Tools & Wizards About Us
expertelektro.cz screenshot

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

expertelektro.cz

Expert Elektro - TV, audio, bílé zboží, foto, GPS, telefony

Page Load Speed

3 sec in total

First Response

551 ms

Resources Loaded

2.3 sec

Page Rendered

166 ms

expertelektro.cz screenshot

About Website

Click here to check amazing Expert Elektro content. Otherwise, check out these important facts you probably never knew about expertelektro.cz

expert Elektro je maloobchodní prodejce elektra, domácích spotřebičů, černé techniky, mobilů a IT. Nově můžete objednávat i online na www.expert.cz.

Visit expertelektro.cz

Key Findings

We analyzed Expertelektro.cz page load time and found that the first response time was 551 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

expertelektro.cz performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value16.5 s

0/100

25%

SI (Speed Index)

Value14.2 s

1/100

10%

TBT (Total Blocking Time)

Value12,410 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.248

50/100

15%

TTI (Time to Interactive)

Value24.0 s

1/100

10%

Network Requests Diagram

www.expertcr.cz

551 ms

compress.ashx

323 ms

jsapi

27 ms

jquery.validate.min.js

55 ms

js

48 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Expertelektro.cz, 5% (2 requests) were made to Ajax.googleapis.com and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Expertcr.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 125.9 kB (16%)

Content Size

772.7 kB

After Optimization

646.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Expertelektro.cz main page is 772.7 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. 40% of websites need less resources to load. Images take 620.4 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 9.3 kB

  • Original 13.6 kB
  • After minification 12.6 kB
  • After compression 4.3 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 9.3 kB or 68% of the original size.

Image Optimization

-5%

Potential reduce by 28.0 kB

  • Original 620.4 kB
  • After minification 592.3 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. Expert Elektro images are well optimized though.

JavaScript Optimization

-43%

Potential reduce by 26.9 kB

  • Original 62.2 kB
  • After minification 62.2 kB
  • After compression 35.4 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 26.9 kB or 43% of the original size.

CSS Optimization

-81%

Potential reduce by 61.7 kB

  • Original 76.5 kB
  • After minification 75.5 kB
  • After compression 14.8 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. Expertelektro.cz needs all CSS files to be minified and compressed as it can save up to 61.7 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (17%)

Requests Now

36

After Optimization

30

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Expert Elektro. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.expertcr.cz

www.expertcr.cz

551 ms

compress.ashx

compress.ashx

323 ms

jsapi

jsapi

27 ms

jquery.validate.min.js

jquery.validate.min.js

55 ms

js

js

48 ms

jquery.min.js

jquery.min.js

5 ms

jquery-ui.min.js

jquery-ui.min.js

22 ms

body.jpg

body.jpg

117 ms

compress.ashx

compress.ashx

190 ms

ga.js

ga.js

23 ms

header-light.jpg

header-light.jpg

191 ms

logo.png

logo.png

410 ms

btn-search.png

btn-search.png

222 ms

promo-full.jpg

promo-full.jpg

667 ms

Z150807_EXP_Darkove_karty_banner960x275_OK.jpg

Z150807_EXP_Darkove_karty_banner960x275_OK.jpg

1034 ms

Z153338_EXP_Banner_960x275_KB_Expert_klub_PRESS.jpg

Z153338_EXP_Banner_960x275_KB_Expert_klub_PRESS.jpg

646 ms

Z160448_EXP_banner_960x275_Elektrowin.jpg

Z160448_EXP_banner_960x275_Elektrowin.jpg

657 ms

menu-line.jpg

menu-line.jpg

339 ms

menu-dark.jpg

menu-dark.jpg

465 ms

btn-search-quick.png

btn-search-quick.png

527 ms

flag-cz.png

flag-cz.png

580 ms

flag-sk.png

flag-sk.png

639 ms

company-footer.png

company-footer.png

693 ms

footer-col-d.png

footer-col-d.png

749 ms

letak.png

letak.png

763 ms

btn-blue-l.png

btn-blue-l.png

771 ms

btn-blue-r.png

btn-blue-r.png

775 ms

ico-list-star.png

ico-list-star.png

807 ms

EE_klubova_karta.JPG

EE_klubova_karta.JPG

863 ms

ico-map.png

ico-map.png

886 ms

Z152056_KB_EXP_banner_960x275pix_proc1_151x106x4x1_1505071657.jpg

Z152056_KB_EXP_banner_960x275pix_proc1_151x106x4x1_1505071657.jpg

887 ms

Z145293_EXP_Banner_800x320_Elektrowin__151x106x4x1_1503091347.jpg

Z145293_EXP_Banner_800x320_Elektrowin__151x106x4x1_1503091347.jpg

891 ms

dvakrat_deti_151x106x4x1_1501271032.JPG

dvakrat_deti_151x106x4x1_1501271032.JPG

926 ms

728x90.jpg

728x90.jpg

1092 ms

__utm.gif

__utm.gif

11 ms

arrows.png

arrows.png

817 ms

promo-dot.png

promo-dot.png

820 ms

Accessibility Review

expertelektro.cz accessibility score

71

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

expertelektro.cz best practices score

67

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

expertelektro.cz SEO score

82

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

    CS

  • Encoding

    UTF-8

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

expertelektro.cz

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