DNS Gurus
Cached · just now
95/100 SECURITY SCORE

Certificate Information

Subject
CN=cloud.tenable.com
Issuer
C=US, O=Google Trust Services, CN=WE1
Valid From
December 14, 2025
Valid Until
March 14, 2026 71 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA256
SHA-256 Fingerprint
8C:81:51:A9:3D:13:2C:E2:51:A1:71:94:0A:7A:B5:24:A5:5D:52:76:5A:1D:3E:B2:08:ED:50:BB:A1:A4:F2:ED
Alternative Names
26 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
Good
max-age=63072000; includeSubDomains
Content-Security-Policy
Good
default-src; object-src; frame-ancestors; +13 more
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • Consider adding 'preload' to HSTS for maximum security
  • • Strengthen CSP by removing 'unsafe-eval'
  • • Consider adding Permissions-Policy to control browser features

CAA Records (Certificate Authority Authorization)

CAA Records
Configured (Restricts certificate issuance)
Current Issuer
Authorized (Matches CAA policy)
Authorized CAs
amazon.com digicert.com pki.goog ; cansignhttpexchanges=yes
Wildcard CAs
amazon.com digicert.com pki.goog ; cansignhttpexchanges=yes
Recommendations
  • • Consider using critical flag (flags=128) for stricter CAA enforcement
  • • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts