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SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=calcmd.com
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
April 25, 2026
Valid Until
July 24, 2026
31 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
0D:9A:77:2F:12:A6:8E:91:D5:6E:82:6C:03:93:A7:D0:92:AF:7F:0C:A6:16:3A:EC:96:0C:00:51:C1:47:AE:41
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
- • You have authorized 4 CAs - consider limiting to only the CAs you actively use
- • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts
- • Consider adding 'issuewild' records to control wildcard certificate issuance