Tools & Wizards About Us
jsautocentrum.cz screenshot

Report Summary

  • 60

    Performance

    Renders faster than
    76% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

jsautocentrum.cz

Prodej ojetých vozidel | Autobazar | JS Autocentrum s.r.o.

Page Load Speed

6.4 sec in total

First Response

317 ms

Resources Loaded

5.9 sec

Page Rendered

229 ms

jsautocentrum.cz screenshot

About Website

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

Autobazar Horka u Staré Paky - prodej ojetých aut s ověřenou historií. Všechna nabízená auta jsou námi důkladně vyzkoušena a otestována.

Visit jsautocentrum.cz

Key Findings

We analyzed Jsautocentrum.cz page load time and found that the first response time was 317 ms and then it took 6.1 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

jsautocentrum.cz performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value5.2 s

59/100

10%

TBT (Total Blocking Time)

Value340 ms

74/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.3 s

49/100

10%

Network Requests Diagram

jsautocentrum.cz

317 ms

www.jsautocentrum.cz

3479 ms

style_3.css

234 ms

style_imagehover.css

233 ms

stylesheet_8.css

230 ms

Our browser made a total of 88 requests to load all elements on the main page. We found that 63% of them (55 requests) were addressed to the original Jsautocentrum.cz, 17% (15 requests) were made to Scontent.xx.fbcdn.net and 11% (10 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (3.5 sec) belongs to the original domain Jsautocentrum.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 472.1 kB (56%)

Content Size

838.7 kB

After Optimization

366.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jsautocentrum.cz main page is 838.7 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. 55% of websites need less resources to load. Javascripts take 424.4 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 48.7 kB

  • Original 56.7 kB
  • After minification 47.6 kB
  • After compression 8.0 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. This page needs HTML code to be minified as it can gain 9.1 kB, which is 16% 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 48.7 kB or 86% of the original size.

Image Optimization

-15%

Potential reduce by 48.0 kB

  • Original 314.8 kB
  • After minification 266.9 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, JS Autocentrum needs image optimization as it can save up to 48.0 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

-80%

Potential reduce by 340.7 kB

  • Original 424.4 kB
  • After minification 247.2 kB
  • After compression 83.7 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 340.7 kB or 80% of the original size.

CSS Optimization

-81%

Potential reduce by 34.8 kB

  • Original 42.8 kB
  • After minification 27.8 kB
  • After compression 8.0 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. Jsautocentrum.cz needs all CSS files to be minified and compressed as it can save up to 34.8 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 35 (41%)

Requests Now

86

After Optimization

51

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 86 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JS Autocentrum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jsautocentrum.cz

jsautocentrum.cz

317 ms

www.jsautocentrum.cz

www.jsautocentrum.cz

3479 ms

style_3.css

style_3.css

234 ms

style_imagehover.css

style_imagehover.css

233 ms

stylesheet_8.css

stylesheet_8.css

230 ms

stylesheet_boxes1.css

stylesheet_boxes1.css

236 ms

stylesheet_highslide.css

stylesheet_highslide.css

235 ms

stylesheet_menu.css

stylesheet_menu.css

336 ms

stylesheet_popupMamZajem5.css

stylesheet_popupMamZajem5.css

335 ms

stylesheet_xx_bjqs3.css

stylesheet_xx_bjqs3.css

369 ms

stylesheet_xx_fancybox.css

stylesheet_xx_fancybox.css

371 ms

jscript_fadeimage.js

jscript_fadeimage.js

375 ms

jscript_highslide.js

jscript_highslide.js

562 ms

jscript_imagehover.js

jscript_imagehover.js

457 ms

jscript_jquery.js

jscript_jquery.js

1094 ms

jscript_mainbanner.js

jscript_mainbanner.js

574 ms

jscript_tooltips.js

jscript_tooltips.js

576 ms

jscript_xx_bjqs.js

jscript_xx_bjqs.js

673 ms

jscript_xx_fancybox.js

jscript_xx_fancybox.js

793 ms

logo.jpg

logo.jpg

383 ms

vozy-skladem.png

vozy-skladem.png

384 ms

header_bg.jpg

header_bg.jpg

204 ms

menu_bg.jpg

menu_bg.jpg

109 ms

ferove_financovani_800x150.jpg

ferove_financovani_800x150.jpg

180 ms

cebia_banner_800x150.jpg

cebia_banner_800x150.jpg

183 ms

defend_banner_800x150.jpg

defend_banner_800x150.jpg

409 ms

podklad-popis.jpg

podklad-popis.jpg

166 ms

nova_cena.gif

nova_cena.gif

120 ms

bae5ce50c8d538a5f1d0b7ca5066600b.image.100x75.jpg

bae5ce50c8d538a5f1d0b7ca5066600b.image.100x75.jpg

228 ms

9ca3f91806c4c9d3860b9ec9dd0575de.image.100x75.jpg

9ca3f91806c4c9d3860b9ec9dd0575de.image.100x75.jpg

272 ms

blank.gif

blank.gif

328 ms

17d9defd7a8a8e3b541c20278c0a2063.image.100x75.jpg

17d9defd7a8a8e3b541c20278c0a2063.image.100x75.jpg

310 ms

3fdb68ff8563371a4cf9531772a3f4a3.image.100x75.jpg

3fdb68ff8563371a4cf9531772a3f4a3.image.100x75.jpg

121 ms

5a82302540135b9c086ea290217e7e14.image.100x75.jpg

5a82302540135b9c086ea290217e7e14.image.100x75.jpg

132 ms

novinka.gif

novinka.gif

132 ms

625e6673709d4b27d7b44c88c482b4c5.image.100x75.jpg

625e6673709d4b27d7b44c88c482b4c5.image.100x75.jpg

122 ms

21fcc2ff3bccafc3728ad16ddcc1b8fe.image.100x75.jpg

21fcc2ff3bccafc3728ad16ddcc1b8fe.image.100x75.jpg

121 ms

2e6dee28044cf5f5bfabeaf24a9e422a.image.100x75.jpg

2e6dee28044cf5f5bfabeaf24a9e422a.image.100x75.jpg

234 ms

47bb24413b14063acb27583939e7bfd4.image.100x75.jpg

47bb24413b14063acb27583939e7bfd4.image.100x75.jpg

111 ms

06d9789fb49d36f03c7103a8e8a99599.image.100x75.jpg

06d9789fb49d36f03c7103a8e8a99599.image.100x75.jpg

112 ms

41b9a1811c78610d46cb97b020cd2d3b.image.100x75.jpg

41b9a1811c78610d46cb97b020cd2d3b.image.100x75.jpg

112 ms

2b631dc7d453f255dd70276f0a21059e.image.100x75.jpg

2b631dc7d453f255dd70276f0a21059e.image.100x75.jpg

116 ms

ba7967a7dda3ac843afb077b820a78be.image.100x75.jpg

ba7967a7dda3ac843afb077b820a78be.image.100x75.jpg

112 ms

5bbd4c11b9720972ae1e7674c914dca0.image.100x75.jpg

5bbd4c11b9720972ae1e7674c914dca0.image.100x75.jpg

126 ms

ceb82b16063b8c97522918b82846073e.image.100x75.jpg

ceb82b16063b8c97522918b82846073e.image.100x75.jpg

126 ms

categories_heading.jpg

categories_heading.jpg

128 ms

bg_cat.gif

bg_cat.gif

134 ms

category-top.gif

category-top.gif

127 ms

categories_heading2.jpg

categories_heading2.jpg

126 ms

34476530376955b7f6e41e65e9f70328.image.164x123.jpg

34476530376955b7f6e41e65e9f70328.image.164x123.jpg

207 ms

all.js

all.js

10 ms

footer_bg.jpg

footer_bg.jpg

222 ms

dot.asp

dot.asp

241 ms

ga.js

ga.js

37 ms

__utm.gif

__utm.gif

45 ms

169 ms

xd_arbiter.php

xd_arbiter.php

45 ms

xd_arbiter.php

xd_arbiter.php

61 ms

like_box.php

like_box.php

234 ms

print_stylesheet.css

print_stylesheet.css

131 ms

drop-shadow.png

drop-shadow.png

174 ms

zoomout.cur

zoomout.cur

172 ms

loader.white.gif

loader.white.gif

172 ms

McLpmVM3wCm.css

McLpmVM3wCm.css

38 ms

VH4VPudaxfN.css

VH4VPudaxfN.css

41 ms

q68gy-v_YMF.js

q68gy-v_YMF.js

48 ms

hHAUS9q05ns.js

hHAUS9q05ns.js

62 ms

0wM5s1Khldu.js

0wM5s1Khldu.js

61 ms

1bNoFZUdlYZ.js

1bNoFZUdlYZ.js

61 ms

1655981_703663923017628_454265924_n.jpg

1655981_703663923017628_454265924_n.jpg

248 ms

72671_511257222258300_1695070578_n.png

72671_511257222258300_1695070578_n.png

306 ms

10366068_1282931621720491_8959264668761208351_n.jpg

10366068_1282931621720491_8959264668761208351_n.jpg

338 ms

1653699_1397615770503753_1552387143_n.jpg

1653699_1397615770503753_1552387143_n.jpg

339 ms

1170952_587832147942146_207929154_n.jpg

1170952_587832147942146_207929154_n.jpg

388 ms

11059239_886791328076521_4670591793684050478_n.jpg

11059239_886791328076521_4670591793684050478_n.jpg

339 ms

10274042_1277502342263159_4782950429577857978_n.jpg

10274042_1277502342263159_4782950429577857978_n.jpg

340 ms

1506490_567940619994309_2867627955154784822_n.jpg

1506490_567940619994309_2867627955154784822_n.jpg

345 ms

12717543_989005964522501_5623251880274687749_n.jpg

12717543_989005964522501_5623251880274687749_n.jpg

378 ms

536825_722732837756384_1046528573_n.jpg

536825_722732837756384_1046528573_n.jpg

379 ms

1146538_1240277345985722_3793630385581203037_n.jpg

1146538_1240277345985722_3793630385581203037_n.jpg

430 ms

1379841_10150004552801901_469209496895221757_n.jpg

1379841_10150004552801901_469209496895221757_n.jpg

380 ms

12507656_824311121013604_5196699774558643612_n.jpg

12507656_824311121013604_5196699774558643612_n.jpg

465 ms

10622837_524196581059084_4645173608287887890_n.jpg

10622837_524196581059084_4645173608287887890_n.jpg

471 ms

11217166_1290903437604960_9052580353595773195_n.jpg

11217166_1290903437604960_9052580353595773195_n.jpg

458 ms

wL6VQj7Ab77.png

wL6VQj7Ab77.png

4 ms

s7jcwEQH7Sx.png

s7jcwEQH7Sx.png

4 ms

I6-MnjEovm5.js

I6-MnjEovm5.js

4 ms

pQrUxxo5oQp.js

pQrUxxo5oQp.js

7 ms

Accessibility Review

jsautocentrum.cz accessibility score

85

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

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

jsautocentrum.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

jsautocentrum.cz SEO score

90

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

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    CS

  • Encoding

    WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jsautocentrum.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 Jsautocentrum.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

jsautocentrum.cz

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