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vono.cz screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

vono.cz

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Page Load Speed

26.7 sec in total

First Response

466 ms

Resources Loaded

24.1 sec

Page Rendered

2.1 sec

vono.cz screenshot

About Website

Welcome to vono.cz homepage info - get ready to check Vono best content right away, or after learning these important things about vono.cz

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Key Findings

We analyzed Vono.cz page load time and found that the first response time was 466 ms and then it took 26.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% 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

vono.cz performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value10.1 s

0/100

25%

SI (Speed Index)

Value12.9 s

2/100

10%

TBT (Total Blocking Time)

Value1,070 ms

25/100

30%

CLS (Cumulative Layout Shift)

Value0.087

93/100

15%

TTI (Time to Interactive)

Value9.8 s

28/100

10%

Network Requests Diagram

vono.cz

466 ms

www.vono.cz

1597 ms

k2.css

102 ms

modal.css

193 ms

normalize.css

195 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 91% of them (62 requests) were addressed to the original Vono.cz, 6% (4 requests) were made to Google-analytics.com and 1% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (20.2 sec) relates to the external source Toplist.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 62.6 kB (8%)

Content Size

743.2 kB

After Optimization

680.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vono.cz main page is 743.2 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. 45% of websites need less resources to load. Images take 434.9 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 36.5 kB

  • Original 45.7 kB
  • After minification 43.2 kB
  • After compression 9.1 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 36.5 kB or 80% of the original size.

Image Optimization

-2%

Potential reduce by 9.9 kB

  • Original 434.9 kB
  • After minification 425.0 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. Vono images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 6.0 kB

  • Original 219.6 kB
  • After minification 219.6 kB
  • After compression 213.5 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

-23%

Potential reduce by 10.1 kB

  • Original 43.1 kB
  • After minification 42.0 kB
  • After compression 33.0 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. Vono.cz needs all CSS files to be minified and compressed as it can save up to 10.1 kB or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 40 (63%)

Requests Now

64

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vono. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 20 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vono.cz

vono.cz

466 ms

www.vono.cz

www.vono.cz

1597 ms

k2.css

k2.css

102 ms

modal.css

modal.css

193 ms

normalize.css

normalize.css

195 ms

layout.css

layout.css

929 ms

joomla.css

joomla.css

1005 ms

system.css

system.css

1065 ms

template.css

template.css

199 ms

menu.css

menu.css

288 ms

gk.stuff.css

gk.stuff.css

304 ms

vm.css

vm.css

302 ms

style2.css

style2.css

383 ms

typography.style2.css

typography.style2.css

400 ms

typography.iconset.style2.css

typography.iconset.style2.css

396 ms

override.css

override.css

477 ms

www.vono.cz

www.vono.cz

1101 ms

screen.css

screen.css

498 ms

facebox.css

facebox.css

573 ms

mootools-core.js

mootools-core.js

705 ms

core.js

core.js

668 ms

jquery.min.js

jquery.min.js

13 ms

k2.js

k2.js

763 ms

caption.js

caption.js

804 ms

mootools-more.js

mootools-more.js

1215 ms

modal.js

modal.js

903 ms

gk.scripts.js

gk.scripts.js

1002 ms

gk.menu.js

gk.menu.js

1021 ms

script.mootools.js

script.mootools.js

1213 ms

jquery.min.js

jquery.min.js

1333 ms

jquery.noconflict.js

jquery.noconflict.js

1214 ms

vmsite.js

vmsite.js

1213 ms

facebox.js

facebox.js

1330 ms

vmprices.js

vmprices.js

1331 ms

script.mootools.js

script.mootools.js

1424 ms

analytics.js

analytics.js

256 ms

ga.js

ga.js

245 ms

bg2.jpg

bg2.jpg

433 ms

logo-vonosport2.png

logo-vonosport2.png

218 ms

search_bg.png

search_bg.png

219 ms

banner%20VONO.jpg

banner%20VONO.jpg

557 ms

cart_shadow.png

cart_shadow.png

219 ms

cart_white.png

cart_white.png

217 ms

stories.virtuemart.product.rozlisovaci_dresy_vononsp-657.jpg

stories.virtuemart.product.rozlisovaci_dresy_vononsp-657.jpg

220 ms

cart_color.png

cart_color.png

225 ms

stories.virtuemart.product.hokejove_dresy_hd2-bnsp-657.jpg

stories.virtuemart.product.hokejove_dresy_hd2-bnsp-657.jpg

225 ms

stories.virtuemart.product.hokejove_dresy_hd1nsp-657.jpg

stories.virtuemart.product.hokejove_dresy_hd1nsp-657.jpg

224 ms

stories.virtuemart.product.fotbalove_trenkynsp-657.jpg

stories.virtuemart.product.fotbalove_trenkynsp-657.jpg

394 ms

stories.virtuemart.product.fotbalove_stulpny_podpinkounsp-657.jpg

stories.virtuemart.product.fotbalove_stulpny_podpinkounsp-657.jpg

406 ms

stories.virtuemart.product.fotbalove_dresy_kr-dnsp-657.jpg

stories.virtuemart.product.fotbalove_dresy_kr-dnsp-657.jpg

406 ms

stories.virtuemart.product.fotbalove_dresy_sdk-2nsp-657.jpg

stories.virtuemart.product.fotbalove_dresy_sdk-2nsp-657.jpg

397 ms

stories.virtuemart.product.fotbalovy_dres_sdk-2-bnsp-657.jpg

stories.virtuemart.product.fotbalovy_dres_sdk-2-bnsp-657.jpg

398 ms

stories.virtuemart.product.florbalovy_vak_vono5nsp-657.jpg

stories.virtuemart.product.florbalovy_vak_vono5nsp-657.jpg

398 ms

stories.virtuemart.product.brankarsky-set-vono-classic-a-exclusiv3nsp-657.jpg

stories.virtuemart.product.brankarsky-set-vono-classic-a-exclusiv3nsp-657.jpg

408 ms

product_gallery_interface.png

product_gallery_interface.png

408 ms

Florbalove_vybaveni.jpg

Florbalove_vybaveni.jpg

581 ms

Fotbalove_dresy.jpg

Fotbalove_dresy.jpg

585 ms

Hokej_hokejbal.jpg

Hokej_hokejbal.jpg

522 ms

Servis_opravy.jpg

Servis_opravy.jpg

600 ms

MS_2015_R_IIHF.PNG

MS_2015_R_IIHF.PNG

890 ms

count.asp

count.asp

20185 ms

collect

collect

223 ms

__utm.gif

__utm.gif

34 ms

przez.png

przez.png

200 ms

small.desktop.css

small.desktop.css

111 ms

tablet.css

tablet.css

100 ms

small.tablet.css

small.tablet.css

115 ms

mobile.css

mobile.css

102 ms

Accessibility Review

vono.cz accessibility score

66

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

vono.cz best practices score

67

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

Browser errors were logged to the console

SEO Factors

vono.cz SEO score

88

Search Engine Optimization Advices

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 Vono.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 Vono.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

vono.cz

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