DNS Gurus
Cached · just now
91/100 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
December 29, 2025
Valid Until
June 27, 2026 138 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
D0:5A:32:BD:8E:CC:5E:23:25:DA:4F:9A:30:86:4E:27:E8:B7:95:77:DA:95:70:50:FE:CB:53:04:31:E5:53:5B
Alternative Names
7 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=31536000
Content-Security-Policy
Good
default-src; connect-src; font-src; +5 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
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Strengthen CSP by removing 'unsafe-eval'
  • • 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