Open
Cached
·
just now
90/100
SECURITY SCORE
Certificate Information
Subject
CN=*.mafra.cz
Issuer
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV E36
Valid From
July 30, 2025
Valid Until
August 24, 2026
277 days
Public Key
ECDSA
384 bit
(P-384)
Strong
Signature Algorithm
ECDSA-SHA256
SHA-256 Fingerprint
1C:73:72:54:B7:D6:11:4D:C0:BD:1E:BC:4E:19:62:0A:B5:1A:DC:DB:CE:61:7C:97:DC:76:60:E9:6A:E8:CC:F2
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=15552000
Content-Security-Policy
Basic
upgrade-insecure-requests; default-src; child-src; +3 more
upgrade-insecure-requests; default-src 'self' https: data: blob: wss: 'unsafe-inline' 'unsafe-eval'; child-src https: data: blob:; object-src https:; form-action https:; report-uri https://servix.idnes.cz/log/csp-report.aspx?w=mafra&d=2025-11-20
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer-when-downgrade
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • 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
Not Authorized
(Potential misconfiguration)
Incident Reporting
mailto:[email protected]
CAA Issues
- • CRITICAL: Current certificate issuer 'C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV E36' is NOT authorized by CAA records. Authorized CAs:
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement