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web4u.cz

CZTracked Jul 20, 2026 → Jul 20, 2026

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Est. tech spend
$20/mo
1 priced tools
Email provider
—
Hosting
—
DNS host
—
rank #17,593
no SPF/DMARCno CMP
Contacts & company
No contact details detected.
Ad libraries:Meta ↗Google ↗
Security audit · passive posture check

CDN · 2

cdnjs
CDN
100%
Cloudflare
CDN
100%

JavaScript libraries · 2

jQuery2.1.1
JavaScript libraries
100%
jQuery UI
JavaScript libraries
100%

Security · 2

HSTS
Security
100%
reCAPTCHA
Security
100%

Web servers · 2

Nginx
Web servers · Reverse proxies
100%
OpenResty
Web servers
100%

Analytics · 1

Google AnalyticsGA4
Analytics
100%

Programming languages · 1

PHP
Programming languages
100%

Tag managers · 1

Google Tag Manager
Tag managers
100%

UI frameworks · 1

Bootstrap3.4.1
UI frameworks
100%

Web frameworks · 1

Nette Framework
Web frameworks
100%