Tools & Wizards About Us
dvere.cz screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

dvere.cz

E-shop Solodoor

Page Load Speed

7.5 sec in total

First Response

360 ms

Resources Loaded

6.8 sec

Page Rendered

332 ms

dvere.cz screenshot

About Website

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

SOLODOOR – český výrobce interiérových i vchodových dveří. Široký výběr modelů, dekorů, bezpečnostních tříd a zárubní. Moderní design, vysoká kvalita a dlouhá životnost. Nakupujte dveře online.

Visit dvere.cz

Key Findings

We analyzed Dvere.cz page load time and found that the first response time was 360 ms and then it took 7.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

dvere.cz performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.1 s

3/100

10%

LCP (Largest Contentful Paint)

Value13.1 s

0/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value620 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0.791

5/100

15%

TTI (Time to Interactive)

Value15.6 s

6/100

10%

Network Requests Diagram

dvere.cz

360 ms

www.dvere.cz

931 ms

common.css

241 ms

styles.css

842 ms

slimbox2.css

242 ms

Our browser made a total of 98 requests to load all elements on the main page. We found that 94% of them (92 requests) were addressed to the original Dvere.cz, 3% (3 requests) were made to Google-analytics.com and 2% (2 requests) were made to C.imedia.cz. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Dvere.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 549.6 kB (40%)

Content Size

1.4 MB

After Optimization

825.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dvere.cz main page is 1.4 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. 25% of websites need less resources to load. Images take 711.4 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 37.4 kB

  • Original 48.9 kB
  • After minification 45.5 kB
  • After compression 11.4 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 37.4 kB or 77% of the original size.

Image Optimization

-8%

Potential reduce by 55.1 kB

  • Original 711.4 kB
  • After minification 656.3 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. Dvere images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 331.2 kB

  • Original 465.0 kB
  • After minification 416.7 kB
  • After compression 133.8 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 331.2 kB or 71% of the original size.

CSS Optimization

-84%

Potential reduce by 126.0 kB

  • Original 149.6 kB
  • After minification 111.4 kB
  • After compression 23.6 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. Dvere.cz needs all CSS files to be minified and compressed as it can save up to 126.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 44 (47%)

Requests Now

94

After Optimization

50

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 94 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dvere. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dvere.cz

