Tools & Wizards About Us
ventilatory.cz screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

ventilatory.cz

VENTILÁTORY.cz - Svět větrání na jednom místě

Page Load Speed

13.8 sec in total

First Response

460 ms

Resources Loaded

12.7 sec

Page Rendered

660 ms

ventilatory.cz screenshot

About Website

Welcome to ventilatory.cz homepage info - get ready to check Ventilatory best content for Czech Republic right away, or after learning these important things about ventilatory.cz

Správné větrání potřebuje kvalitní ventilátory a vzduchotechniku. A právě proto jich u nás najdete celou řadu. Jednoduše – Svět větrání na jednom místě.

Visit ventilatory.cz

Key Findings

We analyzed Ventilatory.cz page load time and found that the first response time was 460 ms and then it took 13.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

ventilatory.cz performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value7.3 s

4/100

25%

SI (Speed Index)

Value8.4 s

18/100

10%

TBT (Total Blocking Time)

Value2,990 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.099

90/100

15%

TTI (Time to Interactive)

Value14.8 s

8/100

10%

Network Requests Diagram

ventilatory.cz

460 ms

www.ventilatory.cz

1073 ms

e0e82e5305f188bf95ce36142f0e8359.js

480 ms

bootstrap.min.css

110 ms

projekt.css

336 ms

Our browser made a total of 110 requests to load all elements on the main page. We found that 95% of them (104 requests) were addressed to the original Ventilatory.cz, 2% (2 requests) were made to Connect.facebook.net and 1% (1 request) were made to Cdn.cookie-script.com. The less responsive or slowest element that took the longest time to load (8.4 sec) belongs to the original domain Ventilatory.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 559.8 kB (29%)

Content Size

1.9 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ventilatory.cz main page is 1.9 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. 70% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 152.2 kB

  • Original 172.8 kB
  • After minification 118.4 kB
  • After compression 20.5 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 54.4 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 152.2 kB or 88% of the original size.

Image Optimization

-7%

Potential reduce by 74.7 kB

  • Original 1.1 MB
  • After minification 1.0 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. Ventilatory images are well optimized though.

JavaScript Optimization

-58%

Potential reduce by 332.6 kB

  • Original 575.1 kB
  • After minification 575.1 kB
  • After compression 242.5 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 332.6 kB or 58% of the original size.

CSS Optimization

-0%

Potential reduce by 248 B

  • Original 100.6 kB
  • After minification 100.6 kB
  • After compression 100.4 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. Ventilatory.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 66 (62%)

Requests Now

107

After Optimization

41

  • Images
  • JavaScript
  • CSS

The browser has sent 107 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ventilatory. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ventilatory.cz

ventilatory.cz

460 ms

www.ventilatory.cz

www.ventilatory.cz

1073 ms

e0e82e5305f188bf95ce36142f0e8359.js

e0e82e5305f188bf95ce36142f0e8359.js

480 ms

bootstrap.min.css

bootstrap.min.css

110 ms

projekt.css

projekt.css

336 ms

domain.css

domain.css

345 ms

preklady.js

preklady.js

377 ms

jquery.js

jquery.js

455 ms

jquery-validate.js

jquery-validate.js

354 ms

3it.js

3it.js

446 ms

js.cookie.js

js.cookie.js

455 ms

kosik.js

kosik.js

8354 ms

rAjax.jquery.js

rAjax.jquery.js

515 ms

gtm.js

gtm.js

516 ms

api.js

api.js

31 ms

uvodka.css

uvodka.css

552 ms

carousel.min.js

carousel.min.js

567 ms

sly.js

sly.js

571 ms

uvodka.js

uvodka.js

587 ms

dynamic-26de4f7a-716c5fba07cc993909bd5f5e3178ad6f.js

dynamic-26de4f7a-716c5fba07cc993909bd5f5e3178ad6f.js

594 ms

select2.min.css

select2.min.css

656 ms

jquery-ui-1.8.8.custom.min.css

jquery-ui-1.8.8.custom.min.css

674 ms

select2.min.js

select2.min.js

684 ms

select2_locale_cs.js

select2_locale_cs.js

697 ms

shared.js

shared.js

706 ms

jquery-ui-1.10.4.custom.min.js

jquery-ui-1.10.4.custom.min.js

772 ms

jquery.touchpunch.min.js

jquery.touchpunch.min.js

784 ms

bootstrap.min.js

bootstrap.min.js

793 ms

projekt.js

projekt.js

807 ms

sticker.js

sticker.js

811 ms

lightgallery.min.js

lightgallery.min.js

881 ms

lightgallery.min.css

lightgallery.min.css

893 ms

gtm.js

gtm.js

125 ms

recaptcha__en.js

recaptcha__en.js

125 ms

registrujte-se.png

registrujte-se.png

125 ms

user.png

user.png

126 ms

password-eye.svg

password-eye.svg

126 ms

logo.svg

logo.svg

215 ms

fix-logo.png

fix-logo.png

760 ms

cart.png

cart.png

218 ms

CZ_2.jpg

CZ_2.jpg

515 ms

CZ-Bile_mrizky.jpg

CZ-Bile_mrizky.jpg

430 ms

CZ_Dalap_ELKE_Homepage_660x340.jpg

CZ_Dalap_ELKE_Homepage_660x340.jpg

527 ms

CZ-Dalap-GBV.jpg

CZ-Dalap-GBV.jpg

446 ms

elektricke-topidlo-s-ventilatorem-dalap-a-9-hf-az-9-kw_3493.jpg

elektricke-topidlo-s-ventilatorem-dalap-a-9-hf-az-9-kw_3493.jpg

417 ms

pvc-spojka-vnejsi-hranata-220x90-mm_295.jpg

pvc-spojka-vnejsi-hranata-220x90-mm_295.jpg

463 ms

ventilacni-mrizka-z-vysoce-kvalitniho-extrudovaneho-hliniku-200x200-mm-seda_1494.jpg

ventilacni-mrizka-z-vysoce-kvalitniho-extrudovaneho-hliniku-200x200-mm-seda_1494.jpg

