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SECURITY SCORE
Certificate Information
Subject
CN=dmfiam.ch
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
September 03, 2025
Valid Until
December 02, 2025
15 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
99:65:25:C2:2A:12:9D:72:93:5B:92:8E:F4:72:21:B4:E4:C9:9D:25:93:B2:F3:A4:53:66:66:BC:FC:65:B4:29
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
Forward Secrecy
Limited
(Check cipher configuration)
Warnings
- • TLS 1.3 is not supported (recommended)
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