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SECURITY SCORE
Detected Technologies
Certificate Information
Subject
C=US, ST=WA, L=Redmond, O=Microsoft Corporation, CN=cdn.onenote.net
Issuer
C=US, O=Microsoft Corporation, CN=Microsoft TLS G2 ECC CA OCSP 02
Valid From
February 06, 2026
Valid Until
February 01, 2027
303 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
82:4B:94:1D:47:F9:32:60:D2:90:13:23:56:90:A9:CA:2E:57:33:28:45:BC:66:68:40:B7:FC:C4:EA:CF:9F:63
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=31536000; includeSubDomains
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Consider adding 'preload' to HSTS for maximum security
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
- • Add X-Content-Type-Options: nosniff
- • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
- • Consider adding Permissions-Policy to control browser features
CAA Records (Certificate Authority Authorization)
CAA Records
Configured
(Restricts certificate issuance)
Current Issuer
Not Authorized
(Potential misconfiguration)
Authorized CAs
CAA Issues
- • CRITICAL: Current certificate issuer 'C=US, O=Microsoft Corporation, CN=Microsoft TLS G2 ECC CA OCSP 02' is NOT authorized by CAA records. Authorized CAs: globalsign.com, microsoft.com, digicert.com
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