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SECURITY SCORE
Certificate Information
Subject
CN=*.idosell.com
Issuer
C=PL, O=Asseco Data Systems S.A., CN=Certum DV TLS G2 R39 CA
Valid From
November 13, 2025
Valid Until
November 13, 2026
346 days
Public Key
RSA
4096 bit
Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
50:06:0D:14:D5:1F:4E:1D:52:7C:65:2D:C7:A0:6F:20:F9:EA:F5:5C:54:88:AD:72:E6:3C:05:32:DD:0B:83:B7
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
Content-Security-Policy
Basic
default-src; script-src
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)
Wildcard CAs
CAA Issues
- • CRITICAL: Current certificate issuer 'C=PL, O=Asseco Data Systems S.A., CN=Certum DV TLS G2 R39 CA' is NOT authorized by CAA records. Authorized CAs: pki.goog, certum.pl
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts