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SECURITY SCORE
Certificate Information
Subject
CN=centralnic-dns.com
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
September 17, 2025
Valid Until
December 16, 2025
38 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
43:A3:F0:72:B8:80:51:13:EA:0A:F0:C3:6F:AB:0C:07:9C:8B:DB:6C:A6:94:CB:BD:4C:1E:51:E2:1F:DB:68:82
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