DNS Gurus
Open Cached · just now
78/100 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 1.0 TLS 1.1 TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)
Warnings
  • • TLS 1.1 is deprecated and should be disabled
  • • TLS 1.0 is deprecated and should be disabled

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
Missing
Not configured
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 X-Content-Type-Options: nosniff
  • • 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
Not Configured (Any CA can issue certificates)
CAA Issues
  • • No CAA records configured - any CA can issue certificates
Recommendations
  • • Implement CAA records to restrict which CAs can issue certificates for your domain
  • • This adds an extra layer of security against unauthorized certificate issuance
  • • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
  • • Consider adding 'iodef' record to receive security incident reports