28.9 sec in total
2.3 sec
24.2 sec
2.5 sec
Visit centrum-aktivit.cz now to see the best up-to-date Centrum Aktivit content and also check out these interesting facts you probably never knew about centrum-aktivit.cz
Prodej sportovních potřeb a vybavení pro aktivní trávení volného času. Sportovní vybavení pro školy, školky, obce, sdružení a sportovní kluby.
Visit centrum-aktivit.czWe analyzed Centrum-aktivit.cz page load time and found that the first response time was 2.3 sec and then it took 26.7 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
centrum-aktivit.cz performance score
name
value
score
weighting
Value3.9 s
25/100
10%
Value12.1 s
0/100
25%
Value13.1 s
2/100
10%
Value1,220 ms
20/100
30%
Value0.177
68/100
15%
Value9.7 s
28/100
10%
2252 ms
225 ms
220 ms
616 ms
220 ms
Our browser made a total of 124 requests to load all elements on the main page. We found that 93% of them (115 requests) were addressed to the original Centrum-aktivit.cz, 2% (3 requests) were made to Google-analytics.com and 2% (2 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source Toplist.cz.
Page size can be reduced by 280.0 kB (16%)
1.7 MB
1.5 MB
In fact, the total size of Centrum-aktivit.cz main page is 1.7 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 1.5 MB which makes up the majority of the site volume.
Potential reduce by 176.4 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 58.5 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 176.4 kB or 91% of the original size.
Potential reduce by 98.1 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. Centrum Aktivit images are well optimized though.
Potential reduce by 802 B
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.
Potential reduce by 4.7 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. Centrum-aktivit.cz needs all CSS files to be minified and compressed as it can save up to 4.7 kB or 21% of the original size.
Number of requests can be reduced by 50 (42%)
119
69
The browser has sent 119 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Centrum Aktivit. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
www.centrum-aktivit.cz
2252 ms
screen.css
225 ms
analytics.js
220 ms
loadJs.php
616 ms
private_jquery.autocomplete.js
220 ms
jquery.fancybox.css
220 ms
jquery-ui.css
443 ms
anythingslider.css
446 ms
plusone.js
134 ms
ga.js
14 ms
__utm.gif
53 ms
__utm.gif
12 ms
cb=gapi.loaded_0
29 ms
top-menu.png
100 ms
arrow.png
203 ms
head-shopping-basket.png
247 ms
uni-button-shopping-basket-disabled.png
243 ms
button-shopping-basket2-disabled.png
245 ms
search.png
247 ms
button-search.png
305 ms
logo-centrum-aktivit.png
391 ms
head-menu-box.png
392 ms
arrow2.png
405 ms
head-menu-box-l.png
1435 ms
head-menu-box-r.png
1435 ms
head-menu-alphabet.png
1437 ms
head-menu-alphabet-l.png
1439 ms
head-menu-alphabet-r.png
1438 ms
8.png
1556 ms
9.png
1531 ms
13.jpg
1460 ms
39.jpg
1433 ms
40.jpg
1452 ms
33.jpg
1492 ms
cyklistika-w209-cfff.jpg
1451 ms
fitness-w209-cfff.png
1465 ms
kolobezky-2-w209-cfff.jpg
1470 ms
deti-w209-cfff.jpg
1460 ms
zatezova-vesta-liveup-5-kg-w210-cfff.jpg
1473 ms
sedco-nohejbalovy-mic-soft-w210-cfff.jpg
1479 ms
shotpad-gigant-deska-pro-nacvik-strelby-w210-cfff.jpg
1483 ms
nahravaci-stroj-tutor-player-plus-mf-remote-ac-dc-w210-cfff.JPG
1546 ms
nahravaci-stroj-tower-professional-player-mf-remote-w210-cfff.jpg
1521 ms
kalhoty-haven-dl-cubes-king-size-zelene-2-w210-cfff.jpg
1522 ms
voucher-pro-2-osoby-2-w210-cfff.jpg
1532 ms
voucher-pro-4-osoby-2-w210-cfff.jpg
1671 ms
vysouseci-valec-pro-antuku-a-ostatni-druhy-povrchu-2-w210-cfff.JPG
1790 ms
ccm-fitlite-80-hokejova-helma-w210-cfff.JPG
1860 ms
badminton-tenis-set-3m-stojany-na-kurt-vc-site-2-w210-cfff.JPG
1916 ms
zastena-na-tenisove-kurty-professional-pohledova-plachta-2x100m-role-w210-cfff.JPG
