DNS Gurus
Cached · just now
90/100 SECURITY SCORE

Certificate Information

Subject
CN=imperva.com
Issuer
C=BE, O=GlobalSign nv-sa, CN=GlobalSign Atlas R3 DV TLS CA 2025 Q4
Valid From
January 17, 2026
Valid Until
July 16, 2026 164 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
F1:25:A8:BF:CD:E0:9A:1B:7D:FF:25:96:6B:A3:1D:43:C4:28:5E:E0:C1:14:99:C1:0C:79:C4:80:A0:F7:C8:33
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
Excellent
max-age=31536000; includeSubDomains; preload
Content-Security-Policy
Weak
frame-ancestors
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • Significantly strengthen CSP directives
  • • Consider adding Permissions-Policy to control browser features

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