Tools & Wizards About Us
sportcentral.cz screenshot

Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

sportcentral.cz

Portál pro rekreační sportovce, týmy a sportoviště | SportCentral

Page Load Speed

3.7 sec in total

First Response

398 ms

Resources Loaded

3.1 sec

Page Rendered

229 ms

sportcentral.cz screenshot

About Website

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

SportCentral pomáhá lidem a týmům se sportováním - najdi si kamarády na sport, vyber nejlepší sportoviště, zorganizuj tým nebo uspořádej sportovní akci.

Visit sportcentral.cz

Key Findings

We analyzed Sportcentral.cz page load time and found that the first response time was 398 ms and then it took 3.3 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

sportcentral.cz performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value10.7 s

0/100

25%

SI (Speed Index)

Value7.2 s

30/100

10%

TBT (Total Blocking Time)

Value1,220 ms

20/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value12.7 s

13/100

10%

Network Requests Diagram

sportcentral.cz

398 ms

www.sportcentral.cz

227 ms

www.sportcentral.cz

720 ms

layout-new.e9can7xvv5.css

203 ms

homepage.n9s35zrta6.css

305 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 74% of them (52 requests) were addressed to the original Sportcentral.cz, 7% (5 requests) were made to Api.mapy.cz and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Sportcentral.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 246.6 kB (12%)

Content Size

2.0 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sportcentral.cz main page is 2.0 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. 40% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 67.9 kB

  • Original 79.8 kB
  • After minification 55.1 kB
  • After compression 12.0 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 24.8 kB, which is 31% 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 67.9 kB or 85% of the original size.

Image Optimization

-2%

Potential reduce by 26.8 kB

  • Original 1.6 MB
  • After minification 1.6 MB

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. Sport Central images are well optimized though.

JavaScript Optimization

-37%

Potential reduce by 92.3 kB

  • Original 248.5 kB
  • After minification 248.5 kB
  • After compression 156.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 92.3 kB or 37% of the original size.

CSS Optimization

-75%

Potential reduce by 59.6 kB

  • Original 79.1 kB
  • After minification 79.1 kB
  • After compression 19.5 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. Sportcentral.cz needs all CSS files to be minified and compressed as it can save up to 59.6 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (33%)

Requests Now

67

After Optimization

45

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sport Central. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sportcentral.cz

sportcentral.cz

398 ms

www.sportcentral.cz

www.sportcentral.cz

227 ms

www.sportcentral.cz

www.sportcentral.cz

720 ms

layout-new.e9can7xvv5.css

layout-new.e9can7xvv5.css

203 ms

homepage.n9s35zrta6.css

homepage.n9s35zrta6.css

305 ms

jquery.ejypifxxzx.js

jquery.ejypifxxzx.js

406 ms

app.bqtuttojjm.js

app.bqtuttojjm.js

416 ms

layout-new.e9can7xvv5.js

layout-new.e9can7xvv5.js

418 ms

homepage.n9s35zrta6.js

homepage.n9s35zrta6.js

308 ms

showads.js

showads.js

315 ms

adsbygoogle.js

adsbygoogle.js

167 ms

conversion.js

conversion.js

84 ms

css

css

28 ms

analytics.js

analytics.js

74 ms

fbevents.js

fbevents.js

74 ms

1.jpg

1.jpg

268 ms

badge_light.png

badge_light.png

150 ms

2.jpg

2.jpg

514 ms

3.jpg

3.jpg

425 ms

4.jpg

4.jpg

453 ms

5.jpg

5.jpg

454 ms

6.jpg

6.jpg

451 ms

7.jpg

7.jpg

657 ms

8.jpg

8.jpg

530 ms

9.jpg

9.jpg

655 ms

praha_310x180.jpg

praha_310x180.jpg

554 ms

brno_310x180.jpg

brno_310x180.jpg

555 ms

olomouc_310x180.jpg

olomouc_310x180.jpg

616 ms

plzen_310x180.jpg

plzen_310x180.jpg

635 ms

liberec_310x180.jpg

liberec_310x180.jpg

655 ms

ostrava_310x180.jpg

ostrava_310x180.jpg

655 ms

ROZJEZDY-CZ.jpg

ROZJEZDY-CZ.jpg

719 ms

USMAC-CZ.jpg

USMAC-CZ.jpg

740 ms

CITA-CZ.jpg

CITA-CZ.jpg

754 ms

CIN-CZ.jpg

CIN-CZ.jpg

756 ms

IEA-CZ.jpg

IEA-CZ.jpg

756 ms

T-Mobile_logo.png

T-Mobile_logo.png

757 ms

ceskosehybe.png

ceskosehybe.png

822 ms

sportobchod.png

sportobchod.png

844 ms

vaseliga.png

vaseliga.png

854 ms

ct24.png

ct24.png

855 ms

mfdnes.png

mfdnes.png

856 ms

lupa.png

lupa.png

857 ms

denik.png

denik.png

924 ms

sportcz.png

sportcz.png

948 ms

payment.png

payment.png

956 ms

logo.png

logo.png

952 ms

header.png

header.png

954 ms

header_notifications.png

header_notifications.png

954 ms

font

font

124 ms

input-area-icons.png

input-area-icons.png

1003 ms

MEGAMENU-SPORTOVISTE.jpg

MEGAMENU-SPORTOVISTE.jpg

1030 ms

list-item.png

list-item.png

1034 ms

103 ms

loader.js

loader.js

658 ms

collect

collect

43 ms

collect

collect

47 ms

js

js

80 ms

46 ms

ga-audiences

ga-audiences

13 ms

hp-who.png

hp-who.png

995 ms

fb-button.png

fb-button.png

638 ms

hp-plus.png

hp-plus.png

612 ms

quotes.png

quotes.png

680 ms

hp-switch.png

hp-switch.png

708 ms

footer-socials.png

footer-socials.png

649 ms

virtual-key.js

virtual-key.js

96 ms

smap-jak.css

smap-jak.css

193 ms

suggest.css

suggest.css

286 ms

smap-jak.js

smap-jak.js

476 ms

Accessibility Review

sportcentral.cz accessibility score

85

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

Image elements do not have [alt] attributes

Best Practices

sportcentral.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

High

Page has valid source maps

SEO Factors

sportcentral.cz SEO score

83

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

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

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sportcentral.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 Sportcentral.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

sportcentral.cz

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