1834 ms
babolat-tubus-na-sber-tenisovych-micu-sberac-micku-w210-cfff.JPG
1841 ms
merco-koste-na-dvorce-kombi-kunstoff-w210-cfff.JPG
1881 ms
sitovacka-a1-l400-hlinikova-w210-cfff.JPG
1926 ms
koste-na-dvorce-kunststoff-v-alu-ramu-sire-270cm-w210-cfff.JPG
2008 ms
koste-na-dvorce-dratene-m200-sire-200-cm-w210-cfff.JPG
2030 ms
gala-bv5481s-volleyball-10-volejbalovy-mic-jump-w210-cfff.JPG
2009 ms
count.asp
20393 ms
ccm-resistance-300-hokejova-helma-2-w210-cfff.JPG
2130 ms
head-fxp-tenisovy-vyplet-200m-2-w210-cfff.JPG
2051 ms
gjs.php
1053 ms
bosport-nahradni-plexi-pro-mrizku-uniplexi-convex-w210-cfff.jpg
961 ms
unisex-svetr-norlender-narvik-norsky-vzor-w210-cfff.png
1296 ms
count.asp
314 ms
lenz-space-dryer-1-0-vysousec-obuvi-w210-cfff.JPG
1183 ms
bunda-damska-progress-andina-softshell-cerna-w210-cfff.jpg
1141 ms
bunda-damska-loap-talla-zelena-w210-cfff.jpg
1202 ms
ccm-resistance-combo-hokejova-helma-s-mrizkou-w210-cfff.JPG
1275 ms
gjs.php
349 ms
ccm-resistance-hokejova-helma-w210-cfff.JPG
1371 ms
ccm-rbz-110-sr-hokejove-kalhoty-w210-cfff.JPG
1512 ms
ccm-rbz-110-jr-hokejove-kalhoty-w210-cfff.JPG
1575 ms
ccm-ramena-rbz-110-jr-hokejova-w210-cfff.JPG
1659 ms
raketa-stolni-tenis-donic-waldner-600-w210-cfff.jpg
1454 ms
zinenka-combi-244-x-122-x-5-cm-protiskluzna-navaznost-suchymi-zipy-w210-cfff.JPG
1755 ms
napinak-na-umele-cary-geniala-w210-cfff.JPG
1798 ms
sitovacka-optiplan-se-snurou-sit-extra-dvojita-w210-cfff.JPG
1926 ms
sedacka-pro-rozhodci-deluxe-alu-w210-cfff.JPG
2130 ms
nahravaci-stroj-tutor-plus-model-3-w210-cfff.JPG
1855 ms
volejbalova-sit-beach-ekonom-s-lankem-w210-cfff.JPG
1971 ms
mic-volley-training-bv5551s-w210-cfff.jpg
1900 ms
kroket-sedco-4-osoby-w210-cfff.JPG
2019 ms
sporttester-polar-ft2-w210-cfff.jpg
2027 ms
voucher-pro-3-osoby-2-w210-cfff.jpg
2065 ms
nahravaci-stroj-tutor-plus-model-2-w210-cfff.JPG
2164 ms
kartac-na-antuku-petirady-s-nasadou-sire-140-cm-w210-cfff.jpg
2165 ms
odborna-technicka-kontrola-revize-hrist-revize-telocvicen-revize-sportovist-w210-cfff.png
2094 ms
nahravaci-stroj-tower-classic-w210-cfff.JPG
2036 ms
tenisova-sit-zdvojena-w210-cfff.jpg
1973 ms
button-up.png
1914 ms
map.png
1921 ms
arrow8.png
1842 ms
box-heading-decor1.png
1892 ms
box-heading-decor2.png
1861 ms
box-heading-decor3.png
1817 ms
box-heading-decor4.png
1707 ms
round-box-decor2.png
1721 ms
round-box-decor3.png
1748 ms
round-box-decor4.png
1755 ms
title-category-decor1.png
1720 ms
title-category-decor2.png
1653 ms
title-category-decor3.png
1637 ms
title-category-decor4.png
1653 ms
title-delivery-free.png
1817 ms
title-advise.png
1661 ms
footer-bg.png
1606 ms
footer-big-box.png
1498 ms
footer-box-heading-l.png
1472 ms
footer-box-heading-r.png
1445 ms
footer-big-box-decor2.png
1451 ms
footer-big-box-decor3.png
1380 ms
footer-big-box-decor4.png
1340 ms
footer-small-box.png
1276 ms
footer-small-box-decor2.png
1256 ms
footer-small-box-decor3.png
1288 ms
footer-small-box-decor4.png
1282 ms
arrow3.png
1254 ms
footer-alphabet1.png
1253 ms
footer-alphabet2.png
1212 ms
footer-alphabet3.png
1234 ms
footer-alphabet4.png
1186 ms
ui-bg_highlight-soft_100_eeeeee_1x100.png
1237 ms
anythingControls.png
1220 ms
nav-arrow.png
1166 ms
print.css
97 ms
centrum-aktivit.cz accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
centrum-aktivit.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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
centrum-aktivit.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Centrum-aktivit.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 Centrum-aktivit.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.
centrum-aktivit.cz
Open Graph description is not detected on the main page of Centrum Aktivit. 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: