Tools & Wizards About Us
electro.cz screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

electro.cz

Electro.cz - kupujte NEJEN bílé zboží, elektronika a domácí spotřebiče

Page Load Speed

7.3 sec in total

First Response

342 ms

Resources Loaded

6.6 sec

Page Rendered

411 ms

electro.cz screenshot

About Website

Visit electro.cz now to see the best up-to-date Electro content for Czech Republic and also check out these interesting facts you probably never knew about electro.cz

Electro.cz - široká nabídka bílého zboží, malých domácích spotřebičů a elektroniky za výhodné ceny. Vlastní doprava, výnos do patra zdarma, nákup na splátky.

Visit electro.cz

Key Findings

We analyzed Electro.cz page load time and found that the first response time was 342 ms and then it took 7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

electro.cz performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value10.1 s

0/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value5,580 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.086

93/100

15%

TTI (Time to Interactive)

Value15.4 s

7/100

10%

Network Requests Diagram

electro.cz

342 ms

www.electro.cz

1733 ms

default.css

338 ms

compress.electro.css.php

460 ms

jquery-ui-1.8.11.custom.css

343 ms

Our browser made a total of 217 requests to load all elements on the main page. We found that 95% of them (206 requests) were addressed to the original Electro.cz, 1% (3 requests) were made to Ssl.heureka.cz and 1% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Electro.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 650.0 kB (25%)

Content Size

2.6 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Electro.cz main page is 2.6 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 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 149.8 kB

  • Original 169.3 kB
  • After minification 145.3 kB
  • After compression 19.5 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. This page needs HTML code to be minified as it can gain 24.1 kB, which is 14% 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 149.8 kB or 88% of the original size.

Image Optimization

-4%

Potential reduce by 85.0 kB

  • Original 1.9 MB
  • After minification 1.8 MB

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. Electro images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 152.6 kB

  • Original 236.1 kB
  • After minification 202.5 kB
  • After compression 83.4 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 152.6 kB or 65% of the original size.

CSS Optimization

-87%

Potential reduce by 262.6 kB

  • Original 303.4 kB
  • After minification 254.2 kB
  • After compression 40.8 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. Electro.cz needs all CSS files to be minified and compressed as it can save up to 262.6 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 32 (15%)

Requests Now

214

After Optimization

182

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 214 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Electro. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

