Tools & Wizards About Us
elbock.cz screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    56% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 80

    SEO

    Google-friendlier than
    42% of websites

elbock.cz

Systémy pro inteligentní dům - ELEKTROBOCK MTF s.r.o.

Page Load Speed

8.1 sec in total

First Response

524 ms

Resources Loaded

7 sec

Page Rendered

612 ms

elbock.cz screenshot

About Website

Welcome to elbock.cz homepage info - get ready to check Elbock best content right away, or after learning these important things about elbock.cz

Český výrobce spotřební elektroniky a chytré domácnosti.

Visit elbock.cz

Key Findings

We analyzed Elbock.cz page load time and found that the first response time was 524 ms and then it took 7.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

elbock.cz performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

9/100

10%

LCP (Largest Contentful Paint)

Value11.8 s

0/100

25%

SI (Speed Index)

Value9.1 s

14/100

10%

TBT (Total Blocking Time)

Value560 ms

53/100

30%

CLS (Cumulative Layout Shift)

Value0.106

88/100

15%

TTI (Time to Interactive)

Value7.9 s

43/100

10%

Network Requests Diagram

elbock.cz

524 ms

www.elektrobock.cz

1168 ms

1093 ms

basecss.v1448025270.css

621 ms

libsjs.v1433421131.js

1441 ms

Our browser made a total of 108 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Elbock.cz, 81% (88 requests) were made to Elektrobock.cz and 5% (5 requests) were made to Maps.googleapis.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Elektrobock.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (45%)

Content Size

2.4 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Elbock.cz main page is 2.4 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. 50% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 74.3 kB

  • Original 89.8 kB
  • After minification 84.2 kB
  • After compression 15.5 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 74.3 kB or 83% of the original size.

Image Optimization

-8%

Potential reduce by 80.4 kB

  • Original 1.0 MB
  • After minification 928.8 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. Elbock images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 688.6 kB

  • Original 997.0 kB
  • After minification 952.5 kB
  • After compression 308.4 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 688.6 kB or 69% of the original size.

CSS Optimization

-83%

Potential reduce by 221.9 kB

  • Original 267.1 kB
  • After minification 262.5 kB
  • After compression 45.2 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. Elbock.cz needs all CSS files to be minified and compressed as it can save up to 221.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (26%)

Requests Now

100

After Optimization

74

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 100 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Elbock. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

elbock.cz

elbock.cz

524 ms

www.elektrobock.cz

www.elektrobock.cz

1168 ms

1093 ms

basecss.v1448025270.css

basecss.v1448025270.css

621 ms

libsjs.v1433421131.js

libsjs.v1433421131.js

1441 ms

basejs.v1442997479.js

basejs.v1442997479.js

1741 ms

formcss.v1433421131.css

formcss.v1433421131.css

492 ms

formjs.v1433421131.js

formjs.v1433421131.js

1857 ms

lookup.js

lookup.js

381 ms

jquery.multiSelect.js

jquery.multiSelect.js

510 ms

calendar.js

calendar.js

750 ms

calendar-setup.js

calendar-setup.js

647 ms

calendar-en.js

calendar-en.js

737 ms

js

js

227 ms

markerwithlabel.v1440075695.js

markerwithlabel.v1440075695.js

769 ms

css

css

220 ms

retargeting.js

retargeting.js

395 ms

conversion.js

conversion.js

17 ms

logo.png

logo.png

367 ms

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838 ms

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841 ms

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842 ms

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864 ms

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846 ms

u-WUoqrET9fUeobQW7jkRaCWcynf_cDxXwCLxiixG1c.ttf

u-WUoqrET9fUeobQW7jkRaCWcynf_cDxXwCLxiixG1c.ttf

38 ms

DXI1ORHCpsQm3Vp6mXoaTdqQynqKV_9Plp7mupa0S4g.ttf

DXI1ORHCpsQm3Vp6mXoaTdqQynqKV_9Plp7mupa0S4g.ttf

83 ms

MTP_ySUJH_bn48VBG8sNStqQynqKV_9Plp7mupa0S4g.ttf

MTP_ySUJH_bn48VBG8sNStqQynqKV_9Plp7mupa0S4g.ttf

106 ms

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104 ms

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1256 ms

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795 ms

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797 ms

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824 ms

retargeting

retargeting

179 ms

analytics.js

analytics.js

140 ms

common.js

common.js

67 ms

util.js

util.js

130 ms

controls.js

controls.js

107 ms

places_impl.js

places_impl.js

100 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

865 ms

collect

collect

78 ms

slick.woff

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704 ms

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749 ms

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185 ms

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54 ms

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64 ms

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bulb.png

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1261 ms

bg_shadows_left.png

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1283 ms

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1317 ms

ajax-loader.gif

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1273 ms

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1297 ms

closebutton_13x13.png

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1303 ms

ajax-loader.gif

ajax-loader.gif

1344 ms

close.gif

close.gif

1368 ms

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131 ms

drop-shadow.png

drop-shadow.png

128 ms

zoomout.cur

zoomout.cur

126 ms

loader.white.gif

loader.white.gif

133 ms

Accessibility Review

elbock.cz accessibility score

89

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

elbock.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

elbock.cz SEO score

80

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Elbock.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it does not match the claimed English language. Our system also found out that Elbock.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

elbock.cz

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