Tools & Wizards About Us
svet-oken.cz screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

svet-oken.cz

Svět oken pro Vás již od roku 1999 - česká firma, 36 poboček, tisíce realizací | Svět Oken s.r.o.

Page Load Speed

5 sec in total

First Response

529 ms

Resources Loaded

3.9 sec

Page Rendered

504 ms

svet-oken.cz screenshot

About Website

Visit svet-oken.cz now to see the best up-to-date Svet Oken content for Czech Republic and also check out these interesting facts you probably never knew about svet-oken.cz

Vyberte si plastová okna a dveře nebo garážová vrata za nejlepší ceny. Každý měsíc akce na plastová i hliníková okna a dveře, stínící techniku, zasklení balkonů a lodžií a pergoly.

Visit svet-oken.cz

Key Findings

We analyzed Svet-oken.cz page load time and found that the first response time was 529 ms and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

svet-oken.cz performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

39/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

69/100

25%

SI (Speed Index)

Value7.7 s

24/100

10%

TBT (Total Blocking Time)

Value550 ms

54/100

30%

CLS (Cumulative Layout Shift)

Value0.132

81/100

15%

TTI (Time to Interactive)

Value13.9 s

10/100

10%

Network Requests Diagram

svet-oken.cz

529 ms

svet-oken.cz

437 ms

www.svet-oken.cz

747 ms

main.css

229 ms

zmn1cna.js

89 ms

Our browser made a total of 102 requests to load all elements on the main page. We found that 75% of them (76 requests) were addressed to the original Svet-oken.cz, 8% (8 requests) were made to Use.typekit.net and 3% (3 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Svet-oken.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 636.7 kB (13%)

Content Size

4.9 MB

After Optimization

4.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Svet-oken.cz main page is 4.9 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. 60% of websites need less resources to load. Images take 4.7 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 44.2 kB

  • Original 55.0 kB
  • After minification 51.7 kB
  • After compression 10.8 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 44.2 kB or 80% of the original size.

Image Optimization

-13%

Potential reduce by 585.9 kB

  • Original 4.7 MB
  • After minification 4.1 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. Obviously, Svet Oken needs image optimization as it can save up to 585.9 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-3%

Potential reduce by 2.9 kB

  • Original 114.0 kB
  • After minification 114.0 kB
  • After compression 111.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-17%

Potential reduce by 3.7 kB

  • Original 21.7 kB
  • After minification 21.7 kB
  • After compression 18.0 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. Svet-oken.cz needs all CSS files to be minified and compressed as it can save up to 3.7 kB or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (24%)

Requests Now

91

After Optimization

69

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Svet Oken. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

svet-oken.cz

svet-oken.cz

529 ms

svet-oken.cz

svet-oken.cz

437 ms

www.svet-oken.cz

www.svet-oken.cz

747 ms

main.css

main.css

229 ms

zmn1cna.js

zmn1cna.js

89 ms

jquery-3.2.1.min.js

jquery-3.2.1.min.js

457 ms

slick.min.js

slick.min.js

344 ms

scripts.js

scripts.js

344 ms

jquery.fancybox.min.js

jquery.fancybox.min.js

455 ms

gtm.js

gtm.js

82 ms

overena_ifirmy_black150.png

overena_ifirmy_black150.png

368 ms

logo.svg

logo.svg

131 ms

phone.png

phone.png

209 ms

calculator.png

calculator.png

209 ms

30.jpg

30.jpg

444 ms

32.jpg

32.jpg

365 ms

56.png

56.png

452 ms

34.jpg

34.jpg

443 ms

35.jpg

35.jpg

451 ms

33.jpg

33.jpg

660 ms

17.jpg

17.jpg

553 ms

20.jpg

20.jpg

549 ms

21.jpg

21.jpg

653 ms

49.jpg

49.jpg

551 ms

50.jpg

50.jpg

552 ms

51.jpg

51.jpg

656 ms

52.jpg

52.jpg

658 ms

41.jpg

41.jpg

659 ms

42.jpg

42.jpg

660 ms

43.jpg

43.jpg

762 ms

58.jpg

58.jpg

763 ms

59.jpg

59.jpg

765 ms

60.jpg

60.jpg

766 ms

57.jpg

57.jpg

871 ms

61.jpg

61.jpg

767 ms

62.jpg

62.jpg

869 ms

63.jpg

63.jpg

870 ms

24.jpg

24.jpg

872 ms

25.jpg

25.jpg

872 ms

search.png

search.png

873 ms

logo-small.svg

logo-small.svg

976 ms

8.jpg

8.jpg

978 ms

16.jpg

16.jpg

957 ms

48.jpg

48.jpg

991 ms

banner.js

banner.js

96 ms

js

js

149 ms

analytics.js

analytics.js

29 ms

fbevents.js

fbevents.js

50 ms

rc.js

rc.js

704 ms

40.jpg

40.jpg

854 ms

26.jpg

26.jpg

852 ms

collect

collect

40 ms

collect

collect

199 ms

23.jpg

23.jpg

879 ms

4.png

4.png

1304 ms

player_api

player_api

210 ms

sdk.js

sdk.js

154 ms

10.png

10.png

1249 ms

13.jpg

13.jpg

1143 ms

d

d

219 ms

d

d

168 ms

d

d

181 ms

d

d

186 ms

d

d

118 ms

d

d

197 ms

d

d

197 ms

overena_ifirmy_black150.png

overena_ifirmy_black150.png

434 ms

ga-audiences

ga-audiences

134 ms

okna.jpg

okna.jpg

830 ms

sdk.js

sdk.js

16 ms

218 ms

www-widgetapi.js

www-widgetapi.js

5 ms

dvere.jpg

dvere.jpg

858 ms

balkony.jpg

balkony.jpg

746 ms

stinici_technika.jpg

stinici_technika.jpg

854 ms

garazova_vrata.jpg

garazova_vrata.jpg

856 ms

p.gif

p.gif

33 ms

sluzby.jpg

sluzby.jpg

966 ms

flag.png

flag.png

861 ms

roll.png

roll.png

863 ms

smile.png

smile.png

966 ms

puzzle.png

puzzle.png

865 ms

calculations.png

calculations.png

865 ms

marker.png

marker.png

961 ms

map_czech_republic.png

map_czech_republic.png

963 ms

light.png

light.png

964 ms

calculator2.png

calculator2.png

965 ms

44.jpg

44.jpg

865 ms

170.jpg

170.jpg

865 ms

153.jpg

153.jpg

960 ms

152.jpg

152.jpg

1068 ms

nfso-logo.png

nfso-logo.png

964 ms

retargeting

retargeting

101 ms

fod-logo.png

fod-logo.png

862 ms

GEALAN_Fenster-Systeme_logo.png

GEALAN_Fenster-Systeme_logo.png

863 ms

spolehliva-firma-2023.png

spolehliva-firma-2023.png

866 ms

certifikaty-patka.png

certifikaty-patka.png

960 ms

logo-footer.svg

logo-footer.svg

964 ms

facebook.png

facebook.png

966 ms

somfy_banner_maly.png

somfy_banner_maly.png

861 ms

EU%20vzdelavani%20ikona_new.png

EU%20vzdelavani%20ikona_new.png

867 ms

EU.png

EU.png

964 ms

Accessibility Review

svet-oken.cz accessibility score

73

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-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

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.

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

Links do not have a discernible name

Best Practices

svet-oken.cz best practices score

58

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

svet-oken.cz SEO score

91

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 Svet-oken.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 Svet-oken.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

svet-oken.cz

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