Open Cached · just now
80/100 SECURITY SCORE

Certificate Information

Subject
CN=projectreactor.io
Issuer
C=US, O=Google Trust Services, CN=WE1
Valid From
September 24, 2025
Valid Until
December 23, 2025 32 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA256
SHA-256 Fingerprint
9E:3F:E9:D8:2C:70:8F:D4:0F:BC:20:00:19:0E:5C:A3:AE:F3:EE:46:8E:EC:18:C3:A7:9F:88:2A:C0:37:51:00
Alternative Names

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

HTTP Security Headers

Status
Strict-Transport-Security
Weak
max-age=0
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
  • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • 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
Wildcard CAs
Incident Reporting
Recommendations
  • Consider using critical flag (flags=128) for stricter CAA enforcement
  • You have authorized 6 CAs - consider limiting to only the CAs you actively use

Subject Alternative Names

2 domains