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SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=zhongmay.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
May 27, 2026
Valid Until
August 25, 2026
85 days
Public Key
RSA
4096 bit
Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
54:9B:5B:08:8F:10:F9:A2:B2:E7:23:60:57:7E:F2:77:4E:F3:7E:81:9A:D4:61:BF:6A:62:97:30:63:64:65:8E
Alternative Names
Security Configuration
TLS Protocols
TLS 1.0
TLS 1.1
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
Warnings
- • TLS 1.1 is deprecated and should be disabled
- • TLS 1.0 is deprecated and should be disabled
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