Open
Cached
·
just now
UP
HTTP Status
200
Ping
89 ms
Technologies
6
SSL/TLS Certificate
View Full SSL Report
Issued By
C=US, O=Let's Encrypt, CN=R12
Security Score
81
/100
Network & Hosting
View DNS Records
Reverse DNS: www.web4u.cz
Technologies Detected
Infrastructure & Network (2)
| CDN |
Cloudflare CDN (cdnjs)
https://cdnjs.com
|
3.4.1 | |
|
Evidence:
|
|||
| Web Server |
OpenResty
https://openresty.org
|
||
|
Evidence:
|
|||
Development (1)
| JavaScript Library |
jQuery
https://jquery.com
|
2.1.1 | |
|
Evidence:
|
|||
Analytics & Marketing (1)
| Analytics |
Google Tag Manager
https://tagmanager.google.com
|
||
|
Evidence:
|
|||
Security & Privacy (1)
| Security |
Google reCAPTCHA
https://www.google.com/recaptcha
|
||
|
Evidence:
|
|||
Other Services (1)
| SSL Certificate |
Let's Encrypt
https://letsencrypt.org
|
||
|
Evidence:
|
|||
Metadata & SEO
Dependencies
📜 Scripts (14)
- • https://web4u.cz/static/presentation2014/js/jquery-2.1.1.min.js?bb911d52aff6ad1ab36dbfa834988de2b735a6ba
- • https://web4u.cz/z_js/jquery.cookie.js?bb911d52aff6ad1ab36dbfa834988de2b735a6ba
- • https://web4u.cz/z_js/jquery.easing.1.3.js?${w4u_hash_js}
- • https://web4u.cz/z_js/hd-infoFloat.js?bb911d52aff6ad1ab36dbfa834988de2b735a6ba
- • https://www.google.com/recaptcha/api.js?hl=cs
- • https://web4u.cz/static/presentation2014/js/gtm-helper.js
- • https://web4u.cz/static/presentation2014/js/jquery-ui.min.js
- • https://web4u.cz/z_js/whois-whisperer.js?bb911d52aff6ad1ab36dbfa834988de2b735a6ba
- • https://web4u.cz/web/js/jQuery/jquery.json.js?bb911d52aff6ad1ab36dbfa834988de2b735a6ba
- • https://web4u.cz/z_js/loading-process.js?bb911d52aff6ad1ab36dbfa834988de2b735a6ba
- • https://web4u.cz/z_js/loading-process-whois-whisperer-integration.js
- • https://www.googletagmanager.com/gtag/js?id=AW-300328857
- • https://app2.salesmanago.pl/dynamic/9d9c9b062c03b840/popups.js
- • https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.4.1/js/bootstrap.min.js
🎨 Stylesheets (5)
- • https://web4u.cz/static/bootstrap_cookies/css/bootstrap.css
- • https://web4u.cz/static/presentation2014/css/main.css?edbf82718ff82ac118e268bdafd18481e68d
- • https://web4u.cz/static/presentation2014/css/messages.css?edbf82718ff82ac118e268bdafd18481e68d
- • https://web4u.cz/static/presentation2014/css/loginbox.css?edbf82718ff82ac118e268bdafd18481e68d
- • https://web4u.cz/z_css/loadingProcess.css?
Inspected on November 16, 2025 at 17:43 UTC