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SECURITY SCORE
Certificate Information
Subject
CN=kinderwelt-in-graubuenden.ch
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
October 24, 2025
Valid Until
January 22, 2026
49 days
Public Key
RSA
4096 bit
Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
FC:54:F7:3A:B3:0D:4B:5F:0F:70:C7:F6:63:96:72:47:20:F8:D3:A6:0E:C6:19:24:75:01:EA:B3:09:6B:A1:2D
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
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
no-referrer-when-downgrade, strict-origin-when-cross-origin
Permissions-Policy
Present
interest-cohort=()
Recommendations
- • Add Strict-Transport-Security header with max-age of at least 1 year
- • Add Content-Security-Policy header to prevent XSS attacks
CAA Records (Certificate Authority Authorization)
CAA Records
Not Configured
(Any CA can issue certificates)
CAA Issues
- • No CAA records configured - any CA can issue certificates
Recommendations
- • Implement CAA records to restrict which CAs can issue certificates for your domain
- • This adds an extra layer of security against unauthorized certificate issuance
- • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
- • Consider adding 'iodef' record to receive security incident reports