DNS Gurus
Cached · just now
83/100 SECURITY SCORE

Certificate Information

Subject
CN=imperva.com
Issuer
C=BE, O=GlobalSign nv-sa, CN=GlobalSign Atlas R3 DV TLS CA 2026 Q1
Valid From
January 22, 2026
Valid Until
July 21, 2026 167 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
37:D9:D6:75:29:65:3D:D8:12:DA:1E:35:B8:FB:35:9E:15:CE:8A:97:23:0A:62:5A:63:EA:08:7C:FF:1E:0D:E3
Alternative Names
44 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=31536000; includeSubDomains; preload
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • Add X-Content-Type-Options: nosniff
  • • 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
digicert.com www.digicert.com geotrust.com letsencrypt.org globalsign.com
Wildcard CAs
digicert.com www.digicert.com geotrust.com letsencrypt.org globalsign.com
Incident Reporting
Recommendations
  • • Consider using critical flag (flags=128) for stricter CAA enforcement
  • • You have authorized 5 CAs - consider limiting to only the CAs you actively use