DNS Gurus
Cached · just now
88/100 SECURITY SCORE

Certificate Information

Subject
CN=*.rrfhuxhpqcxfdxj.directoryup.com
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
January 07, 2026
Valid Until
April 07, 2026 79 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
44:13:40:1D:8E:71:F6:48:9E:13:BD:27:1E:57:4E:7F:40:C9:95:28:96:6E:2C:9C:40:79:3D:C4:90:DC:98:8C
Alternative Names
3 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=63072000
Content-Security-Policy
Basic
script-src; object-src; base-uri; +9 more
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin
Permissions-Policy
Present
accelerometer=*,autoplay=*,camera=*,encrypted-media=*,fullscreen=*,geolocation=*,gyroscope=*,magnetometer=*,microphone=*,sync-xhr=*,usb=*,payment=*
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking

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