DNS Gurus
Open Cached · just now
80/100 SECURITY SCORE

Certificate Information

Subject
UNKNOWN={:asn1_OPENTYPE, <<19, 20, 80, 114, 105, 118, 97, 116, 101, 32, 79, 114, 103, 97, 110, 105, 122, 97, 116, 105, 111, 110>>}, UNKNOWN={:asn1_OPENTYPE, <<19, 2, 80, 76>>}, UNKNOWN={:asn1_OPENTYPE, <<12, 18, 122, 97, 99, 104, 111, 100, 110, 105, 111, 112, 111, 109, 111, 114, 115, 107, 105, 101>>}, UNKNOWN={:asn1_OPENTYPE, "\f\bSzczecin"}, UNKNOWN=0000431335, C=PL, ST=zachodniopomorskie, L=Szczecin, UNKNOWN={:asn1_OPENTYPE, <<19, 6, 55, 48, 45, 54, 53, 51>>}, UNKNOWN={:asn1_OPENTYPE, "\f\nZbożowa 4"}, O=home.pl S.A., CN=home.pl
Issuer
C=PL, O=Unizeto Technologies S.A., OU=Certum Certification Authority, CN=Certum Extended Validation CA SHA2
Valid From
September 02, 2025
Valid Until
October 02, 2026 325 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
8A:F6:8E:43:C1:52:35:28:12:7B:02:A8:15:EE:85:79:29:BC:92:B5:CA:5F:F4:76:B3:FD:99:AE:B7:A6:D9:FD
Alternative Names
16 domains

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • Consider adding Permissions-Policy to control browser features

CAA Records (Certificate Authority Authorization)

CAA Records
Configured (Restricts certificate issuance)
Current Issuer
Not Authorized (Potential misconfiguration)
Authorized CAs
sectigo.com amazon.com certum.pl digicert.com letsencrypt.org
Wildcard CAs
certum.pl
CAA Issues
  • • CRITICAL: Current certificate issuer 'C=PL, O=Unizeto Technologies S.A., OU=Certum Certification Authority, CN=Certum Extended Validation CA SHA2' is NOT authorized by CAA records. Authorized CAs: sectigo.com, amazon.com, certum.pl, digicert.com, letsencrypt.org
Recommendations
  • • Consider using critical flag (flags=128) for stricter CAA enforcement
  • • You have authorized 5 CAs - consider limiting to only the CAs you actively use
  • • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts