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stz.sk screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

stz.sk

Aktuálne informácie

Page Load Speed

4.6 sec in total

First Response

432 ms

Resources Loaded

3.8 sec

Page Rendered

409 ms

stz.sk screenshot

About Website

Click here to check amazing Stz content for Slovakia. Otherwise, check out these important facts you probably never knew about stz.sk

TENIS - STZ - SLOVENSKÝ TENISOVÝ ZVÂZ

Visit stz.sk

Key Findings

We analyzed Stz.sk page load time and found that the first response time was 432 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

stz.sk performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

44/100

10%

LCP (Largest Contentful Paint)

Value32.8 s

0/100

25%

SI (Speed Index)

Value12.5 s

3/100

10%

TBT (Total Blocking Time)

Value3,410 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value25.6 s

0/100

10%

Network Requests Diagram

stz.sk

432 ms

www.stz.sk

965 ms

plusone.js

28 ms

global.css

212 ms

layout.css

323 ms

Our browser made a total of 101 requests to load all elements on the main page. We found that 78% of them (79 requests) were addressed to the original Stz.sk, 6% (6 requests) were made to Youtube.com and 4% (4 requests) were made to Jnn-pa.googleapis.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Stz.sk.

Page Optimization Overview & Recommendations

Page size can be reduced by 372.0 kB (10%)

Content Size

3.8 MB

After Optimization

3.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Stz.sk main page is 3.8 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. 65% of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 35.8 kB

  • Original 48.3 kB
  • After minification 46.3 kB
  • After compression 12.4 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 35.8 kB or 74% of the original size.

Image Optimization

-4%

Potential reduce by 115.4 kB

  • Original 2.9 MB
  • After minification 2.8 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. Stz images are well optimized though.

JavaScript Optimization

-25%

Potential reduce by 178.7 kB

  • Original 710.7 kB
  • After minification 691.7 kB
  • After compression 532.0 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 178.7 kB or 25% of the original size.

CSS Optimization

-38%

Potential reduce by 42.1 kB

  • Original 111.4 kB
  • After minification 102.2 kB
  • After compression 69.3 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. Stz.sk needs all CSS files to be minified and compressed as it can save up to 42.1 kB or 38% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (34%)

Requests Now

97

After Optimization

64

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 97 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

stz.sk

stz.sk

432 ms

www.stz.sk

www.stz.sk

965 ms

plusone.js

plusone.js

28 ms

global.css

global.css

212 ms

layout.css

layout.css

323 ms

jquery.fancybox.css

jquery.fancybox.css

326 ms

fonts.css

fonts.css

326 ms

colorbox.css

colorbox.css

326 ms

main.js

main.js

326 ms

jquery-min.js

jquery-min.js

536 ms

jquery.plugins.js

jquery.plugins.js

432 ms

jquery.cycle.min.js

jquery.cycle.min.js

546 ms

jquery.colorbox.min.js

jquery.colorbox.min.js

433 ms

jquery.bxSlider.min.js

jquery.bxSlider.min.js

547 ms

jquery.fancybox.js

jquery.fancybox.js

645 ms

ie9-hacks.js

ie9-hacks.js

548 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

6 ms

api.js

api.js

37 ms

fancy-box.js

fancy-box.js

449 ms

bg-header.jpg

bg-header.jpg

152 ms

klein-schmiedlova-bg-main-page-2024-1.png

klein-schmiedlova-bg-main-page-2024-1.png

1425 ms

peugeot_202105.jpg

peugeot_202105.jpg

153 ms

jatbanka.jpg

jatbanka.jpg

159 ms

coop-jednota.jpg

coop-jednota.jpg

153 ms

adifex-logo-2023.png

adifex-logo-2023.png

160 ms

logo-podcast-strip.png

logo-podcast-strip.png

293 ms

logo-rss-strip.png

logo-rss-strip.png

291 ms

logo-spotify-strip.png

logo-spotify-strip.png

291 ms

logo-apple-strip.png

logo-apple-strip.png

292 ms

logo-google-strip.png

logo-google-strip.png

291 ms

news-blank.jpg

news-blank.jpg

690 ms

-2m.jpg

-2m.jpg

691 ms

-1m.jpg

-1m.jpg

688 ms

-1m.jpg

-1m.jpg

688 ms

-1m.jpg

-1m.jpg

690 ms

-1m.jpg

-1m.jpg

692 ms

-1m.jpg

-1m.jpg

691 ms

-1m.jpg

-1m.jpg

692 ms

msvassr-2024-01.jpg

msvassr-2024-01.jpg

694 ms

msvassr-2024-1-50.jpg

msvassr-2024-1-50.jpg

693 ms

mcr-s_2024.jpg

mcr-s_2024.jpg

862 ms

logo-nsc-2023_200x200.png

logo-nsc-2023_200x200.png

862 ms

ntcke-200x200_2024-05.jpg

ntcke-200x200_2024-05.jpg

860 ms

peugeot_508_200x200_2024_01.jpg

peugeot_508_200x200_2024_01.jpg

861 ms

sporty-leto-200x200-2023.jpg

sporty-leto-200x200-2023.jpg

1205 ms

dajte-deti-na-tenis3.jpg

dajte-deti-na-tenis3.jpg

949 ms

dunlop-profi-2015.jpg

dunlop-profi-2015.jpg

948 ms

stz-slovensky-tenisovy-zvaz.jpg

stz-slovensky-tenisovy-zvaz.jpg

947 ms

pix.png

pix.png

947 ms

foot-logo.jpg

foot-logo.jpg

1203 ms

peugeot_508_285x60_v2_2024_01.jpg

peugeot_508_285x60_v2_2024_01.jpg

1203 ms

dunlop-2019-6-290x60.jpg

dunlop-2019-6-290x60.jpg

1202 ms

peugeot_508SW_285x60_v2_2024_01.jpg

peugeot_508SW_285x60_v2_2024_01.jpg

1203 ms

but-odeslat.png

but-odeslat.png

1208 ms

-_DId8q5AHo

-_DId8q5AHo

147 ms

anApj5vB5zA

anApj5vB5zA

284 ms

but-strip-right.jpg

but-strip-right.jpg

1203 ms

recaptcha__en.js

recaptcha__en.js

56 ms

analytics.js

analytics.js

38 ms

collect

collect

57 ms

but-strip-left.jpg

but-strip-left.jpg

1062 ms

bg-slider.png

bg-slider.png

1060 ms

www-player.css

www-player.css

32 ms

www-embed-player.js

www-embed-player.js

68 ms

base.js

base.js

142 ms

bg-slider-menu-item.png

bg-slider-menu-item.png

1058 ms

js

js

530 ms

-1tn.jpg

-1tn.jpg

1261 ms

bg-slider-box.png

bg-slider-box.png

1152 ms

bg-slider-head-line.png

bg-slider-head-line.png

1027 ms

-1tn.jpg

-1tn.jpg

1129 ms

-1tn.jpg

-1tn.jpg

1026 ms

-1tn.jpg

-1tn.jpg

1209 ms

bg-h1.jpg

bg-h1.jpg

1128 ms

ad_status.js

ad_status.js

375 ms

eibAoDspQrxJEgfHXHg_r2ZFWrvhsrgEHNatK7QQLfo.js

eibAoDspQrxJEgfHXHg_r2ZFWrvhsrgEHNatK7QQLfo.js

261 ms

embed.js

embed.js

209 ms

bg-h1-index-ico.png

bg-h1-index-ico.png

733 ms

bg-news-item.png

bg-news-item.png

812 ms

but-vice-zde.png

but-vice-zde.png

812 ms

bg-top-button.png

bg-top-button.png

819 ms

bg-ntc-etenis-zso-nav.png

bg-ntc-etenis-zso-nav.png

819 ms

ico-navigace-on.png

ico-navigace-on.png

837 ms

logo.jpg

logo.jpg

921 ms

bg-search-blok.png

bg-search-blok.png

920 ms

but-search-ok.png

but-search-ok.png

919 ms

bg-top-menu-item.png

bg-top-menu-item.png

831 ms

bg-foot.jpg

bg-foot.jpg

759 ms

bg-foot-block-first.jpg

bg-foot-block-first.jpg

778 ms

bg-foot-block.jpg

bg-foot-block.jpg

863 ms

id

id

44 ms

bg-foot-link.png

bg-foot-link.png

860 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

82 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

83 ms

Create

Create

301 ms

Create

Create

407 ms

bg-foot-block-last.jpg

bg-foot-block-last.jpg

779 ms

bg-slider-menu-item-on.png

bg-slider-menu-item-on.png

787 ms

GenerateIT

GenerateIT

18 ms

GenerateIT

GenerateIT

21 ms

print.css

print.css

112 ms

Accessibility Review

stz.sk accessibility score

68

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] values are not valid

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

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

Best Practices

stz.sk best practices score

75

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

Page has valid source maps

SEO Factors

stz.sk SEO score

62

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

High

robots.txt is not valid

Language and Encoding

  • Language Detected

    SK

  • Language Claimed

    SK

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Stz.sk can be misinterpreted by Google and other search engines. Our service has detected that Slovak is used on the page, and it matches the claimed language. Our system also found out that Stz.sk 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

stz.sk

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