Tools & Wizards About Us
expertcr.cz screenshot

Report Summary

  • 7

    Performance

    Renders faster than
    22% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

expertcr.cz

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

Page Load Speed

5 sec in total

First Response

376 ms

Resources Loaded

4.2 sec

Page Rendered

420 ms

expertcr.cz screenshot

About Website

Click here to check amazing Expert Cr content for Czech Republic. Otherwise, check out these important facts you probably never knew about expertcr.cz

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

Visit expertcr.cz

Key Findings

We analyzed Expertcr.cz page load time and found that the first response time was 376 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

expertcr.cz performance score

7

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value13.7 s

0/100

25%

SI (Speed Index)

Value10.0 s

9/100

10%

TBT (Total Blocking Time)

Value2,180 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.422

23/100

15%

TTI (Time to Interactive)

Value18.9 s

3/100

10%

Network Requests Diagram

expertcr.cz

376 ms

www.expert.cz

213 ms

www.expert.cz

873 ms

actions.js

96 ms

persoo.js

138 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Expertcr.cz, 33% (23 requests) were made to Img.expert.cz and 17% (12 requests) were made to Scr.expert.cz. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source Img.expert.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.8 MB (82%)

Content Size

3.4 MB

After Optimization

595.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Expertcr.cz main page is 3.4 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. 55% of websites need less resources to load. Images take 2.6 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 246.3 kB

  • Original 290.2 kB
  • After minification 254.9 kB
  • After compression 44.0 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 35.4 kB, which is 12% 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 246.3 kB or 85% of the original size.

Image Optimization

-96%

Potential reduce by 2.5 MB

  • Original 2.6 MB
  • After minification 100.4 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. Obviously, Expert Cr needs image optimization as it can save up to 2.5 MB or 96% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-4%

Potential reduce by 19.5 kB

  • Original 436.7 kB
  • After minification 436.7 kB
  • After compression 417.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 33.4 kB
  • After minification 33.4 kB
  • After compression 33.4 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. Expertcr.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 31 (48%)

Requests Now

65

After Optimization

34

  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Expert Cr. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

expertcr.cz

expertcr.cz

376 ms

www.expert.cz

www.expert.cz

213 ms

www.expert.cz

www.expert.cz

873 ms

actions.js

actions.js

96 ms

persoo.js

persoo.js

138 ms

persoo-ui.js

persoo-ui.js

181 ms

main.min.css

main.min.css

561 ms

jquery-3.5.1.min.js

jquery-3.5.1.min.js

574 ms

jquery-ui.min.js

jquery-ui.min.js

18 ms

lazysizes.min.js

lazysizes.min.js

462 ms

shp.js

shp.js

605 ms

bvsKlub.js

bvsKlub.js

462 ms

shp_1_2.js

shp_1_2.js

309 ms

lang_1.js

lang_1.js

417 ms

ajax.js

ajax.js

462 ms

jquery.cookie.js

jquery.cookie.js

608 ms

function.js

function.js

670 ms

cookiecontrol.js

cookiecontrol.js

609 ms

slick.min.js

slick.min.js

666 ms

workflow.js

workflow.js

462 ms

cookieconsent.js

cookieconsent.js

464 ms

integration

integration

50 ms

mainjs.js

mainjs.js

468 ms

loading_image.gif

loading_image.gif

111 ms

OOWidget.js

OOWidget.js

1333 ms

gtm.js

gtm.js

109 ms

gjs.php

gjs.php

673 ms

sprite.svg

sprite.svg

275 ms

landing

landing

582 ms

js

js

241 ms

poco_1240x400_1.png

poco_1240x400_1.png

1646 ms

Pug

Pug

547 ms

1240x400_Mora_Cashback_kveten_2024_01a.png

1240x400_Mora_Cashback_kveten_2024_01a.png

1627 ms

1240x400_Tyden_se_znackou_Leifheit_kveten_2024_01b.png

1240x400_Tyden_se_znackou_Leifheit_kveten_2024_01b.png

1634 ms

1240x400_Xiaomi%206S_plus_01a.png

1240x400_Xiaomi%206S_plus_01a.png

1414 ms

1240x400_VIVO%20V40SE_duben_2024_02a_1.png

1240x400_VIVO%20V40SE_duben_2024_02a_1.png

1521 ms

AEG_logo_250x250.jpg

AEG_logo_250x250.jpg

974 ms

beko-logo-01.jpg

beko-logo-01.jpg

1086 ms

bosch_logo_250x250.jpg

bosch_logo_250x250.jpg

1196 ms

Delonghi_logo_250x250.jpg

Delonghi_logo_250x250.jpg

1308 ms

ecg_newlogo_250x250.jpg

ecg_newlogo_250x250.jpg

1421 ms

workflow.js

workflow.js

519 ms

destination

destination

498 ms

fbevents.js

fbevents.js

737 ms

destination

destination

611 ms

destination

destination

679 ms

bat.js

bat.js

799 ms

img-arrow-left-dark.png

img-arrow-left-dark.png

451 ms

img-arrow-right-dark.png

img-arrow-right-dark.png

451 ms

cm

cm

248 ms

sync

sync

137 ms

187095727.js

187095727.js

29 ms

187095727

187095727

189 ms

retargeting.js

retargeting.js

591 ms

clarity.js

clarity.js

16 ms

100001915284-202.jpg

100001915284-202.jpg

254 ms

logo-tefal-250x250.jpg

logo-tefal-250x250.jpg

113 ms

Xiaomi_logo_250x250.jpg

Xiaomi_logo_250x250.jpg

114 ms

logo-krups-250x250.jpg

logo-krups-250x250.jpg

112 ms

mcled_logo_250x250.jpg

mcled_logo_250x250.jpg

204 ms

logo-rowenta-250x250.jpg

logo-rowenta-250x250.jpg

213 ms

Pra%C4%8Dky%20a%20su%C5%A1i%C4%8Dky_6.jpg

Pra%C4%8Dky%20a%20su%C5%A1i%C4%8Dky_6.jpg

112 ms

susicky.jpg

susicky.jpg

112 ms

My%C4%8Dka%20n%C3%A1dob%C3%AD.JPG

My%C4%8Dka%20n%C3%A1dob%C3%AD.JPG

112 ms

samsung_logo_250x250.jpg

samsung_logo_250x250.jpg

115 ms

340511365248-202.jpg

340511365248-202.jpg

113 ms

100001587378-202.jpg

100001587378-202.jpg

114 ms

100001945515-202.jpg

100001945515-202.jpg

218 ms

c.gif

c.gif

7 ms

Accessibility Review

expertcr.cz accessibility score

79

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

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

expertcr.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

Missing source maps for large first-party JavaScript

SEO Factors

expertcr.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

    UTF-8

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

expertcr.cz

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