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SECURITY SCORE
Certificate Information
Subject
CN=documentfoundation.org
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
October 25, 2025
Valid Until
January 23, 2026
78 days
Public Key
RSA
3072 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
D4:96:14:25:7F:19:A1:E7:C4:1C:68:7A:ED:24:BB:CA:86:70:CD:78:FA:3E:6E:1B:89:AC:B2:7B:22:6E:33:24
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
HTTP Security Headers
Status
Strict-Transport-Security
Good
max-age=31557600; includeSubDomains
Content-Security-Policy
Strong
default-src; connect-src; font-src; +6 more
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
- • Consider adding 'preload' to HSTS for maximum security
- • Consider adding Permissions-Policy to control browser features
CAA Records (Certificate Authority Authorization)
CAA Records
Configured
(Restricts certificate issuance)
Current Issuer
Authorized
(Matches CAA policy)
Authorized CAs
Incident Reporting
mailto:[email protected]
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • Consider adding 'issuewild' records to control wildcard certificate issuance