ceskadigitalniknihovna.cz
HTML metadata
DNS records live
- NS
-
- ns.web4u.cz
- ns2.web4u.cz
- MX
-
- 10 ag1.cesnet.cz
- 20 ag2.cesnet.cz
- Verified for
-
Email authentication weak
- SPF
- not published
- DMARC
- not published
- DKIM
- no key found at common selectors
Certificate (current)
R13
Expires in 70 days
HTTP security headers
- present
-
- strict-transport-security
- findings
-
- missing Content Security Policy
- missing frame protection
- missing content type protection
- missing Referrer Policy
- missing Permissions Policy
Header values
- strict-transport-security
max-age=15724800; includeSubDomains
Linked from (2)
- knihovnaks.cz×1
- dnnt.cz×1