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SECURITY SCORE
Certificate Information
Subject
CN=*.lansco.de
Issuer
C=PL, O=Asseco Data Systems S.A., CN=Certum DV TLS G2 R39 CA
Valid From
October 22, 2025
Valid Until
October 22, 2026
263 days
Public Key
RSA
4096 bit
Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
23:49:9B:64:D7:D2:C6:07:13:D4:31:C5:87:FC:A1:D8:10:FB:ED:4C:52:01:F8:28:D7:47:60:5C:BC:4E:8A:1A
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=31536000;
Content-Security-Policy
Basic
script-src
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin
Permissions-Policy
Present
geolocation=(), midi=(), camera=(), usb=(), magnetometer=(), accelerometer=(), vr=(), speaker=(), ambient-light-sensor=(), gyroscope=(), microphone=()
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
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