DNS Gurus
Cached · just now
91/100 SECURITY SCORE

Certificate Information

Subject
CN=durex.at
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
December 11, 2025
Valid Until
March 11, 2026 73 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
F3:1F:E6:9E:34:57:E1:86:CF:61:35:FF:E0:CE:69:A9:F9:01:D6:6E:BB:7C:3C:59:FA:1E:FA:8E:3C:20:79:CF
Alternative Names
41 domains

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=31556926
Content-Security-Policy
Basic
base-uri; default-src; script-src; +9 more
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Present
camera=(self), geolocation=(self), accelerometer=(self), gyroscope=(self), magnetometer=(self), microphone=(self)
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