DNS Gurus
Cached · just now
89/100 SECURITY SCORE

Certificate Information

Subject
CN=forms.sistasurgemedia.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
December 31, 2025
Valid Until
March 31, 2026 82 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
80:ED:D7:2D:92:D5:01:4B:42:77:91:13:9C:8A:3D:40:A6:C8:48:3A:1A:A4:28:8E:87:30:AB:CB:0E:65:CE:E7
Alternative Names
48 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
Excellent
max-age=64072000; includeSubDomains; preload
Content-Security-Policy
Basic
script-src; connect-src; frame-src
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • 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
Authorized (Matches CAA policy)
Authorized CAs
letsencrypt.org pki.goog
Recommendations
  • • Consider using critical flag (flags=128) for stricter CAA enforcement
  • • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts
  • • Consider adding 'issuewild' records to control wildcard certificate issuance