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SECURITY SCORE
Certificate Information
Subject
CN=wproxy.fel.cvut.cz
Issuer
CN=wproxy.fel.cvut.cz
Valid From
February 24, 2023
Valid Until
January 31, 2123
35254 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
F5:F4:33:15:45:8A:55:B5:53:B0:61:3A:D0:D2:E2:16:89:83:FD:62:16:25:68:AC:5F:F7:8A:EE:59:76:F8:7C
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
CAA Records (Certificate Authority Authorization)
CAA Records
Configured
(Restricts certificate issuance)
Current Issuer
Not Authorized
(Potential misconfiguration)
Authorized CAs
CAA Issues
- • CRITICAL: Current certificate issuer 'CN=wproxy.fel.cvut.cz' is NOT authorized by CAA records. Authorized CAs: letsencrypt.org
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts
- • Consider adding 'issuewild' records to control wildcard certificate issuance