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SECURITY SCORE
Certificate Information
Subject
CN=dns4.mxserver.ro
Issuer
C=US, O=Let's Encrypt, CN=R10
Valid From
August 20, 2025
Valid Until
November 18, 2025
5 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
6A:FC:A3:FA:78:24:3A:CC:E4:9B:87:8B:BA:26:99:B3:9C:21:8C:A1:2C:79:47:FE:A3:B5:5F:76:68:4D:B8:2C
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