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SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=stackup.sh
Issuer
C=US, O=Google Trust Services, CN=WE1
Valid From
April 26, 2026
Valid Until
July 25, 2026
78 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA256
SHA-256 Fingerprint
4D:2D:0E:FC:89:1A:7F:24:A1:25:B7:3C:F2:C1:FD:1C:DC:1F:35:50:B4:D1:E9:EF:DC:DC:8F:66:57:E7:09:2B
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
Configured
(Restricts certificate issuance)
Current Issuer
Authorized
(Matches CAA policy)
Authorized CAs
Wildcard 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