DNS Gurus
Cached · just now
71/100 SECURITY SCORE

Certificate Information

Subject
C=US, ST=Illinois, O=University of Illinois, CN=www2.wcms.uillinois.edu
Issuer
C=US, O=Internet2, CN=InCommon RSA Server CA 2
Valid From
November 25, 2025
Valid Until
November 25, 2026 317 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
EB:79:48:EE:6C:F7:00:6C:E1:95:D8:3F:29:2B:FF:DB:BB:48:E4:60:0A:8E:D2:A8:F3:0B:F0:25:B1:F0:0F:89
Alternative Names
52 domains

Security Configuration

TLS Protocols
TLS 1.0 TLS 1.1 TLS 1.2
Forward Secrecy
Limited (Check cipher configuration)
Warnings
  • • TLS 1.3 is not supported (recommended)
  • • TLS 1.1 is deprecated and should be disabled
  • • TLS 1.0 is deprecated and should be disabled

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • 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
Not Authorized (Potential misconfiguration)
Authorized CAs
amazon.com comodoca.com amazonaws.com awstrust.com amazontrust.com
Wildcard CAs
comodoca.com
CAA Issues
  • • CRITICAL: Current certificate issuer 'C=US, O=Internet2, CN=InCommon RSA Server CA 2' is NOT authorized by CAA records. Authorized CAs: amazon.com, comodoca.com, amazonaws.com, awstrust.com, amazontrust.com
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
  • • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts