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SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=mail63.csoft.net
Issuer
C=US, O=Let's Encrypt, CN=YE1
Valid From
June 14, 2026
Valid Until
September 12, 2026
51 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
71:D5:08:45:B2:BC:0C:37:DC:78:32:9D:F5:40:E5:C8:35:19:14:DC:E6:94:94:05:25:DA:37:2F:0E:10:DF:1B
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
CAA Records (Certificate Authority Authorization)
CAA Records
Configured
(Restricts certificate issuance)
Current Issuer
Authorized
(Matches CAA policy)
Authorized CAs
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts
- • Consider adding 'issuewild' records to control wildcard certificate issuance