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SECURITY SCORE
Certificate Information
Subject
CN=wiscmail.wisc.edu
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M02
Valid From
September 06, 2025
Valid Until
October 04, 2026
322 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
3D:F6:C4:69:09:B5:17:E6:10:CB:2D:48:74:AE:60:BA:D2:8D:90:8D:0A:BF:E0:37:27:89:42:14:7C:49:C3:BE
Alternative Names
Security Configuration
TLS Protocols
TLS 1.0
TLS 1.1
TLS 1.2
Forward Secrecy
Limited
(Check cipher configuration)
Warnings
- • TLS 1.3 is not supported (recommended)
- • TLS 1.1 is deprecated and should be disabled
- • TLS 1.0 is deprecated and should be disabled
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