 kB

  • Original 75.5 kB
  • After minification 75.5 kB
  • After compression 67.9 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. Tenisportal.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (41%)

Requests Now

27

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tenis Portal. 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 from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

tenisportal.cz

tenisportal.cz

384 ms

www.tenisportal.cz

www.tenisportal.cz

686 ms

otSDKStub.js

otSDKStub.js

33 ms

ssp.js

ssp.js

774 ms

application.css

application.css

281 ms

extra.css

extra.css

314 ms

advert.css

advert.css

315 ms

bookmakerLogos.css

bookmakerLogos.css

316 ms

application.js

application.js

1682 ms

functions.js

functions.js

376 ms

css2

css2

35 ms

219ad199-28f4-4ecb-975b-3f764722e52b.json

219ad199-28f4-4ecb-975b-3f764722e52b.json

25 ms

gtm.js

gtm.js

45 ms

location

location

49 ms

otBannerSdk.js

otBannerSdk.js

18 ms

count.asp

count.asp

20265 ms

icon-advertv.gif

icon-advertv.gif

154 ms

tenisportal-logo.svg

tenisportal-logo.svg

152 ms

svg_sprite.svg

svg_sprite.svg

235 ms

icon-adverth.gif

icon-adverth.gif

338 ms

fortuna-logo.svg

fortuna-logo.svg

337 ms

livevysledky.svg

livevysledky.svg

338 ms

zpravy.svg

zpravy.svg

339 ms

livescore.svg

livescore.svg

421 ms

sportodds.svg

sportodds.svg

420 ms

eurofotbal.svg

eurofotbal.svg

422 ms

efotbal.png

efotbal.png

422 ms

rss.svg

rss.svg

425 ms

font

font

82 ms

font

font

82 ms

js

js

87 ms

Accessibility Review

tenisportal.cz accessibility score

83

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

[role]s are not contained by their required parent element

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

Buttons do not have an accessible name

High

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

High

Links do not have a discernible name

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.

Best Practices

tenisportal.cz best practices score

83

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

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

tenisportal.cz SEO score

92

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

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 Tenisportal.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 Tenisportal.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

tenisportal.cz

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