Tools & Wizards About Us
dvojcatka.cz screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

dvojcatka.cz

Jediný obchod, kde myslíme na rodiny dvojčat - dvojčátka.cz

Page Load Speed

10.1 sec in total

First Response

443 ms

Resources Loaded

7.4 sec

Page Rendered

2.2 sec

dvojcatka.cz screenshot

About Website

Visit dvojcatka.cz now to see the best up-to-date Dvojcatka content and also check out these interesting facts you probably never knew about dvojcatka.cz

Jediný obchod, kde myslíme na rodiny dvojčat. Vítejte u Dvojčátek. Tento obchod je jediný svého druhu v ČR, zaměřen právě a výhradně na potřeby rodin s dvojčaty. U nás najdete produkty, které pro dvoj...

Visit dvojcatka.cz

Key Findings

We analyzed Dvojcatka.cz page load time and found that the first response time was 443 ms and then it took 9.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

dvojcatka.cz performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value25.8 s

0/100

25%

SI (Speed Index)

Value15.0 s

1/100

10%

TBT (Total Blocking Time)

Value6,030 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value26.5 s

0/100

10%

Network Requests Diagram

dvojcatka.cz

443 ms

www.dvojcatka.cz

1066 ms

webfont.js

43 ms

frontend_master_main_cs_af87f72d00467e323c43b03f520ff327.css

696 ms

notifikuj.min.js

453 ms

Our browser made a total of 114 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Dvojcatka.cz, 28% (32 requests) were made to Static.xx.fbcdn.net and 24% (27 requests) were made to Cdn.myshoptet.com. The less responsive or slowest element that took the longest time to load (2.2 sec) relates to the external source Cdn.myshoptet.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 670.4 kB (11%)

Content Size

5.9 MB

After Optimization

5.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dvojcatka.cz main page is 5.9 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 5.6 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 151.8 kB

  • Original 178.5 kB
  • After minification 128.7 kB
  • After compression 26.7 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 49.8 kB, which is 28% 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 151.8 kB or 85% of the original size.

Image Optimization

-9%

Potential reduce by 501.5 kB

  • Original 5.6 MB
  • After minification 5.1 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. Dvojcatka images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 692 B

  • Original 63.2 kB
  • After minification 63.2 kB
  • After compression 62.5 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

-26%

Potential reduce by 16.4 kB

  • Original 61.9 kB
  • After minification 61.9 kB
  • After compression 45.6 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. Dvojcatka.cz needs all CSS files to be minified and compressed as it can save up to 16.4 kB or 26% of the original size.

Requests Breakdown

Number of requests can be reduced by 57 (57%)

Requests Now

100

After Optimization

43

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 100 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dvojcatka. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dvojcatka.cz

dvojcatka.cz

443 ms

www.dvojcatka.cz

www.dvojcatka.cz

1066 ms

webfont.js

webfont.js

43 ms

frontend_master_main_cs_af87f72d00467e323c43b03f520ff327.css

frontend_master_main_cs_af87f72d00467e323c43b03f520ff327.css

696 ms

notifikuj.min.js

notifikuj.min.js

453 ms

js

js

168 ms

sdk.js

sdk.js

128 ms

jquery.min.js

jquery.min.js

99 ms

frontend_master_main_cs_b3739c4a984d87e7f788c951164ccf41.js

frontend_master_main_cs_b3739c4a984d87e7f788c951164ccf41.js

1056 ms

pixel.js

pixel.js

130 ms

css

css

109 ms

font-shoptet.css

font-shoptet.css

503 ms

analytics.js

analytics.js

286 ms

js

js

301 ms

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1903 ms

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1903 ms

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2248 ms

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2249 ms

sdk.js

sdk.js

171 ms

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733 ms

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1207 ms

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1214 ms

shoptet.ttf

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1876 ms

collect

collect

385 ms

668 ms

799 ms

tracker.js

tracker.js

1124 ms

shoptet.js

shoptet.js

1147 ms

ec.js

ec.js

354 ms

page.php

page.php

905 ms

203 ms

collect

collect

105 ms

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collect

74 ms

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collect

145 ms

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149 ms

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collect

154 ms

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collect

170 ms

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152 ms

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collect

152 ms

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Accessibility Review

dvojcatka.cz accessibility score

81

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 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.

High

[role]s are not contained by their required parent element

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

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

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

dvojcatka.cz best practices score

75

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

SEO Factors

dvojcatka.cz SEO score

100

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

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 Dvojcatka.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 Dvojcatka.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

dvojcatka.cz

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