dvere.cz

360 ms

www.dvere.cz

www.dvere.cz

931 ms

common.css

common.css

241 ms

styles.css

styles.css

842 ms

slimbox2.css

slimbox2.css

242 ms

jquery.jqzoom.css

jquery.jqzoom.css

243 ms

jquery.jrating.css

jquery.jrating.css

244 ms

jquery-ui.css

jquery-ui.css

849 ms

jquery.jcarousel.css

jquery.jcarousel.css

480 ms

jquery.js

jquery.js

1081 ms

jquery-ui-1.8.9.custom.min.js

jquery-ui-1.8.9.custom.min.js

1324 ms

jquery.form.js

jquery.form.js

823 ms

jquery.jqzoom-core-pack.js

jquery.jqzoom-core-pack.js

846 ms

jquery.jrating.js

jquery.jrating.js

1183 ms

jquery.selectBox.min.js

jquery.selectBox.min.js

1314 ms

jquery.jscrollpane.min.js

jquery.jscrollpane.min.js

1319 ms

jquery.scrollTo.js

jquery.scrollTo.js

1096 ms

zvetsovac.js

zvetsovac.js

1318 ms

trailers.js

trailers.js

1344 ms

jquery.tabslideout-1.3.js

jquery.tabslideout-1.3.js

1523 ms

filters.js

filters.js

1550 ms

alignheights.js

alignheights.js

1553 ms

jquery.autocomplete.js

jquery.autocomplete.js

1557 ms

jquery.jcarousel.min.js

jquery.jcarousel.min.js

1803 ms

cartwindow.js

cartwindow.js

1553 ms

montazni_firmy.js

montazni_firmy.js

1763 ms

slimbox2.js

slimbox2.js

1690 ms

jquery.param.rewrite.js

jquery.param.rewrite.js

1689 ms

external_links.js

external_links.js

1688 ms

jquery.jcarousel.js

jquery.jcarousel.js

1929 ms

jquery.jcarousel.css

jquery.jcarousel.css

1900 ms

retargeting.js

retargeting.js

340 ms

infopanel.php

infopanel.php

1975 ms

novinky.js

novinky.js

1697 ms

clickheat.js

clickheat.js

710 ms

error404.php

error404.php

571 ms

ga.js

ga.js

36 ms

retargeting

retargeting

167 ms

strana.png

strana.png

166 ms

page.png

page.png

231 ms

logo.png

logo.png

361 ms

homelink.png

homelink.png

243 ms

71_cs.jpg

71_cs.jpg

613 ms

83_cs.jpg

83_cs.jpg

898 ms

71_cs.jpg

71_cs.jpg

956 ms

80_cs.jpg

80_cs.jpg

951 ms

65_cs.jpg

65_cs.jpg

1090 ms

52_cs.jpg

52_cs.jpg

833 ms

72_cs.jpg

72_cs.jpg

1098 ms

65_cs.jpg

65_cs.jpg

1309 ms

1_vertika-dub-zl.jpg

1_vertika-dub-zl.jpg

1178 ms

1_m1.jpg

1_m1.jpg

1240 ms

1_dvere_plne_dub_japonsky_v.jpg

1_dvere_plne_dub_japonsky_v.jpg

1284 ms

1_silver_1.jpg

1_silver_1.jpg

1502 ms

1_scrigno_kit.jpg

1_scrigno_kit.jpg

1534 ms

1_santiago_1_legno_732.jpg

1_santiago_1_legno_732.jpg

1464 ms

1_santiago_7_legno_732.jpg

1_santiago_7_legno_732.jpg

1512 ms

8_cs.jpg

8_cs.jpg

1637 ms

9_cs.jpg

9_cs.jpg

1670 ms

10_cs.jpg

10_cs.jpg

1826 ms

11_cs.jpg

11_cs.jpg

1867 ms

56_cs.jpg

56_cs.jpg

1869 ms

47_cs.jpg

47_cs.jpg

2011 ms

edvere.png

edvere.png

1990 ms

ikona_dvereeu.gif

ikona_dvereeu.gif

1911 ms

ikona_porta.gif

ikona_porta.gif

2069 ms

logo_dvere_sk.jpg

logo_dvere_sk.jpg

2107 ms

menu.png

menu.png

2095 ms

menu2.png

menu2.png

2133 ms

submenu2.png

submenu2.png

2203 ms

submenu3.png

submenu3.png

2234 ms

submenu.png

submenu.png

2295 ms

submenu4.png

submenu4.png

2324 ms

kosik2.png

kosik2.png

2333 ms

__utm.gif

__utm.gif

12 ms

__utm.gif

__utm.gif

68 ms

sysbar.png

sysbar.png

2234 ms

slide.png

slide.png

2237 ms

search2.png

search2.png

2260 ms

prolni.png

prolni.png

2208 ms

prolni2.png

prolni2.png

1982 ms

quick.png

quick.png

1765 ms

odkazy.png

odkazy.png

1746 ms

odkazy2.png

odkazy2.png

1752 ms

sloupce.png

sloupce.png

1784 ms

pata.png

pata.png

1837 ms

novinky.png

novinky.png

1734 ms

partneri.png

partneri.png

1661 ms

partneri3.png

partneri3.png

1645 ms

partneri2.png

partneri2.png

1654 ms

map2.png

map2.png

1770 ms

ui-bg_flat_75_ffffff_40x100.png

ui-bg_flat_75_ffffff_40x100.png

1605 ms

vrstva_kosik.png

vrstva_kosik.png

2049 ms

kosik_nadpis.png

kosik_nadpis.png

1612 ms

close.png

close.png

1631 ms

loading.gif

loading.gif

1544 ms

posuv.png

posuv.png

1758 ms

print.css

print.css

121 ms

Accessibility Review

dvere.cz accessibility score

59

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

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

dvere.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

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

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

dvere.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

    WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dvere.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 Dvere.cz main page’s claimed encoding is windows-1250. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

dvere.cz

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