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SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=spamwall.enter-system.com
Issuer
C=US, O=Let's Encrypt, CN=YR1
Valid From
August 17, 2026
Valid Until
November 15, 2026
78 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
5F:C5:A6:8F:98:5D:64:56:59:2D:9D:43:0C:4A:43:76:67:5A:E8:43:28:EC:62:F0:BC:09:5D:9B:42:83:41:C4
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