electro.cz

electro.cz

342 ms

www.electro.cz

www.electro.cz

1733 ms

default.css

default.css

338 ms

compress.electro.css.php

compress.electro.css.php

460 ms

jquery-ui-1.8.11.custom.css

jquery-ui-1.8.11.custom.css

343 ms

skin.css

skin.css

352 ms

jquery-ui-1.8.6.custom.css

jquery-ui-1.8.6.custom.css

356 ms

jquery.min.js

jquery.min.js

61 ms

jquery-ui-1.8.11.custom.min.js

jquery-ui-1.8.11.custom.min.js

448 ms

jquery.cookie.js

jquery.cookie.js

450 ms

slides.min.jquery.js

slides.min.jquery.js

490 ms

jquery.fancybox-1.3.4.pack.js

jquery.fancybox-1.3.4.pack.js

491 ms

jquery.jcarousel.min.js

jquery.jcarousel.min.js

561 ms

jquery.ui.core.js

jquery.ui.core.js

565 ms

jquery.tabs.pack.js

jquery.tabs.pack.js

575 ms

default.js

default.js

583 ms

eshop.js

eshop.js

711 ms

Zbozaky.js

Zbozaky.js

672 ms

gjs.php

gjs.php

547 ms

ga.js

ga.js

42 ms

bg.png

bg.png

114 ms

vlocky.png

vlocky.png

224 ms

overlay.png

overlay.png

115 ms

partnerske_kuchynske_studio.png

partnerske_kuchynske_studio.png

119 ms

content-bg.png

content-bg.png

119 ms

Osram_party_retezy.jpg

Osram_party_retezy.jpg

667 ms

Hoover_servis_banner_electro.jpg

Hoover_servis_banner_electro.jpg

556 ms

Hoover_wizard_banner_electro.jpg

Hoover_wizard_banner_electro.jpg

466 ms

2016-03_AEG_banner_electro.jpg

2016-03_AEG_banner_electro.jpg

588 ms

Aqua_1042_banner.jpg

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452 ms

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617 ms

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677 ms

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812 ms

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890 ms

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940 ms

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732 ms

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779 ms

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791 ms

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1169 ms

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12 ms

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1167 ms

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1076 ms

conversion.js

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36 ms

retargeting.js

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479 ms

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931 ms

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907 ms

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896 ms

widget.php

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119 ms

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807 ms

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800 ms

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756 ms

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796 ms

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743 ms

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694 ms

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728 ms

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725 ms

retargeting

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119 ms

MFQ3532.jpg

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662 ms

homepage-newsletter-bg.png

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694 ms

sprite.png

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694 ms

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684 ms

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706 ms

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711 ms

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692 ms

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694 ms

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695 ms

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682 ms

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706 ms

EHH6240ISK.jpg

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705 ms

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696 ms

3349f315f3481c8be26fc9d51ea8d769--mmf250x250.jpg

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678 ms

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680 ms

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681 ms

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705 ms

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700 ms

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701 ms

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676 ms

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678 ms

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679 ms

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706 ms

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696 ms

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707 ms

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677 ms

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678 ms

EDH%203887%20GDE.jpg

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678 ms

T86581IH3_cash.jpg

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708 ms

T88595IS3C_cash.jpg

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692 ms

63356__ms-640_mv-640.jpg

63356__ms-640_mv-640.jpg

711 ms

R-8011.jpg

R-8011.jpg

675 ms

Hoover.png

Hoover.png

677 ms

MFQ3532.jpg

MFQ3532.jpg

694 ms

WAB20262BY.jpeg

WAB20262BY.jpeg

704 ms

bosch_logo.jpg

bosch_logo.jpg

760 ms

index-banner-top.png

index-banner-top.png

713 ms

nejnizsi_ceny.jpg

nejnizsi_ceny.jpg

677 ms

zavolejte_nam.jpg

zavolejte_nam.jpg

677 ms

vlastni_doprava.jpg

vlastni_doprava.jpg

695 ms

nakup_na_splatky.jpg

nakup_na_splatky.jpg

701 ms

g21-zebrik.jpg

g21-zebrik.jpg

785 ms

sklenikapareniste.jpg

