Tools & Wizards About Us
cviceni-zumba.cz screenshot

Report Summary

  • 48

    Performance

    Renders faster than
    66% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

cviceni-zumba.cz

Stránky pro cvičení zumby - zumba pro správnou fitness | cvičení zumba

Page Load Speed

1.8 sec in total

First Response

168 ms

Resources Loaded

1.3 sec

Page Rendered

335 ms

cviceni-zumba.cz screenshot

About Website

Welcome to cviceni-zumba.cz homepage info - get ready to check Cviceni Zumba best content right away, or after learning these important things about cviceni-zumba.cz

Zumba je skvělým sportem pro správné fitness a sportovní výkony. Najděte si svého oblíbeného cvičitele nebo cvičitelku zumby a zkuste sestavu zumby při cvičení. Navštivte naše stránky pro cvičení zumb...

Visit cviceni-zumba.cz

Key Findings

We analyzed Cviceni-zumba.cz page load time and found that the first response time was 168 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

cviceni-zumba.cz performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value3.3 s

91/100

10%

TBT (Total Blocking Time)

Value710 ms

42/100

30%

CLS (Cumulative Layout Shift)

Value0.041

99/100

15%

TTI (Time to Interactive)

Value6.4 s

59/100

10%

Network Requests Diagram

cviceni-zumba.cz

168 ms

cviceni-zumba.cz

222 ms

font-faces

45 ms

_slug_.CxIEXTrI.css

99 ms

logo-YZ9nDvv6grHpj375.svg

49 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 23% of them (3 requests) were addressed to the original Cviceni-zumba.cz, 62% (8 requests) were made to Images.unsplash.com and 8% (1 request) were made to Cdn.zyrosite.com. The less responsive or slowest element that took the longest time to load (783 ms) relates to the external source Images.unsplash.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 100.1 kB (23%)

Content Size

438.9 kB

After Optimization

338.8 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Cviceni-zumba.cz main page is 438.9 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. 20% of websites need less resources to load. Images take 297.1 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 100.1 kB

  • Original 115.8 kB
  • After minification 112.7 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 100.1 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 297.1 kB
  • After minification 297.1 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. Cviceni Zumba images are well optimized though.

CSS Optimization

-0%

Potential reduce by 32 B

  • Original 26.0 kB
  • After minification 26.0 kB
  • After compression 25.9 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. Cviceni-zumba.cz has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

11

After Optimization

11

  • Images
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cviceni Zumba. According to our analytics all requests are already optimized.

Network Requests Diagram

cviceni-zumba.cz

cviceni-zumba.cz

168 ms

cviceni-zumba.cz

cviceni-zumba.cz

222 ms

font-faces

font-faces

45 ms

_slug_.CxIEXTrI.css

_slug_.CxIEXTrI.css

99 ms

logo-YZ9nDvv6grHpj375.svg

logo-YZ9nDvv6grHpj375.svg

49 ms

photo-1524594152303-9fd13543fe6e

photo-1524594152303-9fd13543fe6e

93 ms

photo-1524594152303-9fd13543fe6e

photo-1524594152303-9fd13543fe6e

81 ms

photo-1527186504227-0a47da29a0d0

photo-1527186504227-0a47da29a0d0

78 ms

photo-1527186504227-0a47da29a0d0

photo-1527186504227-0a47da29a0d0

783 ms

photo-1517931524326-bdd55a541177

photo-1517931524326-bdd55a541177

481 ms

photo-1517931524326-bdd55a541177

photo-1517931524326-bdd55a541177

79 ms

photo-1606903037631-f09fd0bd74b4

photo-1606903037631-f09fd0bd74b4

448 ms

photo-1606903037631-f09fd0bd74b4

photo-1606903037631-f09fd0bd74b4

486 ms

Accessibility Review

cviceni-zumba.cz accessibility score

100

Accessibility Issues

Best Practices

cviceni-zumba.cz best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

cviceni-zumba.cz SEO score

100

Search Engine Optimization Advices

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 Cviceni-zumba.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 Cviceni-zumba.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

cviceni-zumba.cz

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