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SECURITY SCORE
Certificate Information
Subject
CN=desec.org
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
November 25, 2025
Valid Until
February 23, 2026
40 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
1A:8C:A1:58:F6:87:34:F1:D2:39:47:CF:30:B6:9B:93:03:CF:67:3D:C2:4D:42:CC:ED:B1:26:F9:4B:15:31:57
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
Excellent
max-age=31536000; includeSubDomains; preload
Content-Security-Policy
Basic
default-src; frame-src; connect-src; +9 more
default-src 'self'; frame-src 'none'; connect-src 'self'; font-src 'self' data:; img-src 'self' data:; media-src data:; script-src 'self' 'unsafe-eval' 'sha256-MS6/3FCg4WjP9gwgaBGwLpRCY6fZBgwmhVCdrPrNf3E=' 'sha256-tQjf8gvb2ROOMapIxFvFAYBeUJ0v1HCbOcSmDNXGtDo=' 'sha256-VA8O2hAdooB288EpSTrGLl7z3QikbWU9wwoebO/QaYk=' 'sha256-+5XkZFazzJo8n0iOP4ti/cLCMUudTf//Mzkb7xNPXIc='; style-src 'self' 'unsafe-inline'; base-uri 'self'; frame-ancestors 'none'; block-all-mixed-content; form-action 'none';
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
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
- • 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 adding 'issuewild' records to control wildcard certificate issuance