sklenikapareniste.jpg

897 ms

detsky_domek.jpg

detsky_domek.jpg

794 ms

lednicky.png

lednicky.png

1762 ms

osram.jpg

osram.jpg

713 ms

miele.jpg

miele.jpg

698 ms

Fagor_logo.jpg

Fagor_logo.jpg

767 ms

LOGO-BLACK-BLUM.jpg

LOGO-BLACK-BLUM.jpg

781 ms

Zelmer_logo.jpg

Zelmer_logo.jpg

759 ms

remington_logo.jpg

remington_logo.jpg

792 ms

logo.png

logo.png

834 ms

Daewoo_logo(1).jpg

Daewoo_logo(1).jpg

790 ms

Grundig_logo.jpg

Grundig_logo.jpg

795 ms

sony_logo.jpg

sony_logo.jpg

790 ms

Hair-Majesty_logo.jpg

Hair-Majesty_logo.jpg

795 ms

liebherr_logo.jpg

liebherr_logo.jpg

841 ms

beko_new.jpg

beko_new.jpg

850 ms

Lenco_logo.jpg

Lenco_logo.jpg

803 ms

LG_logo.jpg

LG_logo.jpg

804 ms

Woodster_logo.jpg

Woodster_logo.jpg

817 ms

Bauknecht_logo.jpg

Bauknecht_logo.jpg

848 ms

Electrolux_logo(1).jpg

Electrolux_logo(1).jpg

852 ms

mora_logo.jpg

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873 ms

metalac.jpg

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806 ms

ariston_logo(1).jpg

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833 ms

pure%20acoustics_logo.jpg

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870 ms

logokoncar.jpg

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858 ms

denon_logo.jpg

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881 ms

philco_logo.jpg

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858 ms

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832 ms

meliconi_logo.jpg

meliconi_logo.jpg

870 ms

Clean-Mate_logo.jpg

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855 ms

BW_Logo.jpg

BW_Logo.jpg

878 ms

Faber_logo.jpg

Faber_logo.jpg

867 ms

Best_logo.jpg

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873 ms

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890 ms

aeg_logo.jpg

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824 ms

GTM_logo.jpg

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821 ms

rohnson_logo.jpg

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816 ms

logotopfield.gif

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791 ms

steinner.jpg

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809 ms

bosch_logo.jpg

bosch_logo.jpg

805 ms

Krups_logo.jpg

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817 ms

Drazice_logo.jpg

Drazice_logo.jpg

820 ms

samsung_logo.jpg

samsung_logo.jpg

790 ms

B-TECH_logo.jpg

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804 ms

Hoover_logo.jpg

Hoover_logo.jpg

808 ms

sencor_logo.jpg

sencor_logo.jpg

812 ms

gorenje_logo.jpg

gorenje_logo.jpg

826 ms

sharp_logo.jpg

sharp_logo.jpg

793 ms

Kenwood_logo.jpg

Kenwood_logo.jpg

801 ms

remoska_logo.jpg

remoska_logo.jpg

796 ms

Garmin_logo.jpg

Garmin_logo.jpg

796 ms

Zanussi_logo.JPG

Zanussi_logo.JPG

803 ms

Oral-B_Logo.gif

Oral-B_Logo.gif

792 ms

Whirlpool_logo.jpg

Whirlpool_logo.jpg

745 ms

Amica_logo.jpg

Amica_logo.jpg

788 ms

siemens_logo.jpg

siemens_logo.jpg

773 ms

irdeto_logo.jpg

irdeto_logo.jpg

793 ms

sodastream_logo.jpg

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773 ms

jacobs_logo.jpg

jacobs_logo.jpg

732 ms

Indesit_logo.jpg

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743 ms

Grillbot.png

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764 ms

technisat_logo.jpg

technisat_logo.jpg

768 ms

Concept_logo.jpg

Concept_logo.jpg

770 ms

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715 ms

rowenta_logo.jpg

rowenta_logo.jpg

728 ms

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725 ms

eta_logo.jpg

eta_logo.jpg

753 ms

Fieldmann_logo.jpg

Fieldmann_logo.jpg

744 ms

Dewberry_logo.jpg

Dewberry_logo.jpg

715 ms

Tesla.jpg

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708 ms

panasonic_logo.jpg

panasonic_logo.jpg

702 ms

tefal_logo.jpg

tefal_logo.jpg

715 ms

tatramat_logo.jpg

tatramat_logo.jpg

734 ms

philips_logo.GIF

philips_logo.GIF

684 ms

scheppach_logo.jpg

scheppach_logo.jpg

705 ms

Candy_logo.jpg

Candy_logo.jpg

688 ms

ryobi_logo.jpg

ryobi_logo.jpg

684 ms

logo-kela.jpg

logo-kela.jpg

711 ms

logo1.png

logo1.png

675 ms

Vehicle_logo.jpg

Vehicle_logo.jpg

678 ms

loader.gif

loader.gif

706 ms

empty.gif

empty.gif

693 ms

hp-index-partners-left.png

hp-index-partners-left.png

677 ms

hp-index-partners-right.png

hp-index-partners-right.png

714 ms

content-bg-footer.png

content-bg-footer.png

674 ms

top.png

top.png

678 ms

sprite-winter.png

sprite-winter.png

811 ms

top-category-menu.png

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695 ms

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678 ms

akce-rozek.png

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714 ms

footer-logo.png

footer-logo.png

676 ms

print.css

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117 ms

1024.css

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118 ms

480.css

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118 ms

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right-zalozka-only.png

104 ms

Accessibility Review

electro.cz accessibility score

61

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

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

electro.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

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

electro.cz SEO score

85

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 doesn't use legible font sizes

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 Electro.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 Electro.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

electro.cz

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