Tools & Wizards About Us
vkservis.cz screenshot

Report Summary

  • 88

    Performance

    Renders faster than
    90% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

vkservis.cz

VK Servis - prodejna s hudebninami, mobiln?mi telefony a fototechnikou

Page Load Speed

4.7 sec in total

First Response

403 ms

Resources Loaded

4 sec

Page Rendered

254 ms

vkservis.cz screenshot

About Website

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

Velk? v?b?r fotoapar?tu, objektivu a filtru. Skv?l? ceny a vet?ina zbo?? skladem. Odes?l?me druh? den po objedn?n?.

Visit vkservis.cz

Key Findings

We analyzed Vkservis.cz page load time and found that the first response time was 403 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

vkservis.cz performance score

88

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

76/100

25%

SI (Speed Index)

Value3.9 s

82/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value2.7 s

97/100

10%

Network Requests Diagram

vkservis.cz

403 ms

www.vkservis.cz

1333 ms

all.css

592 ms

colorbox.css

239 ms

search.css

240 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 92% of them (56 requests) were addressed to the original Vkservis.cz, 3% (2 requests) were made to Heureka.cz and 3% (2 requests) were made to Im9.cz. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Vkservis.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 295.8 kB (56%)

Content Size

532.0 kB

After Optimization

236.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vkservis.cz main page is 532.0 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. 25% of websites need less resources to load. Javascripts take 264.7 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 29.2 kB

  • Original 34.6 kB
  • After minification 28.7 kB
  • After compression 5.4 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 5.9 kB, which is 17% 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 29.2 kB or 84% of the original size.

Image Optimization

-10%

Potential reduce by 17.9 kB

  • Original 185.3 kB
  • After minification 167.4 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. VK Servis images are well optimized though.

JavaScript Optimization

-79%

Potential reduce by 208.0 kB

  • Original 264.7 kB
  • After minification 187.3 kB
  • After compression 56.7 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 208.0 kB or 79% of the original size.

CSS Optimization

-86%

Potential reduce by 40.7 kB

  • Original 47.5 kB
  • After minification 34.3 kB
  • After compression 6.7 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. Vkservis.cz needs all CSS files to be minified and compressed as it can save up to 40.7 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (36%)

Requests Now

59

After Optimization

38

  • Images
  • JavaScript
  • CSS

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of VK Servis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vkservis.cz

vkservis.cz

403 ms

www.vkservis.cz

www.vkservis.cz

1333 ms

all.css

all.css

592 ms

colorbox.css

colorbox.css

239 ms

search.css

search.css

240 ms

ui.all.css

ui.all.css

291 ms

jquery-1.4.2.js

jquery-1.4.2.js

1282 ms

jquery.tools.min.2.6.js

jquery.tools.min.2.6.js

705 ms

jquery-ui-personalized-1.6rc5.min.js

jquery-ui-personalized-1.6rc5.min.js

597 ms

jquery.colorbox.js

jquery.colorbox.js

741 ms

jquery.treeTable.js

jquery.treeTable.js

469 ms

search.js

search.js

588 ms

vkservis.js

vkservis.js

708 ms

ui.core.css

ui.core.css

420 ms

ui.theme.css

ui.theme.css

427 ms

ui.allplugins.css

ui.allplugins.css

533 ms

ui.tabs.css

ui.tabs.css

120 ms

back.gif

back.gif

121 ms

3kt-logo_small.png

3kt-logo_small.png

442 ms

20130426_-_new_horni_obr.gif

20130426_-_new_horni_obr.gif

360 ms

vlajka_cz.gif

vlajka_cz.gif

145 ms

vlajka_sk.gif

vlajka_sk.gif

160 ms

telefon.png

telefon.png

121 ms

zbozi_110.gif

zbozi_110.gif

120 ms

5949-huawei-g8-01.jpg

5949-huawei-g8-01.jpg

122 ms

do_kosiku_cz.gif

do_kosiku_cz.gif

240 ms

lupa3.gif

lupa3.gif

238 ms

1880-Nokia_N9-00_magenta_Front_400x400.png

1880-Nokia_N9-00_magenta_Front_400x400.png

246 ms

zbozi_v_akci.gif

zbozi_v_akci.gif

289 ms

3713-640_dual_white.jpg

3713-640_dual_white.jpg

315 ms

2490-Canon_6D_vs_7D_Canon_EOS_6D_price_specs_release_date.jpg

2490-Canon_6D_vs_7D_Canon_EOS_6D_price_specs_release_date.jpg

355 ms

3785-1505-1.jpg

3785-1505-1.jpg

357 ms

3706-4x_white.jpg

3706-4x_white.jpg

366 ms

3773-lumia550-black%20(1).jpg

3773-lumia550-black%20(1).jpg

446 ms

6000-Huawei%20P8%20Lite%20Dual%20SIM%20White.jpg

6000-Huawei%20P8%20Lite%20Dual%20SIM%20White.jpg

473 ms

3687-zf6_white.jpg

3687-zf6_white.jpg

471 ms

5959-ImgW.ashx.jpg

5959-ImgW.ashx.jpg

475 ms

3783-ifa-2015-huawei-mate-s-1000x800.jpg

3783-ifa-2015-huawei-mate-s-1000x800.jpg

474 ms

2126-nokia-asha-300-picture.jpg

2126-nokia-asha-300-picture.jpg

484 ms

3778-kv-product.png

3778-kv-product.png

594 ms

3412-dg900-gold.jpg

3412-dg900-gold.jpg

586 ms

button.gif

button.gif

630 ms

bily_bod.gif

bily_bod.gif

589 ms

tt_logo.gif

tt_logo.gif

592 ms

heureka_overeno.gif

heureka_overeno.gif

603 ms

yamaha_autorizovany_prodejce.gif

yamaha_autorizovany_prodejce.gif

702 ms

ecotoner_autorizovany_prodejce.png

ecotoner_autorizovany_prodejce.png

706 ms

hledej_cz.gif

hledej_cz.gif

710 ms

2673-NOKIA-C2-01-BLACK.jpg

2673-NOKIA-C2-01-BLACK.jpg

743 ms

svobodova_small.jpg

svobodova_small.jpg

721 ms

bouda_small.jpg

bouda_small.jpg

790 ms

kheil_small.jpg

kheil_small.jpg

818 ms

black_arrow_big.png

black_arrow_big.png

822 ms

prodavac_petr_kusy.jpg

prodavac_petr_kusy.jpg

829 ms

gjs.php

gjs.php

218 ms

black_arrow.png

black_arrow.png

797 ms

loading.gif

loading.gif

785 ms

controls.png

controls.png

838 ms

widget.php

widget.php

137 ms

left-zalozka-only.png

left-zalozka-only.png

312 ms

right-zalozka-only.png

right-zalozka-only.png

334 ms

Accessibility Review

vkservis.cz accessibility score

59

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

Best Practices

vkservis.cz best practices score

58

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

vkservis.cz SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vkservis.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Vkservis.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

vkservis.cz

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