79/100 SECURITY SCORE

Certificate Information

Subject
CN=stunnel-server
Issuer
CN=stunnel-server
Valid From
February 14, 2023
Valid Until
February 11, 2033 2628 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
8F:61:0B:3E:1E:DF:35:E3:A2:D5:6C:CA:13:A3:0B:1B:73:87:2B:30:43:07:9A:0B:A2:4A:3A:B2:D7:8F:7A:71

Security Configuration

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

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