Tools & Wizards About Us
2j2k.cz screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

2j2k.cz

2J2K.CZ | Makenotes papírenské zboží, náplně do tiskáren, servisní vysavače

Page Load Speed

4.9 sec in total

First Response

227 ms

Resources Loaded

4.4 sec

Page Rendered

330 ms

2j2k.cz screenshot

About Website

Click here to check amazing 2J2K content. Otherwise, check out these important facts you probably never knew about 2j2k.cz

2J2K.CZ - Vše skladem pro tiskárny, Makenotes pouzdra na tužky, servisní vysavače, barvící pásky, iPad obaly, Makenotes batohy, sešity, bloky, záznamové knihy, kosmetické taštičky, pouzdra na brýle.

Visit 2j2k.cz

Key Findings

We analyzed 2j2k.cz page load time and found that the first response time was 227 ms and then it took 4.7 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

2j2k.cz performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

12/100

10%

LCP (Largest Contentful Paint)

Value12.7 s

0/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value2,080 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.039

100/100

15%

TTI (Time to Interactive)

Value12.9 s

13/100

10%

Network Requests Diagram

2j2k.cz

227 ms

www.2j2k.cz

711 ms

source-sans-3.css

397 ms

exo-2.css

402 ms

webfont.js

70 ms

Our browser made a total of 132 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original 2j2k.cz, 86% (113 requests) were made to Cdn.myshoptet.com and 2% (3 requests) were made to Gravatar.com. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Cz.im9.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 440.7 kB (15%)

Content Size

2.9 MB

After Optimization

2.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 2j2k.cz main page is 2.9 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. 65% of websites need less resources to load. Images take 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 356.3 kB

  • Original 391.3 kB
  • After minification 272.0 kB
  • After compression 35.0 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 119.3 kB, which is 30% 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 356.3 kB or 91% of the original size.

Image Optimization

-3%

Potential reduce by 82.6 kB

  • Original 2.4 MB
  • After minification 2.4 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. 2J2K images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 1.0 kB

  • Original 58.1 kB
  • After minification 58.1 kB
  • After compression 57.0 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

-9%

Potential reduce by 775 B

  • Original 8.4 kB
  • After minification 8.4 kB
  • After compression 7.6 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. 2j2k.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 29 (23%)

Requests Now

128

After Optimization

99

  • Images
  • JavaScript
  • CSS

The browser has sent 128 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 2J2K. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

2j2k.cz

2j2k.cz

227 ms

www.2j2k.cz

www.2j2k.cz

711 ms

source-sans-3.css

source-sans-3.css

397 ms

exo-2.css

exo-2.css

402 ms

webfont.js

webfont.js

70 ms

bootstrap-grid.min.css

bootstrap-grid.min.css

88 ms

jquery-ui.css

jquery-ui.css

66 ms

font.css

font.css

408 ms

animate.css

animate.css

409 ms

css

css

83 ms

slick.css

slick.css

79 ms

screen.css

screen.css

597 ms

rubin2.css

rubin2.css

412 ms

js

js

124 ms

sdk.js

sdk.js

68 ms

jquery-1.11.3.min.js

jquery-1.11.3.min.js

491 ms

main-3g.js.c10e7340ef84e513efa3.js

main-3g.js.c10e7340ef84e513efa3.js

752 ms

datepicker-cs.js

datepicker-cs.js

406 ms

rc.js

rc.js

751 ms

slick.min.js

slick.min.js

410 ms

scripts.js

scripts.js

408 ms

fix-articles.js

fix-articles.js

499 ms

AppShoptet.js

AppShoptet.js

409 ms

gtm.js

gtm.js

45 ms

gjs.php

gjs.php

1027 ms

2j2k-original.png

2j2k-original.png

218 ms

music.jpg

music.jpg

873 ms

secret.jpg

secret.jpg

910 ms

textures.jpg

textures.jpg

909 ms

v2.png

v2.png

219 ms

v1.png

v1.png

219 ms

v3.png

v3.png

221 ms

v4.png

v4.png

256 ms

3009278_paska-brother-tze-861--tz-861-36-mm-x-8-m-zlata-cerny-tisk-kompatibilni.jpg

