5.3 sec in total
352 ms
4.5 sec
382 ms
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.czWe analyzed Worker.cz page load time and found that the first response time was 352 ms and then it took 4.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
worker.cz performance score
name
value
score
weighting
Value2.9 s
53/100
10%
Value11.8 s
0/100
25%
Value10.3 s
8/100
10%
Value3,630 ms
1/100
30%
Value0.245
51/100
15%
Value16.9 s
5/100
10%
352 ms
1234 ms
237 ms
63 ms
86 ms
Our browser made a total of 124 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Worker.cz, 49% (61 requests) were made to Insportline.cz and 10% (12 requests) were made to Eu-sonar.sociomantic.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Insportline.cz.
Page size can be reduced by 793.7 kB (52%)
1.5 MB
737.7 kB
In fact, the total size of Worker.cz main page is 1.5 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. 40% of websites need less resources to load. Javascripts take 809.4 kB which makes up the majority of the site volume.
Potential reduce by 86.6 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 17.4 kB, which is 17% 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 86.6 kB or 84% of the original size.
Potential reduce by 9.7 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.
Potential reduce by 509.5 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 509.5 kB or 63% of the original size.
Potential reduce by 188.0 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 needs all CSS files to be minified and compressed as it can save up to 188.0 kB or 83% of the original size.
Number of requests can be reduced by 47 (44%)
106
59
The browser has sent 106 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 16 to 1 for JavaScripts and as a result speed up the page load time.
worker.cz
352 ms
sport
1234 ms
web_cz_only.39.css
237 ms
jquery.min.js
63 ms
jquery-ui.min.js
86 ms
web.12.js
693 ms
conversion.js
35 ms
retargeting.js
751 ms
Sport-Sporty.jpg
126 ms
Sport-Zimni-sporty.jpg
117 ms
horska_kola_01.jpg
304 ms
Sport-Ochranne-a-zdrav.-pomucky.jpg
306 ms
216RL174535.jpg
430 ms
_MG_1963.jpg
426 ms
216RM574562.jpg
430 ms
216200560.jpg
424 ms
216200560.jpg
425 ms
216200570.jpg
420 ms
216200590.jpg
537 ms
1403---Speed.jpg
541 ms
_MG_1690.jpg
543 ms
_MG_1690.jpg
541 ms
216201390.jpg
543 ms
216201411.jpg
547 ms
216201411.jpg
650 ms
_MG_1688_01.jpg
655 ms
216201490.jpg
660 ms
_MG_1947.jpg
656 ms
_MG_1947.jpg
658 ms
216264190_bile_s_modrou.jpg
658 ms
216201411_01.jpg
864 ms
216201411_01.jpg
861 ms
_MG_1688_02.jpg
864 ms
216201490_01.jpg
863 ms
BLUELIFE_1_1.jpg
862 ms
Green_life_1.jpg
863 ms
PULSE_01_IMG_3556_MA.jpg
1053 ms
PULSE_01_IMG_3556_MA.jpg
1050 ms
PULSE_02_IMG_3591_MA.jpg
1054 ms
FLAME_01_IMG_3572_MA.jpg
1052 ms
FLAME_01_IMG_3572_MA.jpg
1055 ms
FLAME_02_IMG_3581_MA.jpg
1052 ms
PRESTIGE_01_IMG_3559_MA.jpg
1163 ms
gtm.js
251 ms
PRESTIGE_01_IMG_3559_MA.jpg
1148 ms
open_sans_400.woff
1356 ms
open_sans_600.woff
1328 ms
172 ms
retargeting
168 ms
insportline-cz
462 ms
analytics.js
90 ms
conversion_async.js
55 ms
fbds.js
306 ms
loader.js
1101 ms
trck.js
832 ms
open_sans_700.woff
1168 ms
insportline.woff
918 ms
45 ms
16 ms
15 ms
linkid.js
11 ms
collect
11 ms
collect
56 ms
PRESTIGE_02_IMG_3569_MA.jpg
866 ms
SECRET_01_IMG_3563_MA.jpg
873 ms
SECRET_01_IMG_3563_MA.jpg
915 ms
SECRET_02_IMG_3552_MA.jpg
976 ms
ENERGY_01_IMG_3597_MA.jpg
988 ms
ENERGY_01_IMG_3597_MA.jpg
1041 ms
ga-audiences
22 ms
ENERGY_02_IMG_3584_MA.jpg
988 ms
GALLANT_01_IMG_3601_MA.jpg
992 ms
GALLANT_01_IMG_3601_MA.jpg
1025 ms
GALLANT_02_IMG_3594_MA.jpg
1027 ms
CONTROL_01_IMG_3578_MA.jpg
1027 ms
CONTROL_01_IMG_3578_MA.jpg
1028 ms
92 ms
view
104 ms
CONTROL_02_IMG_3604_MA.jpg
998 ms
cetelem_jarni_2015_beznavyseni_mini.jpg
1229 ms
lazy.gif
1025 ms
sprite@1x_v7.png
1152 ms
flags@1x.png
1028 ms
ui-bg_flat_75_ffffff_40x100.png
1031 ms
sociomantic
838 ms
UserMatch.ashx
262 ms
sync.cgi
633 ms
u.php
150 ms
serve
333 ms
pixel
278 ms
usersync
275 ms
Pug
272 ms
v1
885 ms
321 ms
info.php
512 ms
tg-03.yieldpartners.com
626 ms
129 ms
rum
34 ms
match
32 ms
match
99 ms
match
184 ms
tap.php
23 ms
match
259 ms
sd
24 ms
match
247 ms
match
253 ms
cm.gif
6 ms
141 ms
setID
268 ms
mapuser
107 ms
match
165 ms
match
423 ms
256 ms
match
98 ms
smartchat-2.1.1.min.css
229 ms
smartchat-2.1.1.min.js
345 ms
bootstrap.php
401 ms
match
110 ms
match
97 ms
285 ms
286 ms
match
96 ms
194 ms
280 ms
worker.cz accessibility score
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
Buttons do not have an accessible name
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
worker.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
worker.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
CS
CS
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.
worker.cz
Open Graph description is not detected on the main page of Worker. 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: