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kolonial.cz screenshot

Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

kolonial.cz

Košík.cz - Online supermarket, který drží ceny nízko | Košík.cz

Page Load Speed

7 sec in total

First Response

1.4 sec

Resources Loaded

5.3 sec

Page Rendered

280 ms

kolonial.cz screenshot

About Website

Click here to check amazing Kolonial content for Czech Republic. Otherwise, check out these important facts you probably never knew about kolonial.cz

Netahejte se s nákupy. Kvalitní a čerstvé potraviny vám do druhého dne doručí ochotný příručí třeba až do ledničky.

Visit kolonial.cz

Key Findings

We analyzed Kolonial.cz page load time and found that the first response time was 1.4 sec and then it took 5.6 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

kolonial.cz performance score

0

Network Requests Diagram

www.kolonial.cz

1372 ms

css

61 ms

cssloader-b327cc957cd8.css

756 ms

jsloader-61724e30d76d.js

1518 ms

js

81 ms

Our browser made a total of 123 requests to load all elements on the main page. We found that 19% of them (23 requests) were addressed to the original Kolonial.cz, 20% (25 requests) were made to Cdn.3mw.cz and 16% (20 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (2.6 sec) relates to the external source Cdn.3mw.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 600.7 kB (27%)

Content Size

2.2 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kolonial.cz main page is 2.2 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. 65% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 107.5 kB

  • Original 133.1 kB
  • After minification 124.6 kB
  • After compression 25.5 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. 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 107.5 kB or 81% of the original size.

Image Optimization

-3%

Potential reduce by 42.5 kB

  • Original 1.4 MB
  • After minification 1.4 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. Kolonial images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 320.6 kB

  • Original 493.4 kB
  • After minification 493.3 kB
  • After compression 172.8 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 320.6 kB or 65% of the original size.

CSS Optimization

-83%

Potential reduce by 130.0 kB

  • Original 156.7 kB
  • After minification 155.8 kB
  • After compression 26.7 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. Kolonial.cz needs all CSS files to be minified and compressed as it can save up to 130.0 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 56 (50%)

Requests Now

112

After Optimization

56

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 112 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kolonial. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 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.kolonial.cz

www.kolonial.cz

1372 ms

css

css

61 ms

cssloader-b327cc957cd8.css

cssloader-b327cc957cd8.css

756 ms

jsloader-61724e30d76d.js

jsloader-61724e30d76d.js

1518 ms

js

js

81 ms

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1032 ms

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916 ms

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739 ms

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904 ms

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911 ms

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913 ms

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1173 ms

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1550 ms

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1549 ms

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1565 ms

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1782 ms

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2100 ms

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2019 ms

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2137 ms

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2139 ms

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2172 ms

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2368 ms

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2477 ms

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2478 ms

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2557 ms

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2628 ms

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486 ms

priruci.png

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716 ms

layer-fresh.png

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907 ms

layer-cooled.png

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898 ms

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1053 ms

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1086 ms

layer-drinks.png

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1543 ms

layer-drugs.png

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1393 ms

layer-kids.png

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1532 ms

layer-pets.png

layer-pets.png

1949 ms

footer_phone.png

footer_phone.png

1399 ms

footer_mail.png

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1483 ms

gtm.js

gtm.js

221 ms

logo_head.svg

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1820 ms

spin.gif

spin.gif

1863 ms

stars.png

stars.png

1816 ms

ftr-pattern.png

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1933 ms

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62 ms

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156 ms

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178 ms

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176 ms

kolonial.woff

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1921 ms

Rooney-BoldItalic.woff

Rooney-BoldItalic.woff

2222 ms

Rooney-HeavyItalic.woff

Rooney-HeavyItalic.woff

2247 ms

Rooney-RegularItalic.woff

Rooney-RegularItalic.woff

2329 ms

5644664fa455a89198000080.js

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284 ms

kolonial.js

kolonial.js

652 ms

tagjs

tagjs

2 ms

78 ms

adsct

adsct

322 ms

Pug

Pug

127 ms

pixel

pixel

100 ms

cb

cb

72 ms

sd

sd

8 ms

cb

cb

168 ms

like_box.php

like_box.php

339 ms

sdk.js

sdk.js

592 ms

analytics.js

analytics.js

177 ms

conversion_async.js

conversion_async.js

137 ms

526 ms

ld.js

ld.js

194 ms

fbevents.js

fbevents.js

658 ms

retargeting.js

retargeting.js

654 ms

ncm

ncm

31 ms

cb

cb

9 ms

collect

collect

43 ms

collect

collect

86 ms

tap.php

tap.php

157 ms

event

event

106 ms

79 ms

BdmCbeqDF1M.css

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178 ms

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220 ms

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263 ms

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404 ms

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428 ms

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308 ms

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445 ms

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474 ms

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474 ms

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475 ms

ga-audiences

ga-audiences

30 ms

177 ms

89 ms

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api-staging.luigisbox.com

296 ms

xd_arbiter.php

xd_arbiter.php

460 ms

retargeting

retargeting

235 ms

235 ms

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449 ms

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490 ms

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614 ms

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456 ms

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50 ms

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90 ms

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nr-885.min.js

96 ms

dis.aspx

dis.aspx

78 ms

crossd_iframe.html

crossd_iframe.html

93 ms

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109 ms

SEO Factors

kolonial.cz SEO score

0

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 Kolonial.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 Kolonial.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

kolonial.cz

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