Tools & Wizards About Us
postovnezdarma.cz screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

postovnezdarma.cz

Nákupní galerie, kde neplatíte za poštovné | PoštovnéZDARMA.cz

Page Load Speed

6.3 sec in total

First Response

385 ms

Resources Loaded

5.7 sec

Page Rendered

268 ms

postovnezdarma.cz screenshot

About Website

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

Tisíce zajímavých produktů - mezi nimi i móda, hodinky a spousta dalších. Nezapomeňte, že poštovné nehradíte, je skutečně ZDARMA! Podívejte se na naše produkty se slevami až 70%.

Visit postovnezdarma.cz

Key Findings

We analyzed Postovnezdarma.cz page load time and found that the first response time was 385 ms and then it took 5.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

postovnezdarma.cz performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

19/100

25%

SI (Speed Index)

Value6.6 s

38/100

10%

TBT (Total Blocking Time)

Value1,150 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value0.063

97/100

15%

TTI (Time to Interactive)

Value11.7 s

17/100

10%

Network Requests Diagram

postovnezdarma.cz

385 ms

postovnezdarma.cz

678 ms

gtm.js

101 ms

default.--4130faffd52f.min.css

593 ms

page.--fac2f9580afa.min.css

1238 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Postovnezdarma.cz, 79% (52 requests) were made to Static.shipgratis.eu and 5% (3 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source Static.shipgratis.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 332.7 kB (22%)

Content Size

1.5 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Postovnezdarma.cz main page is 1.5 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 738.3 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 209.3 kB

  • Original 236.8 kB
  • After minification 159.5 kB
  • After compression 27.5 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 77.2 kB, which is 33% 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 209.3 kB or 88% of the original size.

Image Optimization

-15%

Potential reduce by 114.0 kB

  • Original 738.3 kB
  • After minification 624.3 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. Obviously, Postovnezdarma needs image optimization as it can save up to 114.0 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 9.2 kB

  • Original 465.1 kB
  • After minification 465.1 kB
  • After compression 455.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 230 B

  • Original 76.6 kB
  • After minification 76.6 kB
  • After compression 76.4 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. Postovnezdarma.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 22 (35%)

Requests Now

63

After Optimization

41

  • Images
  • JavaScript
  • CSS

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Postovnezdarma. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

postovnezdarma.cz

postovnezdarma.cz

385 ms

postovnezdarma.cz

postovnezdarma.cz

678 ms

gtm.js

gtm.js

101 ms

default.--4130faffd52f.min.css

default.--4130faffd52f.min.css

593 ms

page.--fac2f9580afa.min.css

page.--fac2f9580afa.min.css

1238 ms

page.--ccef66559402.min.css

page.--ccef66559402.min.css

1028 ms

jquery.min.js

jquery.min.js

63 ms

prototype.js

prototype.js

67 ms

react.production.min.js

react.production.min.js

72 ms

react-dom.production.min.js

react-dom.production.min.js

83 ms

locale.--72b2cb615d28.min.js

locale.--72b2cb615d28.min.js

1029 ms

core.--9cb3185c7671.min.js

core.--9cb3185c7671.min.js

1193 ms

core.--c87258cf760d.min.js

core.--c87258cf760d.min.js

1055 ms

default.--0866642fc6be.min.js

default.--0866642fc6be.min.js

1058 ms

default.--1d2258aad8a7.min.js

default.--1d2258aad8a7.min.js

1453 ms

default.--1d2258aad8a7.min.js.css

default.--1d2258aad8a7.min.js.css

1457 ms

page.--28bb240c0c94.min.js

page.--28bb240c0c94.min.js

1599 ms

all.min.css

all.min.css

122 ms

api.js

api.js

72 ms

sdk.js

sdk.js

52 ms

api:client.js

api:client.js

64 ms

logo-cz.svg

logo-cz.svg

419 ms

logo-small-transparent.svg

logo-small-transparent.svg

425 ms

cs.svg

cs.svg

468 ms

sk.svg

sk.svg

421 ms

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1721 ms

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1752 ms

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1635 ms

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1642 ms

visa-logo-3.svg

visa-logo-3.svg

2059 ms

recaptcha__en.js

recaptcha__en.js

55 ms

mastercard-logo-2.svg

mastercard-logo-2.svg

2038 ms

sdk.js

sdk.js

9 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

30 ms

newpostovnezdarma.ttf

newpostovnezdarma.ttf

1855 ms

jquery-ias.min.js

jquery-ias.min.js

1727 ms

maestro-logo-2.svg

maestro-logo-2.svg

1754 ms

payu-logo-3.svg

payu-logo-3.svg

2024 ms

1.png

1.png

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page.--9c8a62e19bef.min.css

page.--9c8a62e19bef.min.css

505 ms

Accessibility Review

postovnezdarma.cz accessibility score

65

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.

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

postovnezdarma.cz best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

postovnezdarma.cz SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

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 Postovnezdarma.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 Postovnezdarma.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

postovnezdarma.cz

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