Open
Cached
·
just now
79/100
SECURITY SCORE
Certificate Information
Subject
CN=wiscweb.wisc.edu
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M04
Valid From
October 02, 2025
Valid Until
October 30, 2026
350 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
D7:6A:6B:F2:BC:CF:8C:C5:30:61:56:4F:02:14:3F:B1:B0:CA:E2:02:48:1D:FD:07:85:ED:19:D9:B5:C5:B2:A4
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