542 ms

pvc-vetraci-mrizka-do-dveri-dvojita-453x90-mm-bila_860.jpg

pvc-vetraci-mrizka-do-dveri-dvojita-453x90-mm-bila_860.jpg

558 ms

pvc-vetraci-mrizka-se-sitkou-pevnou-zaluzii-186x186-mm-a-prirubou-o-150-mm-bila_828.jpg

pvc-vetraci-mrizka-se-sitkou-pevnou-zaluzii-186x186-mm-a-prirubou-o-150-mm-bila_828.jpg

569 ms

aroma-difuzer-s-oscilaci-v-cerne-barve-stadler-form-julia_2696.jpg

aroma-difuzer-s-oscilaci-v-cerne-barve-stadler-form-julia_2696.jpg

622 ms

prumyslovy-ventilator-nastenny-axialni-dalap-rab-turbo-250_1044.jpg

prumyslovy-ventilator-nastenny-axialni-dalap-rab-turbo-250_1044.jpg

635 ms

stylovy-odvlhcovac-vzduchu-stadler-form-theo-10-l-24-h_3269.jpg

stylovy-odvlhcovac-vzduchu-stadler-form-theo-10-l-24-h_3269.jpg

651 ms

white-link.png

white-link.png

668 ms

ventilator_poradna.jpg

ventilator_poradna.jpg

671 ms

koleno_poradna.jpg

koleno_poradna.jpg

724 ms

1532422007-b5ec6711.shrink_110_110.png

1532422007-b5ec6711.shrink_110_110.png

737 ms

1532421989-a6ba834f.shrink_110_110.png

1532421989-a6ba834f.shrink_110_110.png

758 ms

1713419010-fa226e38.shrink_132_132.jpg

1713419010-fa226e38.shrink_132_132.jpg

774 ms

prodejna-foto.jpg

prodejna-foto.jpg

880 ms

1677152367-e0e659f1.shrink_445_253.jpg

1677152367-e0e659f1.shrink_445_253.jpg

826 ms

1528377790-8c4b5bef.crop_320_200.jpg

1528377790-8c4b5bef.crop_320_200.jpg

839 ms

mapa-empty.png

mapa-empty.png

2781 ms

apek.png

apek.png

877 ms

sdk.js

sdk.js

118 ms

small-close.png

small-close.png

873 ms

registrujte-se-after.png

registrujte-se-after.png

921 ms

call.png

call.png

936 ms

currency-drop.png

currency-drop.png

976 ms

currency.png

currency.png

986 ms

search.png

search.png

998 ms

doprava-zd-white.png

doprava-zd-white.png

1008 ms

katalog-produktu.png

katalog-produktu.png

934 ms

category-arrow.png

category-arrow.png

976 ms

sdk.js

sdk.js

75 ms

top-menu-drop.png

top-menu-drop.png

892 ms

carosel-holder-bg-1.jpg

carosel-holder-bg-1.jpg

907 ms

carousel-active.png

carousel-active.png

932 ms

baner1.png

baner1.png

839 ms

baner2.png

baner2.png

885 ms

vh-doprava.png

vh-doprava.png

764 ms

vh-sklad.png

vh-sklad.png

766 ms

vh-vraceni.png

vh-vraceni.png

738 ms

vh-poradna.png

vh-poradna.png

786 ms

v-prumeru-arrow.png

v-prumeru-arrow.png

799 ms

cart-down.png

cart-down.png

801 ms

cart-up.png

cart-up.png

802 ms

to-cart.png

to-cart.png

797 ms

porovnat.png

porovnat.png

800 ms

plastic-bg.png

plastic-bg.png

906 ms

question-bg.png

question-bg.png

798 ms

question-big.png

question-big.png

807 ms

footer-phone.png

footer-phone.png

802 ms

footer-email.png

footer-email.png

807 ms

plastic-dark-bg.png

plastic-dark-bg.png

817 ms

time.png

time.png

827 ms

o-nas-bg.png

o-nas-bg.png

961 ms

newsletter-email.png

newsletter-email.png

828 ms

right-arrow-brown.png

right-arrow-brown.png

827 ms

ft-contact-bg.png

ft-contact-bg.png

802 ms

prodejna-bg.png

prodejna-bg.png

810 ms

prodejna-pin.png

prodejna-pin.png

880 ms

payment-hotove.png

payment-hotove.png

844 ms

payment-dobirka.png

payment-dobirka.png

839 ms

payment-kartou.png

payment-kartou.png

809 ms

payment-prevod.png

payment-prevod.png

848 ms

footer-fb.png

footer-fb.png

866 ms

footer-x.png

footer-x.png

847 ms

footer-yt.png

footer-yt.png

841 ms

footer-insta.png

footer-insta.png

805 ms

scroll-up.png

scroll-up.png

848 ms

Accessibility Review

ventilatory.cz accessibility score

75

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

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

ventilatory.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

High

Page has valid source maps

SEO Factors

ventilatory.cz SEO score

92

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 Ventilatory.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 Ventilatory.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

ventilatory.cz

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