Tools & Wizards About Us
postele.cz screenshot

Report Summary

  • 40

    Performance

    Renders faster than
    59% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

postele.cz

JMP Studio zdravého spaní loznice.cz - Matrace. Postele. Ložnice.

Page Load Speed

8 sec in total

First Response

2.8 sec

Resources Loaded

5.1 sec

Page Rendered

165 ms

postele.cz screenshot

About Website

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

Kvalitní matrace na míru, postele z masivu i lamina, ložnice, rozkládací postele. Vše česká výroba a vysoká kvalita. Přijďte si k nám vybrat lepší spaní!

Visit postele.cz

Key Findings

We analyzed Postele.cz page load time and found that the first response time was 2.8 sec and then it took 5.3 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

postele.cz performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

4/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value530 ms

55/100

30%

CLS (Cumulative Layout Shift)

Value0.154

74/100

15%

TTI (Time to Interactive)

Value9.3 s

31/100

10%

Network Requests Diagram

www.loznice.cz

2788 ms

site.min.css

219 ms

jquery-ui-1.8.21.custom.min.css

322 ms

site.min.js

1182 ms

index.min.css

318 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Postele.cz, 12% (6 requests) were made to Google.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.8 sec) relates to the external source Loznice.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 405.5 kB (51%)

Content Size

800.7 kB

After Optimization

395.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Postele.cz main page is 800.7 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. 40% of websites need less resources to load. Javascripts take 403.2 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 19.5 kB

  • Original 25.6 kB
  • After minification 23.5 kB
  • After compression 6.2 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 19.5 kB or 76% of the original size.

Image Optimization

-14%

Potential reduce by 41.7 kB

  • Original 289.6 kB
  • After minification 247.9 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. Obviously, Postele needs image optimization as it can save up to 41.7 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 277.3 kB

  • Original 403.2 kB
  • After minification 403.2 kB
  • After compression 125.9 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 277.3 kB or 69% of the original size.

CSS Optimization

-81%

Potential reduce by 66.9 kB

  • Original 82.2 kB
  • After minification 79.4 kB
  • After compression 15.3 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. Postele.cz needs all CSS files to be minified and compressed as it can save up to 66.9 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (51%)

Requests Now

47

After Optimization

23

  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Postele. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.loznice.cz

www.loznice.cz

2788 ms

site.min.css

site.min.css

219 ms

jquery-ui-1.8.21.custom.min.css

jquery-ui-1.8.21.custom.min.css

322 ms

site.min.js

site.min.js

1182 ms

index.min.css

index.min.css

318 ms

shp.min.js

shp.min.js

642 ms

ga.js

ga.js

323 ms

analytics.js

analytics.js

32 ms

bg_repeat.jpg

bg_repeat.jpg

460 ms

gtm.js

gtm.js

36 ms

header_logo.jpg

header_logo.jpg

321 ms

menu_li_delim.gif

menu_li_delim.gif

115 ms

menu_li_delim2.gif

menu_li_delim2.gif

115 ms

search.png

search.png

115 ms

cse.js

cse.js

30 ms

fb.png

fb.png

322 ms

smapSprite.png

smapSprite.png

129 ms

top10dot.png

top10dot.png

196 ms

category_loading.gif

category_loading.gif

299 ms

matrace160120.gif

matrace160120.gif

297 ms

rosty160120.gif

rosty160120.gif

235 ms

postele160120.gif

postele160120.gif

302 ms

polstare160120.gif

polstare160120.gif

572 ms

sofia_comfort160120.jpg

sofia_comfort160120.jpg

577 ms

akce.png

akce.png

574 ms

athena_LOZNICE_01160120.JPG

athena_LOZNICE_01160120.JPG

691 ms

Arianna3_loznice_01160120.JPG

Arianna3_loznice_01160120.JPG

580 ms

akce160120.png

akce160120.png

697 ms

titulka.png

titulka.png

784 ms

katalog_2016_uvod.jpg

katalog_2016_uvod.jpg

821 ms

titulka_ropo.png

titulka_ropo.png

789 ms

overlay.png

overlay.png

687 ms

yt.png

yt.png

303 ms

goo.png

goo.png

338 ms

pint.png

pint.png

573 ms

collect

collect

13 ms

collect

collect

110 ms

retargeting.js

retargeting.js

359 ms

conversion_async.js

conversion_async.js

49 ms

fbds.js

fbds.js

30 ms

jsapi

jsapi

46 ms

32 ms

default+cs.css

default+cs.css

11 ms

default.css

default.css

47 ms

default+cs.I.js

default+cs.I.js

21 ms

70 ms

default.css

default.css

33 ms

ga-audiences

ga-audiences

55 ms

30 ms

retargeting

retargeting

123 ms

4 ms

Accessibility Review

postele.cz accessibility score

88

Accessibility Issues

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

Buttons do not have an accessible name

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.

Best Practices

postele.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

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

postele.cz SEO score

97

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

    WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Postele.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 Postele.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

postele.cz

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