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SECURITY SCORE
Certificate Information
Subject
C=US, ST=Wisconsin, O=University of Wisconsin-Madison, CN=vpn.wpreng.net
Issuer
C=US, O=Internet2, CN=InCommon RSA Server CA 2
Valid From
April 01, 2025
Valid Until
April 01, 2026
144 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA384-RSA
SHA-256 Fingerprint
1F:6C:B8:B7:A9:60:75:B0:3D:11:BC:53:72:88:C2:5A:58:F6:1C:5E:4F:EA:84:4F:B4:9C:D3:9B:7E:8C:2A:2D
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