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SECURITY SCORE
Certificate Information
Subject
CN=possy.jp
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M04
Valid From
April 24, 2025
Valid Until
May 24, 2026
193 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
BF:5A:18:20:2A:99:C2:69:FB:54:E6:C2:E2:BE:10:07:83:AE:7C:07:11:3C:BF:0D:43:D4:B6:C4:3B:6C:94:DA
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