13 technologies4 categories
extra.cz is built on React with Google Tag Manager and Google Analytics. It ranks #11,590 globally.
Analytics are handled by Google Tag Manager and Google Analytics. Infrastructure includes Cloudflare DNS and Cloudflare.
Tech Stack Highlights
Frameworks & Languages1
React
JavaScript frameworks
50%
1 evidence signal
HTML
implied by Radix UIAnalytics & Marketing7
Google Tag Manager
Tag managers
100%
3 evidence signals
HTML
googletagmanager.com/gtm.jsJS Global
google_tag_manager → objectJS Global
dataLayer → objectGoogle Analytics
Analytics
100%
3 evidence signals
Cookie
_gaScript
https://www.googletagmanager.com/gtag/js?id=G-D0HY453659&cx=c>m=4e6241Script
https://www.googletagmanager.com/gtag/js?id=G-TSDF8YRS0L&cx=c>m=4e6241Gemius
Analytics
100%
5 evidence signals
Script
https://gacz.hit.gemius.pl/xgemius.jsJS Global
gemius_hit → functionJS Global
gemius_init → functionJS Global
gemius_pending → functionJS Global
pp_gemius_hit → functionG
Google Workspace
Email
100%
1 evidence signal
dns
DKIM selector: googleM
Microsoft 365
Email
100%
1 evidence signal
dns
MX: extra-cz.mail.protection.outlook.comGoogle Publisher Tag
Advertising
75%
1 evidence signal
Script
https://securepubads.g.doubleclick.net/tag/js/gpt.jsPrebid
Advertising
75%
1 evidence signal
JS Global
pbjs → objectInfrastructure & Security4
C
Cloudflare DNS
PaaS
100%
1 evidence signal
dns
NS: michelle.ns.cloudflare.comCloudflare
CDN
75%
2 evidence signals
Header
9caa826a7a77ce90-SJCHeader
cloudflare: cloudflareHSTS
Security
75%
1 evidence signal
Header
max-age=16000000; includeSubDomains; preload;Didomi
Cookie compliance
75%
1 evidence signal
Script
https://sdk.privacy-center.org/9a8e2159-3781-4da1-9590-fbf86806f86e/loader.js?target=www.extra.czLibraries & Utilities1
jQueryv1.9.1
JavaScript libraries
75%
1 evidence signal
Script
https://www.extra.cz/js/jquery-1.9.1.min.js