3009278_paska-brother-tze-861--tz-861-36-mm-x-8-m-zlata-cerny-tisk-kompatibilni.jpg

299 ms

3009272_paska-brother-tze-841--tz-841-18-mm-x-8-m-zlata-cerny-tisk-kompatibilni.jpg

3009272_paska-brother-tze-841--tz-841-18-mm-x-8-m-zlata-cerny-tisk-kompatibilni.jpg

318 ms

3009269_paska-brother-tze-v741--tz-v741-18-mm-x-5-5-m-zelena-cerny-tisk-vinyl-kompatibilni.jpg

3009269_paska-brother-tze-v741--tz-v741-18-mm-x-5-5-m-zelena-cerny-tisk-vinyl-kompatibilni.jpg

375 ms

payments.png

payments.png

864 ms

shoptetLogo.svg

shoptetLogo.svg

866 ms

cart.svg

cart.svg

786 ms

email-f.svg

email-f.svg

788 ms

phone-f.svg

phone-f.svg

790 ms

sdk.js

sdk.js

132 ms

shoptet.woff

shoptet.woff

683 ms

44 ms

js.js

js.js

996 ms

cookies-bg.svg

cookies-bg.svg

519 ms

user.svg

user.svg

158 ms

slider-arrow-left.png

slider-arrow-left.png

158 ms

slider-arrow-right.png

slider-arrow-right.png

159 ms

kids.jpg

kids.jpg

95 ms

bcaf46b0e40f2f871cedf768ca022a59

bcaf46b0e40f2f871cedf768ca022a59

22 ms

sam.jpg

sam.jpg

95 ms

76042076-pouzdro-na-tuzky-color-book-b-velke.jpg

76042076-pouzdro-na-tuzky-color-book-b-velke.jpg

95 ms

76170340-privesek-na-klice-be-original-in-autumn.jpg

76170340-privesek-na-klice-be-original-in-autumn.jpg

96 ms

76081020-penezenka-boogie-woogie.jpg

76081020-penezenka-boogie-woogie.jpg

98 ms

76112702-batoh-music-velky.jpg

76112702-batoh-music-velky.jpg

97 ms

76122020-kosmeticka-tasticka-boogie-woogie.jpg

76122020-kosmeticka-tasticka-boogie-woogie.jpg

183 ms

76130270-pouzdro-na-bryle-shabby-blue-pruzinove-zavirani.jpg

76130270-pouzdro-na-bryle-shabby-blue-pruzinove-zavirani.jpg

186 ms

76162020-01.jpg

76162020-01.jpg

191 ms

xc_banner_01rb.jpg

xc_banner_01rb.jpg

188 ms

76034720-zapisnik-a4-go-wild.jpg

76034720-zapisnik-a4-go-wild.jpg

191 ms

9907-1.jpg

9907-1.jpg

193 ms

9937-1.jpg

9937-1.jpg

282 ms

10015.jpg

10015.jpg

292 ms

76035883-zapisnik-a5-be-original-in-spring-04.jpg

76035883-zapisnik-a5-be-original-in-spring-04.jpg

281 ms

makenotes.png

makenotes.png

283 ms

76100358-poradac-a4-bloom-up-ctyrkrouzkovy-s-predtistenymi-listy-03.jpg

76100358-poradac-a4-bloom-up-ctyrkrouzkovy-s-predtistenymi-listy-03.jpg

284 ms

toner_flowers.jpg

toner_flowers.jpg

286 ms

tonerov___kazety.jpg

tonerov___kazety.jpg

375 ms

barv__c___p__ska_8425-1.jpg

barv__c___p__ska_8425-1.jpg

375 ms

kotou__ky.jpg

kotou__ky.jpg

383 ms

barv__c___v__le__ek.jpg

barv__c___v__le__ek.jpg

384 ms

fotopap__r.jpg

fotopap__r.jpg

380 ms

samolep__c___etikety.jpg

samolep__c___etikety.jpg

387 ms

__ist__c___prost__edek.jpg

__ist__c___prost__edek.jpg

467 ms

__t__tky_pro_tisk__rny.jpg

__t__tky_pro_tisk__rny.jpg

467 ms

termofolie_pro_faxy.jpg

termofolie_pro_faxy.jpg

476 ms

faxov___pap__r.jpg

faxov___pap__r.jpg

475 ms

korek__n___p__ska.jpg

korek__n___p__ska.jpg

478 ms

v__lcov___jednotka_-_obr__zek.jpg

v__lcov___jednotka_-_obr__zek.jpg

479 ms

tiskov___struna__-_modr__.jpg

tiskov___struna__-_modr__.jpg

564 ms

filtr_do_vysava__e.jpg

filtr_do_vysava__e.jpg

564 ms

sada_mal__ch_n__stavc___vysava__.jpg

sada_mal__ch_n__stavc___vysava__.jpg

573 ms

vysava___atrix.jpg

vysava___atrix.jpg

574 ms

n__hradn___d__l_atrix.jpg

n__hradn___d__l_atrix.jpg

571 ms

3009266_paska-brother-tze-v731--tz-v731-12-mm-x-5-5-m-zelena-cerny-tisk-vinyl-kompatibilni.jpg

3009266_paska-brother-tze-v731--tz-v731-12-mm-x-5-5-m-zelena-cerny-tisk-vinyl-kompatibilni.jpg

576 ms

e711039cd9d427b0419d132072b898cb

e711039cd9d427b0419d132072b898cb

15 ms

ec037ca1dbaf43eaac71db9904fbe6a0

ec037ca1dbaf43eaac71db9904fbe6a0

17 ms

3009263_paska-brother-tze-v721--tz-v721-9-mm-x-5-5-m-zelena-cerny-tisk-vinyl-kompatibilni.jpg

3009263_paska-brother-tze-v721--tz-v721-9-mm-x-5-5-m-zelena-cerny-tisk-vinyl-kompatibilni.jpg

580 ms

3009260_paska-brother-tze-v651--tz-v651-24-mm-x-5-5-m-zluta-cerny-tisk-vinyl-kompatibilni.jpg

3009260_paska-brother-tze-v651--tz-v651-24-mm-x-5-5-m-zluta-cerny-tisk-vinyl-kompatibilni.jpg

569 ms

3009257_paska-brother-tze-v641--tz-v641-18-mm-x-5-5-m-zluta-cerny-tisk-vinyl-kompatibilni.jpg

3009257_paska-brother-tze-v641--tz-v641-18-mm-x-5-5-m-zluta-cerny-tisk-vinyl-kompatibilni.jpg

605 ms

3009254_paska-brother-tze-v631--tz-v631-12-mm-x-5-5-m-zluta-cerny-tisk-vinyl-kompatibilni.jpg

3009254_paska-brother-tze-v631--tz-v631-12-mm-x-5-5-m-zluta-cerny-tisk-vinyl-kompatibilni.jpg

577 ms

3009251_paska-brother-tze-v621--tz-v621-9-mm-x-5-5-m-zluta-cerny-tisk-vinyl-kompatibilni.jpg

3009251_paska-brother-tze-v621--tz-v621-9-mm-x-5-5-m-zluta-cerny-tisk-vinyl-kompatibilni.jpg

592 ms

3009248_paska-brother-tze-v441--tz-v441-18-mm-x-5-5-m-cervena-cerny-tisk-vinyl-kompatibilni.jpg

3009248_paska-brother-tze-v441--tz-v441-18-mm-x-5-5-m-cervena-cerny-tisk-vinyl-kompatibilni.jpg

600 ms

3009245_paska-brother-tze-v431--tz-v431-12-mm-x-5-5-m-cervena-cerny-tisk-vinyl-kompatibilni.jpg

3009245_paska-brother-tze-v431--tz-v431-12-mm-x-5-5-m-cervena-cerny-tisk-vinyl-kompatibilni.jpg

594 ms

3009242_paska-brother-tze-v221--tz-v221-9-mm-x-5-5-m-bila-cerny-tisk-vinyl-kompatibilni.jpg

3009242_paska-brother-tze-v221--tz-v221-9-mm-x-5-5-m-bila-cerny-tisk-vinyl-kompatibilni.jpg

592 ms

3009089_paska-brother-fle-2511--flc-2511-45-x-21-mm-bila-cerny-tisk-predrezane-stitky-praporky-72-ks-kompatibilni.jpg

3009089_paska-brother-fle-2511--flc-2511-45-x-21-mm-bila-cerny-tisk-predrezane-stitky-praporky-72-ks-kompatibilni.jpg

593 ms

3008966_paska-brother-tze-v421--tz-v421-9-mm-x-5-5-m-cervena-cerny-tisk-vinyl-kompatibilni.jpg

3008966_paska-brother-tze-v421--tz-v421-9-mm-x-5-5-m-cervena-cerny-tisk-vinyl-kompatibilni.jpg

589 ms

3008963_paska-brother-tze-v251--tz-v251-24-mm-x-5-5-m-bila-cerny-tisk-vinyl-kompatibilni.jpg

3008963_paska-brother-tze-v251--tz-v251-24-mm-x-5-5-m-bila-cerny-tisk-vinyl-kompatibilni.jpg

603 ms

3008960_paska-brother-tze-v241--tz-v241-18-mm-x-5-5-m-bila-cerny-tisk-vinyl-kompatibilni.jpg

3008960_paska-brother-tze-v241--tz-v241-18-mm-x-5-5-m-bila-cerny-tisk-vinyl-kompatibilni.jpg

600 ms

3008957_paska-brother-tze-v231--tz-v231-12-mm-x-5-5-m-bila-cerny-tisk-vinyl-kompatibilni.jpg

3008957_paska-brother-tze-v231--tz-v231-12-mm-x-5-5-m-bila-cerny-tisk-vinyl-kompatibilni.jpg

573 ms

3008624_paska-brother-tze-mq831--tz-mq831-12-mm-x-5-m-matna-zlata-cerny-tisk-kompatibilni.jpg

3008624_paska-brother-tze-mq831--tz-mq831-12-mm-x-5-m-matna-zlata-cerny-tisk-kompatibilni.jpg

597 ms

1388938_paska-brother-tze-425--tz-425-9-mm-x-8-m-cervena-bily-tisk-kompatibilni.jpg

1388938_paska-brother-tze-425--tz-425-9-mm-x-8-m-cervena-bily-tisk-kompatibilni.jpg

582 ms

1388935_paska-brother-tze-s111--tz-s111-6-mm-x-8-m-pruhledna-cerny-tisk-extremne-lepiva-paska-kompatibilni.jpg

1388935_paska-brother-tze-s111--tz-s111-6-mm-x-8-m-pruhledna-cerny-tisk-extremne-lepiva-paska-kompatibilni.jpg

582 ms

623693_paska-brother-tze-se6-36-mm-x-8-m-bila-cerny-tisk-plombovaci-paska-kompatibilni.jpg

623693_paska-brother-tze-se6-36-mm-x-8-m-bila-cerny-tisk-plombovaci-paska-kompatibilni.jpg

598 ms

623690_paska-brother-tze-se5-24-mm-x-8-m-bila-cerny-tisk-plombovaci-paska-kompatibilni.jpg

623690_paska-brother-tze-se5-24-mm-x-8-m-bila-cerny-tisk-plombovaci-paska-kompatibilni.jpg

592 ms

623687_paska-brother-tze-se3-12-mm-x-8-m-bila-cerny-tisk-plombovaci-paska-kompatibilni.jpg

623687_paska-brother-tze-se3-12-mm-x-8-m-bila-cerny-tisk-plombovaci-paska-kompatibilni.jpg

575 ms

623684_paska-brother-tze-se2-9-mm-x-8-m-bila-cerny-tisk-plombovaci-paska-kompatibilni.jpg

623684_paska-brother-tze-se2-9-mm-x-8-m-bila-cerny-tisk-plombovaci-paska-kompatibilni.jpg

585 ms

18830_9445310-pouzdro-na-tuzky-boogie-woogie-male.jpg

18830_9445310-pouzdro-na-tuzky-boogie-woogie-male.jpg

581 ms

19055_9445535-penezenka-time-to-recycle-obdelnikova.jpg

19055_9445535-penezenka-time-to-recycle-obdelnikova.jpg

594 ms

18782_9445262-zapisnik-a5-fluorescent-diary-zluty.jpg

18782_9445262-zapisnik-a5-fluorescent-diary-zluty.jpg

597 ms

19100_9445580-kosmeticka-tasticka-metamorphosis-zluta.jpg

19100_9445580-kosmeticka-tasticka-metamorphosis-zluta.jpg

593 ms

19109_9445589-kosmeticka-tasticka-textures-rust.jpg

19109_9445589-kosmeticka-tasticka-textures-rust.jpg

575 ms

18779_9445259-zapisnik-a5-fluorescent-diary-oranzovy.jpg

18779_9445259-zapisnik-a5-fluorescent-diary-oranzovy.jpg

588 ms

19160_9445640-vizitkar-fiscagomma-colors-modry.jpg

19160_9445640-vizitkar-fiscagomma-colors-modry.jpg

580 ms

18794_9445274-zapisnik-a6-boogie-woogie.jpg

18794_9445274-zapisnik-a6-boogie-woogie.jpg

595 ms

18755_9445235-zapisnik-a5-boogie-woogie.jpg

18755_9445235-zapisnik-a5-boogie-woogie.jpg

601 ms

18899_9445379-pouzdro-na-tuzky-vintage-b-cervene-male.jpg

18899_9445379-pouzdro-na-tuzky-vintage-b-cervene-male.jpg

601 ms

19112_9445592-kosmeticka-tasticka-textures-wood.jpg

19112_9445592-kosmeticka-tasticka-textures-wood.jpg

586 ms

18947_9445427-pouzdro-na-tuzky-fiscagomma-colors-tyrkysove-male.jpg

18947_9445427-pouzdro-na-tuzky-fiscagomma-colors-tyrkysove-male.jpg

596 ms

19091_9445571-kosmeticka-tasticka-boogie-woogie.jpg

19091_9445571-kosmeticka-tasticka-boogie-woogie.jpg

585 ms

18809_9445289-zapisnik-a6-concrete.jpg

18809_9445289-zapisnik-a6-concrete.jpg

592 ms

19247_9445727-samolepici-blocek-s-deskami-fiscagomma-colors-modry.jpg

19247_9445727-samolepici-blocek-s-deskami-fiscagomma-colors-modry.jpg

601 ms

19046_9445526-penezenka-vintage-b-cervena.jpg

19046_9445526-penezenka-vintage-b-cervena.jpg

600 ms

18860_9445340-pouzdro-na-tuzky-basic-color-ruzove-velke.jpg

18860_9445340-pouzdro-na-tuzky-basic-color-ruzove-velke.jpg

589 ms

18953_9445433-pouzdro-na-tuzky-fiscagomma-colors-oranzove-male.jpg

18953_9445433-pouzdro-na-tuzky-fiscagomma-colors-oranzove-male.jpg

593 ms

18749_9445229-zapisnik-a4-time-to-recycle.jpg

18749_9445229-zapisnik-a4-time-to-recycle.jpg

573 ms

19184_9445664-privesek-na-klice-go-wild.jpg

19184_9445664-privesek-na-klice-go-wild.jpg

573 ms

18803_9445283-zapisnik-a6-blankie-me.jpg

18803_9445283-zapisnik-a6-blankie-me.jpg

578 ms

18974_9445454-klicenka-basic-color-cerna.jpg

18974_9445454-klicenka-basic-color-cerna.jpg

575 ms

18977_9445457-klicenka-basic-color-modra.jpg

18977_9445457-klicenka-basic-color-modra.jpg

567 ms

19103_9445583-kosmeticka-tasticka-metamorphosis-zelena.jpg

19103_9445583-kosmeticka-tasticka-metamorphosis-zelena.jpg

577 ms

Accessibility Review

2j2k.cz accessibility score

88

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

Best Practices

2j2k.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

2j2k.cz SEO score

89

Search Engine Optimization Advices

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 2j2k.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 2j2k.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

2j2k.cz

Open Graph data is detected on the main page of 2J2K. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: