Tools & Wizards About Us
comfor.cz screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

comfor.cz

COMFOR - Poskládáme vaši IT domácnost

Page Load Speed

14.8 sec in total

First Response

413 ms

Resources Loaded

13.3 sec

Page Rendered

1.1 sec

comfor.cz screenshot

About Website

Visit comfor.cz now to see the best up-to-date COMFOR content for Czech Republic and also check out these interesting facts you probably never knew about comfor.cz

Poskládáme vaši IT domácnost. U nás nakoupíte vše od micro SD karet až po stolní počítače. | 180 výdejních míst po celé ČR | Časté akce a slevy.

Visit comfor.cz

Key Findings

We analyzed Comfor.cz page load time and found that the first response time was 413 ms and then it took 14.4 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

comfor.cz performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

37/100

10%

LCP (Largest Contentful Paint)

Value8.3 s

2/100

25%

SI (Speed Index)

Value5.7 s

51/100

10%

TBT (Total Blocking Time)

Value460 ms

62/100

30%

CLS (Cumulative Layout Shift)

Value0.396

25/100

15%

TTI (Time to Interactive)

Value10.6 s

23/100

10%

Network Requests Diagram

comfor.cz

413 ms

www.comfor.cz

792 ms

main.bundle-5022078a.css

68 ms

banner.bundle-38364189.css

446 ms

card.bundle-4b91f4c9.css

214 ms

Our browser made a total of 157 requests to load all elements on the main page. We found that 3% of them (5 requests) were addressed to the original Comfor.cz, 92% (144 requests) were made to Comfor-cdn.azureedge.net and 2% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (4 sec) relates to the external source Comfor-cdn.azureedge.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 499.7 kB (8%)

Content Size

6.4 MB

After Optimization

5.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Comfor.cz main page is 6.4 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 6.2 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 113.8 kB

  • Original 134.8 kB
  • After minification 134.7 kB
  • After compression 21.0 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 113.8 kB or 84% of the original size.

Image Optimization

-6%

Potential reduce by 370.9 kB

  • Original 6.2 MB
  • After minification 5.8 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. COMFOR images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 6.2 kB

  • Original 58.9 kB
  • After minification 58.9 kB
  • After compression 52.7 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 6.2 kB or 11% of the original size.

CSS Optimization

-20%

Potential reduce by 8.8 kB

  • Original 43.8 kB
  • After minification 43.8 kB
  • After compression 35.0 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. Comfor.cz needs all CSS files to be minified and compressed as it can save up to 8.8 kB or 20% of the original size.

Requests Breakdown

Number of requests can be reduced by 36 (24%)

Requests Now

151

After Optimization

115

  • Images
  • JavaScript
  • CSS

The browser has sent 151 CSS, Javascripts, AJAX and image requests in order to completely render the main page of COMFOR. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

comfor.cz

comfor.cz

413 ms

www.comfor.cz

www.comfor.cz

792 ms

main.bundle-5022078a.css

main.bundle-5022078a.css

68 ms

banner.bundle-38364189.css

banner.bundle-38364189.css

446 ms

card.bundle-4b91f4c9.css

card.bundle-4b91f4c9.css

214 ms

product-tile.bundle-10c56b55.css

product-tile.bundle-10c56b55.css

545 ms

category.bundle-00755da6.css

category.bundle-00755da6.css

643 ms

wysiwyg.bundle-9590451a.css

wysiwyg.bundle-9590451a.css

463 ms

LBX-352950.js

LBX-352950.js

33 ms

css2

css2

44 ms

index-9545439f.js

index-9545439f.js

151 ms

gtm.js

gtm.js

77 ms

logo.svg

logo.svg

178 ms

trh%C3%A1k.svg

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409 ms

techsavers.svg

techsavers.svg

370 ms

Mac-1.webp

Mac-1.webp

338 ms

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ipad-1.webp

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Watch-1.webp

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855 ms

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717 ms

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852 ms

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1081 ms

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product-no-image.svg

290 ms

heureka.png

heureka.png

349 ms

pro+NTB.webp

pro+NTB.webp

2595 ms

UcCO3FwrK3iLTeHuS_fvQtMwCp50KnMw2boKoduKmMEVuFuYMZs.woff

UcCO3FwrK3iLTeHuS_fvQtMwCp50KnMw2boKoduKmMEVuFuYMZs.woff

105 ms

UcCO3FwrK3iLTeHuS_fvQtMwCp50KnMw2boKoduKmMEVuGKYMZs.woff

UcCO3FwrK3iLTeHuS_fvQtMwCp50KnMw2boKoduKmMEVuGKYMZs.woff

136 ms

UcCO3FwrK3iLTeHuS_fvQtMwCp50KnMw2boKoduKmMEVuLyfMZs.woff

UcCO3FwrK3iLTeHuS_fvQtMwCp50KnMw2boKoduKmMEVuLyfMZs.woff

136 ms

cookie-law-v3.js

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694 ms

destination

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80 ms

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2458 ms

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2396 ms

pro-foto-150.webp

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3435 ms

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2600 ms

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2549 ms

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2329 ms

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2372 ms

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2230 ms

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2387 ms

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herni.webp

2429 ms

pc-hry-150.webp

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2253 ms

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2188 ms

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2391 ms

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2496 ms

fotoaparaty-150.webp

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2305 ms

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2279 ms

hifi-150.webp

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2231 ms

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2208 ms

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2436 ms

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2303 ms

laminovacky-150.webp

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2253 ms

diktafon-150.webp

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1971 ms

satelit-150.webp

satelit-150.webp

2315 ms

baterie.webp

baterie.webp

2356 ms

m%C4%9Bni%C4%8Dnap%C4%9Bt%C3%AD.webp

m%C4%9Bni%C4%8Dnap%C4%9Bt%C3%AD.webp

2290 ms

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2373 ms

detektor-1.webp

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2252 ms

outdoor.webp

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2288 ms

elektrovoz%C3%ADtka.webp

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2284 ms

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2303 ms

dom%C3%A1c%C3%ADspot%C5%99ebi%C4%8De.webp

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2202 ms

digitdom%C3%A1cnost.webp

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2243 ms

medi%C3%A1ln%C3%AD+p%C5%99ehr%C3%A1va%C4%8De.webp

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2542 ms

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2254 ms

chytr%C3%A1dom%C3%A1cnost.webp

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2295 ms

on-line+podpora.webp

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2171 ms

noitebook.webp

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2121 ms

tablet.webp

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2210 ms

telefon.webp

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2236 ms

dal%C5%A1%C3%AD.webp

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2286 ms

HP_main_geek.jpg

HP_main_geek.jpg

2508 ms

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Asus-Logo.png

Asus-Logo.png

3247 ms

Dell_Logo.svg

Dell_Logo.svg

2946 ms

HP-Logo.png

HP-Logo.png

3201 ms

intel-logo-00-1536x864.jpg

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Lenovo-Logo-700x394.png

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MSI-Logo-700x394.png

MSI-Logo-700x394.png

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3450 ms

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382 ms

article.bundle-8177cbad.css

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370 ms

manufacturer.bundle-41418f28.css

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20 ms

Accessibility Review

comfor.cz accessibility score

90

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.

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 IDs are not unique

Best Practices

comfor.cz best practices score

75

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

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

comfor.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

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 Comfor.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 Comfor.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

comfor.cz

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