Open
Cached
·
46m ago
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SECURITY SCORE
Certificate Information
Subject
C=DE, ST=Rheinland-Pfalz, L=Montabaur, O=1&1 Mail & Media GmbH, CN=*.netid.de
Issuer
C=DE, O=Deutsche Telekom Security GmbH, CN=Telekom Security ServerID OV Class 2 CA
Valid From
October 14, 2025
Valid Until
October 18, 2026
77 days
Public Key
RSA
3072 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
B6:B1:E3:9F:FA:FB:0F:87:34:BC:4C:2E:71:7C:27:FB:90:F6:5E:9D:25:6D:85:B2:00:74:5B:3D:22:ED:CD:E0
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
Present
max-age=63072000; includeSubdomains; preload
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Add Content-Security-Policy header to prevent XSS attacks
- • 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
Wildcard CAs
CAA Issues
- • CRITICAL: Current certificate issuer 'C=DE, O=Deutsche Telekom Security GmbH, CN=Telekom Security ServerID OV Class 2 CA' is NOT authorized by CAA records. Authorized CAs: Digicert.com, telesec.de, sectigo.com
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts