Tools & Wizards About Us
nejstavebniny.cz screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

nejstavebniny.cz

Stavebniny online: Vše pro stavbu a rekonstrukci | NEJstavebniny

Page Load Speed

5.8 sec in total

First Response

402 ms

Resources Loaded

4.7 sec

Page Rendered

661 ms

nejstavebniny.cz screenshot

About Website

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

Stavte chytře a výhodně! Široký sortiment stavebnin pro zateplení, střechy i interiér. Kvalitní materiály, odborné poradenství a rychlá doprava po celé ČR. Vše pro vaši stavbu na jednom místě – nakupt...

Visit nejstavebniny.cz

Key Findings

We analyzed Nejstavebniny.cz page load time and found that the first response time was 402 ms and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

nejstavebniny.cz performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value13.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value26.4 s

0/100

25%

SI (Speed Index)

Value14.2 s

1/100

10%

TBT (Total Blocking Time)

Value1,140 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value0.215

58/100

15%

TTI (Time to Interactive)

Value21.2 s

1/100

10%

Network Requests Diagram

nejstavebniny.cz

402 ms

nejstavebniny.cz

397 ms

www.nejstavebniny.cz

1907 ms

css2

51 ms

font-awesome.min.css

374 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 74% of them (61 requests) were addressed to the original Nejstavebniny.cz, 7% (6 requests) were made to Fonts.gstatic.com and 6% (5 requests) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Nejstavebniny.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.5 MB (31%)

Content Size

4.9 MB

After Optimization

3.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nejstavebniny.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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 206.8 kB

  • Original 236.9 kB
  • After minification 222.5 kB
  • After compression 30.1 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 206.8 kB or 87% of the original size.

Image Optimization

-11%

Potential reduce by 339.6 kB

  • Original 3.0 MB
  • After minification 2.6 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, NEJstavebniny needs image optimization as it can save up to 339.6 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-58%

Potential reduce by 943.9 kB

  • Original 1.6 MB
  • After minification 1.6 MB
  • After compression 681.1 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 943.9 kB or 58% of the original size.

CSS Optimization

-43%

Potential reduce by 24.0 kB

  • Original 55.6 kB
  • After minification 55.6 kB
  • After compression 31.7 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. Nejstavebniny.cz needs all CSS files to be minified and compressed as it can save up to 24.0 kB or 43% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (34%)

Requests Now

71

After Optimization

47

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NEJstavebniny. 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 from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

nejstavebniny.cz

nejstavebniny.cz

402 ms

nejstavebniny.cz

nejstavebniny.cz

397 ms

www.nejstavebniny.cz

www.nejstavebniny.cz

1907 ms

css2

css2

51 ms

font-awesome.min.css

font-awesome.min.css

374 ms

styles.css

styles.css

1646 ms

jquery.min.js

jquery.min.js

37 ms

jquery-ui.min.js

jquery-ui.min.js

43 ms

config.js.php

config.js.php

1726 ms

js-scripts.js

js-scripts.js

1889 ms

jsphp-scripts.js

jsphp-scripts.js

1399 ms

api.js

api.js

55 ms

js

js

83 ms

document-ready.js

document-ready.js

212 ms

rc.js

rc.js

834 ms

gtm.js

gtm.js

151 ms

nejs-logo-01.png

nejs-logo-01.png

136 ms

search.svg

search.svg

133 ms

user.png

user.png

135 ms

cart.png

cart.png

134 ms

Best%201350.jpg

Best%201350.jpg

442 ms

Artboard%20%E2%80%93%206.png

Artboard%20%E2%80%93%206.png

269 ms

REFAGLASS%201350X200.jpg

REFAGLASS%201350X200.jpg

295 ms

DORNITE%201350X200.png

DORNITE%201350X200.png

297 ms

TERRAN%201350x200.jpg

TERRAN%201350x200.jpg

443 ms

multinorm%201350x200%20baner.jpg

multinorm%201350x200%20baner.jpg

270 ms

AKU%20cihla.jpg

AKU%20cihla.jpg

292 ms

omak-plechova-stresni-krytina.jpg

omak-plechova-stresni-krytina.jpg

301 ms

vata.jpg

vata.jpg

442 ms

sp%C3%A1rovac%C3%AD%20hmoty.png

sp%C3%A1rovac%C3%AD%20hmoty.png

497 ms

8890012.jpg

8890012.jpg

443 ms

SEKERA.jpg

SEKERA.jpg

444 ms

zatrav%C5%88ovac%C3%AD%20dla%C5%BEby%20gutta.jpg

zatrav%C5%88ovac%C3%AD%20dla%C5%BEby%20gutta.jpg

560 ms

procento.jpg

procento.jpg

496 ms

ajax-loader.gif

ajax-loader.gif

497 ms

minus.png

minus.png

498 ms

plus.png

plus.png

498 ms

cart.svg

cart.svg

575 ms

likov_upraven%C3%A9.png

likov_upraven%C3%A9.png

577 ms

329.png

329.png

576 ms

kooperativa_01-e1653387472888.png

kooperativa_01-e1653387472888.png

579 ms

Bayos%20(1).png

Bayos%20(1).png

582 ms

katepal.jpg

katepal.jpg

653 ms

lscrigno.png

lscrigno.png

668 ms

eclisse.png

eclisse.png

670 ms

hasoft.png

hasoft.png

669 ms

mea.png

mea.png

672 ms

soudal-hr.jpg

soudal-hr.jpg

768 ms

Pilecky_RGB.jpg

Pilecky_RGB.jpg

749 ms

gutta.png

gutta.png

763 ms

fakro.jpg

fakro.jpg

763 ms

recaptcha__en.js

recaptcha__en.js

131 ms

Styrotrade-logo-1.jpg

Styrotrade-logo-1.jpg

659 ms

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9gTuYzQ.ttf

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9gTuYzQ.ttf

79 ms

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r93zuYzQ.ttf

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r93zuYzQ.ttf

153 ms

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9XzyYzQ.ttf

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9XzyYzQ.ttf

156 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

729 ms

oman.jpg

oman.jpg

712 ms

terran.png

terran.png

725 ms

jap.jpg

jap.jpg

724 ms

anchor

anchor

41 ms

logo_refaglass.png

logo_refaglass.png

590 ms

betonpres.png

betonpres.png

604 ms

logo16102017oliyhk.png

logo16102017oliyhk.png

647 ms

logo-doornite.jpg

logo-doornite.jpg

659 ms

madalbal.jpg

madalbal.jpg

656 ms

styles__ltr.css

styles__ltr.css

3 ms

recaptcha__en.js

recaptcha__en.js

10 ms

ferobet.png

ferobet.png

658 ms

TPHoqtJ5orCJq8tG5HviyhIehjem7glZKueiD8pL8UM.js

TPHoqtJ5orCJq8tG5HviyhIehjem7glZKueiD8pL8UM.js

53 ms

webworker.js

webworker.js

94 ms

logo_48.png

logo_48.png

35 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

14 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

12 ms

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KFOlCnqEu92Fr1MmYUtfBBc9.ttf

57 ms

lanitplast.jpg

lanitplast.jpg

519 ms

baumit.jpg

baumit.jpg

518 ms

phone_v2.png

phone_v2.png

590 ms

email_v2.png

email_v2.png

602 ms

recaptcha__en.js

recaptcha__en.js

49 ms

sipka_nahoru.png

sipka_nahoru.png

556 ms

404.php

404.php

237 ms

Accessibility Review

nejstavebniny.cz accessibility score

94

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-hidden="true"] elements contain focusable descendents

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

Links do not have a discernible name

Best Practices

nejstavebniny.cz best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

nejstavebniny.cz SEO score

92

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

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 Nejstavebniny.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 Nejstavebniny.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

nejstavebniny.cz

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