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SECURITY SCORE
Certificate Information
Subject
C=US, ST=California, O=University of California, San Diego, CN=ucsd.edu
Issuer
C=US, O=Internet2, CN=InCommon RSA Server CA 2
Valid From
January 16, 2025
Valid Until
January 16, 2026
66 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA384-RSA
SHA-256 Fingerprint
AE:97:61:DD:96:9E:CC:9C:6B:15:26:CF:EE:3A:AE:1D:7B:25:A5:C3:B0:98:9C:65:B5:AD:B3:E6:E3:F1:BE:A1
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