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worker.cz screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

worker.cz

Sportovní potřeby, potřeby pro sport a volný čas - inSPORTline

Page Load Speed

6 sec in total

First Response

501 ms

Resources Loaded

4.5 sec

Page Rendered

933 ms

worker.cz screenshot

About Website

Visit worker.cz now to see the best up-to-date Worker content and also check out these interesting facts you probably never knew about worker.cz

Sportovní potřeby na letní i zimní sporty. Značky jako FILA, Devron, JOBE, Ghost a mnoho dalších. ✅ Doručení do druhého dne. ✅ Široký výběr. ✅ Přijatelné ceny.

Visit worker.cz

Key Findings

We analyzed Worker.cz page load time and found that the first response time was 501 ms and then it took 5.5 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

worker.cz performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value15.9 s

0/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value1,390 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0.265

46/100

15%

TTI (Time to Interactive)

Value15.3 s

7/100

10%

Network Requests Diagram

worker.cz

501 ms

sport

1893 ms

global.css

96 ms

embed.js

70 ms

jquery.js

211 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Worker.cz, 84% (89 requests) were made to Insportline.cz and 5% (5 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Insportline.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 337.2 kB (30%)

Content Size

1.1 MB

After Optimization

780.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Worker.cz main page is 1.1 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 419.3 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 289.8 kB

  • Original 322.4 kB
  • After minification 281.8 kB
  • After compression 32.6 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 40.6 kB, which is 13% 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 289.8 kB or 90% of the original size.

Image Optimization

-7%

Potential reduce by 27.5 kB

  • Original 419.3 kB
  • After minification 391.8 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. Worker images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 19.9 kB

  • Original 333.4 kB
  • After minification 333.4 kB
  • After compression 313.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 63 B

  • Original 42.6 kB
  • After minification 42.6 kB
  • After compression 42.5 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. Worker.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 38 (37%)

Requests Now

102

After Optimization

64

  • Images
  • JavaScript
  • CSS

The browser has sent 102 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Worker. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

worker.cz

worker.cz

501 ms

sport

sport

1893 ms

global.css

global.css

96 ms

embed.js

embed.js

70 ms

jquery.js

jquery.js

211 ms

bootstrap.js

bootstrap.js

428 ms

cookieconsent.js

cookieconsent.js

338 ms

custom.js

custom.js

426 ms

backend.js

backend.js

609 ms

backend_dev_join.js

backend_dev_join.js

425 ms

jquery.blockUI.js

jquery.blockUI.js

337 ms

embedded-catalog-guide-v43.js

embedded-catalog-guide-v43.js

56 ms

actions.js

actions.js

1080 ms

persoo.js

persoo.js

1360 ms

persoo-ui.js

persoo-ui.js

1297 ms

gtm.js

gtm.js

226 ms

icons.svg

icons.svg

778 ms

icons.svg

icons.svg

439 ms

ebike_hardtail_01.jpg

ebike_hardtail_01.jpg

423 ms

elektrokolobezky.jpg

elektrokolobezky.jpg

413 ms

216ZF674363.jpg

216ZF674363.jpg

423 ms

cyklo_prislusenstvi.png

cyklo_prislusenstvi.png

439 ms

elektroprisikona_01.jpg

elektroprisikona_01.jpg

437 ms

kolobezky_01.jpg

kolobezky_01.jpg

445 ms

trampoliny.jpg

trampoliny.jpg

437 ms

paddleboardyikona2.jpg

paddleboardyikona2.jpg

753 ms

vodacke_potreby.jpg

vodacke_potreby.jpg

752 ms

bazeny_a_vodni_svet__2.jpg

bazeny_a_vodni_svet__2.jpg

750 ms

koleckove_brusle.png

koleckove_brusle.png

751 ms

zimni_sporty_2.png

zimni_sporty_2.png

751 ms

micove_sporty.png

micove_sporty.png

808 ms

box.png

box.png

806 ms

sipky_terce_03.jpg

sipky_terce_03.jpg

806 ms

boardy_dle_ucelu_01.jpg

boardy_dle_ucelu_01.jpg

808 ms

luk_kat.jpg

luk_kat.jpg

809 ms

pusky_ikona.jpg

pusky_ikona.jpg

868 ms

zdravi_a_ochrana_01.jpg

zdravi_a_ochrana_01.jpg

870 ms

disney_barbie.jpg

disney_barbie.jpg

870 ms

odrazedla_pro_nejmensi_02.jpg

odrazedla_pro_nejmensi_02.jpg

874 ms

vozitko.jpg

vozitko.jpg

873 ms

detsky-pokojicek.jpg

detsky-pokojicek.jpg

874 ms

skutry_ikona.jpg

skutry_ikona.jpg

961 ms

voziky_ikona1.jpg

voziky_ikona1.jpg

962 ms

dvoukolky_a_elektroboardy_02.jpg

dvoukolky_a_elektroboardy_02.jpg

968 ms

paralyzer_ikona_01.jpg

paralyzer_ikona_01.jpg

964 ms

sportovni_a_slunecni_bryle_01.jpg

sportovni_a_slunecni_bryle_01.jpg

909 ms

sporttestery-krokomery-50x50px_01_03.jpg

sporttestery-krokomery-50x50px_01_03.jpg

833 ms

storm_type_foundry_-_etelkanarrowmedium.woff

storm_type_foundry_-_etelkanarrowmedium.woff

931 ms

landing

landing

216 ms

js

js

119 ms

js

js

230 ms

destination

destination

228 ms

destination

destination

227 ms

botx.min.js

botx.min.js

531 ms

rc.js

rc.js

995 ms

fbevents.js

fbevents.js

448 ms

AKCE-K-elktrokolu__m-nad-70-000-Kc__-zdarma-paddleboard-450-450.jpg

AKCE-K-elktrokolu__m-nad-70-000-Kc__-zdarma-paddleboard-450-450.jpg

1236 ms

68322_Kellystore_22_Theos_F50_teal.jpg.webp

68322_Kellystore_22_Theos_F50_teal.jpg.webp

826 ms

darek-3-paddle.png

darek-3-paddle.png

778 ms

71264_Vanity_90_27_5.jpg.webp

71264_Vanity_90_27_5.jpg.webp

649 ms

74541_Kellystore_22_eMarc.jpg.webp

74541_Kellystore_22_eMarc.jpg.webp

648 ms

DSCF8925_2.jpg.webp

DSCF8925_2.jpg.webp

788 ms

DSCF8915_______obnoveny_2.jpg.webp

DSCF8915_______obnoveny_2.jpg.webp

782 ms

BrooklynII_01.jpg.webp

BrooklynII_01.jpg.webp

775 ms

MiamiII_01.jpg.webp

MiamiII_01.jpg.webp

776 ms

PhoenixII_01.jpg.webp

PhoenixII_01.jpg.webp

771 ms

DSCF9182.jpg.webp

DSCF9182.jpg.webp

828 ms

DSCF9170.jpg.webp

DSCF9170.jpg.webp

601 ms

DSCF9967.jpg.webp

DSCF9967.jpg.webp

523 ms

new_2024_002.jpg.webp

new_2024_002.jpg.webp

524 ms

new_2024_001.jpg.webp

new_2024_001.jpg.webp

524 ms

1_3_01.jpeg.webp

1_3_01.jpeg.webp

712 ms

IMG_1863_2_22.jpg.webp

IMG_1863_2_22.jpg.webp

709 ms

IMG_1856_2_22.jpg.webp

IMG_1856_2_22.jpg.webp

660 ms

74621_Kellystore_23_Spider_30_black_27.5.jpg.webp

74621_Kellystore_23_Spider_30_black_27.5.jpg.webp

659 ms

74625_Kellystore_23_Spider_10_green_27.5.jpg.webp

74625_Kellystore_23_Spider_10_green_27.5.jpg.webp

658 ms

74622_Kellystore_23_Spider_10_neon_yellow_27.5.jpg.webp

74622_Kellystore_23_Spider_10_neon_yellow_27.5.jpg.webp

657 ms

74601_Kellystore_23_Spider_50_black_29.jpg.webp

74601_Kellystore_23_Spider_50_black_29.jpg.webp

657 ms

poradime-vam@10.png

poradime-vam@10.png

617 ms

sportywe.png

sportywe.png

598 ms

vyrobce.svg

vyrobce.svg

598 ms

zaruka10.svg

zaruka10.svg

597 ms

thumbsup.svg

thumbsup.svg

654 ms

doprava_fast.svg

doprava_fast.svg

660 ms

servis.svg

servis.svg

661 ms

servis-u-zakaznika.svg

servis-u-zakaznika.svg

577 ms

vymena-vraceni.svg

vymena-vraceni.svg

577 ms

splatky.svg

splatky.svg

576 ms

sleva-za-vernost.svg

sleva-za-vernost.svg

652 ms

30dni.svg

30dni.svg

692 ms

zaruka.svg

zaruka.svg

691 ms

shoproku_2023@10.png

shoproku_2023@10.png

608 ms

shoproku_2022@10.png

shoproku_2022@10.png

603 ms

shoproku_2021@10.png

shoproku_2021@10.png

600 ms

shoproku_2020@10.png

shoproku_2020@10.png

645 ms

kosikRoku@10.png

kosikRoku@10.png

516 ms

certified-year@10.png

certified-year@10.png

514 ms

certified-verified-2016@10.png

certified-verified-2016@10.png

515 ms

mbank@10.png

mbank@10.png

516 ms

payu@10.png

payu@10.png

516 ms

visa@10.png

visa@10.png

594 ms

mastercard@10.png

mastercard@10.png

545 ms

maestro@10.png

maestro@10.png

544 ms

essox@10.png

essox@10.png

546 ms

workflow.js

workflow.js

385 ms

workflow.js

workflow.js

108 ms

Accessibility Review

worker.cz accessibility score

82

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.

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

worker.cz best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

worker.cz SEO score

92

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 Worker.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 Worker.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

worker.cz

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