Tools & Wizards About Us
centrumelektroniki.pl screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

centrumelektroniki.pl

centrumelektroniki.pl | centrumelektroniki.pl

Page Load Speed

5.4 sec in total

First Response

408 ms

Resources Loaded

4.7 sec

Page Rendered

304 ms

centrumelektroniki.pl screenshot

About Website

Visit centrumelektroniki.pl now to see the best up-to-date Centrumelektroniki content for Poland and also check out these interesting facts you probably never knew about centrumelektroniki.pl

Wszystko dla Ciebie, coś dla każdego. Zamawiaj szybko i bezpiecznie, w atrakcyjnych cenach. Najlepsze promocje. Ogromny wybór produktów do domu i ogrodu. Bezproblemowe zwroty i serwis gwarancyjny

Visit centrumelektroniki.pl

Key Findings

We analyzed Centrumelektroniki.pl page load time and found that the first response time was 408 ms and then it took 5 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

centrumelektroniki.pl performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

16/100

10%

LCP (Largest Contentful Paint)

Value13.6 s

0/100

25%

SI (Speed Index)

Value14.5 s

1/100

10%

TBT (Total Blocking Time)

Value790 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value0.204

61/100

15%

TTI (Time to Interactive)

Value13.6 s

11/100

10%

Network Requests Diagram

centrumelektroniki.pl

408 ms

www.centrumelektroniki.pl

2641 ms

stylesheet.css

177 ms

box.css

178 ms

lytebox.css

183 ms

Our browser made a total of 124 requests to load all elements on the main page. We found that 98% of them (122 requests) were addressed to the original Centrumelektroniki.pl, 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain Centrumelektroniki.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 537.4 kB (58%)

Content Size

919.0 kB

After Optimization

381.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Centrumelektroniki.pl main page is 919.0 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. 35% of websites need less resources to load. HTML takes 437.6 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 396.9 kB

  • Original 437.6 kB
  • After minification 425.3 kB
  • After compression 40.7 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 396.9 kB or 91% of the original size.

Image Optimization

-11%

Potential reduce by 38.1 kB

  • Original 342.6 kB
  • After minification 304.5 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, Centrumelektroniki needs image optimization as it can save up to 38.1 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 69.8 kB

  • Original 100.7 kB
  • After minification 82.4 kB
  • After compression 30.9 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 69.8 kB or 69% of the original size.

CSS Optimization

-86%

Potential reduce by 32.6 kB

  • Original 38.1 kB
  • After minification 25.4 kB
  • After compression 5.5 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. Centrumelektroniki.pl needs all CSS files to be minified and compressed as it can save up to 32.6 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 69 (57%)

Requests Now

122

After Optimization

53

  • Images
  • JavaScript
  • CSS

The browser has sent 122 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Centrumelektroniki. 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 from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

centrumelektroniki.pl

centrumelektroniki.pl

408 ms

www.centrumelektroniki.pl

www.centrumelektroniki.pl

2641 ms

stylesheet.css

stylesheet.css

177 ms

box.css

box.css

178 ms

lytebox.css

lytebox.css

183 ms

lytebox.js

lytebox.js

179 ms

general.js

general.js

181 ms

animacje.js

animacje.js

259 ms

swfobject.js

swfobject.js

260 ms

style.css

style.css

263 ms

jcssmenu.js

jcssmenu.js

277 ms

jcssmenu.css

jcssmenu.css

276 ms

zimowe_tlo.jpg

zimowe_tlo.jpg

275 ms

osc_arek.jpg

osc_arek.jpg

276 ms

osc_arek_dol.png

osc_arek_dol.png

91 ms

corner_left.gif

corner_left.gif

88 ms

pixel_trans.gif

pixel_trans.gif

92 ms

corner.gif

corner.gif

174 ms

corner_right.gif

corner_right.gif

176 ms

folder.gif

folder.gif

145 ms

mbar.gif

mbar.gif

225 ms

arrow.gif

arrow.gif

232 ms

arrow_right.gif

arrow_right.gif

243 ms

Y-T5002-4.jpg.thumb_133x105.jpg

Y-T5002-4.jpg.thumb_133x105.jpg

244 ms

stars_5.gif

stars_5.gif

242 ms

flashbaner.js

flashbaner.js

88 ms

ramka_dol_lewo.png

ramka_dol_lewo.png

112 ms

ramka_dol_srodek.png

ramka_dol_srodek.png

113 ms

ramka_dol_prawo.png

ramka_dol_prawo.png

110 ms

11494.jpg.thumb_70x52.5.jpg

11494.jpg.thumb_70x52.5.jpg

110 ms

corner_left.gif

corner_left.gif

110 ms

corner_right.gif

corner_right.gif

190 ms

polecany.gif

polecany.gif

191 ms

37545.jpg.thumb_140x105.jpg

37545.jpg.thumb_140x105.jpg

191 ms

small_view_a.png

small_view_a.png

192 ms

button_buy_now_a.png

button_buy_now_a.png

194 ms

39269.jpg.thumb_140x105.jpg

39269.jpg.thumb_140x105.jpg

195 ms

38244.jpg.thumb_140x105.jpg

38244.jpg.thumb_140x105.jpg

252 ms

35535.jpg.thumb_140x105.jpg

35535.jpg.thumb_140x105.jpg

259 ms

41355.jpg.thumb_140x105.jpg

41355.jpg.thumb_140x105.jpg

260 ms

31906.jpg.thumb_140x105.jpg

31906.jpg.thumb_140x105.jpg

261 ms

34401.jpg.thumb_140x105.jpg

34401.jpg.thumb_140x105.jpg

266 ms

24740.jpg.thumb_140x105.jpg

24740.jpg.thumb_140x105.jpg

268 ms

28586.jpg.thumb_140x105.jpg

28586.jpg.thumb_140x105.jpg

337 ms

28133.jpg.thumb_140x105.jpg

28133.jpg.thumb_140x105.jpg

343 ms

button_login.png

button_login.png

346 ms

iemail.gif

iemail.gif

349 ms

t_n.gif

t_n.gif

354 ms

gg.php

gg.php

518 ms

category_line.gif

category_line.gif

421 ms

akceptujemy_platnosci_4.gif

akceptujemy_platnosci_4.gif

427 ms

zaufana-strona-certyfikat.gif

zaufana-strona-certyfikat.gif

432 ms

rapidssl_ssl_certificate256.gif

rapidssl_ssl_certificate256.gif

434 ms

logoAllegro.gif

logoAllegro.gif

442 ms

paypal_logo.gif

paypal_logo.gif

506 ms

logo_poczta%20.jpg

logo_poczta%20.jpg

513 ms

ups.gif

ups.gif

521 ms

siodemka.gif

siodemka.gif

522 ms

logo_opineo.png

logo_opineo.png

520 ms

logo_ceneo.png

logo_ceneo.png

580 ms

logo_sklepy24.png

logo_sklepy24.png

674 ms

logo_rzetelna.png

logo_rzetelna.png

503 ms

opineo1.png

opineo1.png

676 ms

promocja.gif

promocja.gif

507 ms

4388.jpg.thumb_140x105.jpg

4388.jpg.thumb_140x105.jpg

519 ms

3591.jpg.thumb_52x105.jpg

3591.jpg.thumb_52x105.jpg

574 ms

449.jpg.thumb_117x105.jpg

449.jpg.thumb_117x105.jpg

570 ms

ga.js

ga.js

25 ms

__utm.gif

__utm.gif

29 ms

2566.jpg.thumb_52x105.jpg

2566.jpg.thumb_52x105.jpg

513 ms

36229.jpg.thumb_140x105.jpg

36229.jpg.thumb_140x105.jpg

528 ms

4671.jpg.thumb_34x105.jpg

4671.jpg.thumb_34x105.jpg

579 ms

3589.jpg.thumb_140x105.jpg

3589.jpg.thumb_140x105.jpg

586 ms

6301.jpg.thumb_140x105.jpg

6301.jpg.thumb_140x105.jpg

596 ms

3101.jpg.thumb_123x105.jpg

3101.jpg.thumb_123x105.jpg

587 ms

3238.jpg.thumb_130x105.jpg

3238.jpg.thumb_130x105.jpg

556 ms

4889.jpg.thumb_34x105.jpg

4889.jpg.thumb_34x105.jpg

598 ms

6895.jpg.thumb_31x105.jpg

6895.jpg.thumb_31x105.jpg

605 ms

6302.jpg.thumb_140x105.jpg

6302.jpg.thumb_140x105.jpg

608 ms

5171.jpg.thumb_140x105.jpg

5171.jpg.thumb_140x105.jpg

609 ms

menu.gif

menu.gif

612 ms

input_email.png

input_email.png

559 ms

belka_lewo.png

belka_lewo.png

599 ms

belka_srodek.png

belka_srodek.png

602 ms

belka_prawo.png

belka_prawo.png

605 ms

button_update_cart_b.png

button_update_cart_b.png

607 ms

button_delete_b.png

button_delete_b.png

546 ms

button_confirm_order_b.png

button_confirm_order_b.png

556 ms

do_koszyka_b.png

do_koszyka_b.png

593 ms

button_search_b.png

button_search_b.png

599 ms

button_tell_a_friend_b.png

button_tell_a_friend_b.png

598 ms

button_remove_notifications_b.png

button_remove_notifications_b.png

538 ms

button_continue_shopping_b.png

button_continue_shopping_b.png

538 ms

button_reviews_b.png

button_reviews_b.png

553 ms

button_edit_account_b.png

button_edit_account_b.png

586 ms

button_shipping_options_b.png

button_shipping_options_b.png

592 ms

button_reviews_list_b.png

button_reviews_list_b.png

594 ms

button_change_address_b.png

button_change_address_b.png

541 ms

button_create_account_b.png

button_create_account_b.png

540 ms

button_print_order_b.png

button_print_order_b.png

550 ms

button_add_address_b.png

button_add_address_b.png

573 ms

button_unsubscribe_b.png

button_unsubscribe_b.png

527 ms

button_notifications_b.png

button_notifications_b.png

528 ms

button_address_book_b.png

button_address_book_b.png

525 ms

button_update_b.png

button_update_b.png

537 ms

button_invoice_b.png

button_invoice_b.png

538 ms

button_sold_b.png

button_sold_b.png

516 ms

button_in_cart_b.png

button_in_cart_b.png

519 ms

button_quick_find_b.png

button_quick_find_b.png

523 ms

button_history_b.png

button_history_b.png

526 ms

shopping_cart_b.png

shopping_cart_b.png

539 ms

button_buy_now_b.png

button_buy_now_b.png

538 ms

button_continue_b.png

button_continue_b.png

516 ms

button_back_b.png

button_back_b.png

518 ms

small_view_b.png

small_view_b.png

524 ms

button_prev_b.png

button_prev_b.png

524 ms

button_checkout_b.png

button_checkout_b.png

538 ms

button_write_review_b.png

button_write_review_b.png

537 ms

button_select_b.png

button_select_b.png

514 ms

small_delete_b.png

small_delete_b.png

518 ms

button_printorder_b.png

button_printorder_b.png

523 ms

small_edit_b.png

small_edit_b.png

526 ms

button_next_b.png

button_next_b.png

538 ms

print.css

print.css

88 ms

Accessibility Review

centrumelektroniki.pl accessibility score

70

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

centrumelektroniki.pl 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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

centrumelektroniki.pl 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

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

    PL

  • Language Claimed

    PL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Centrumelektroniki.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it matches the claimed language. Our system also found out that Centrumelektroniki.pl 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

centrumelektroniki.pl

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