DNS Gurus
Cached · just now
86/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 1
AWS Certificate Manager logo AWS Certificate Manager

Certificate Information

Subject
CN=alb.web.illinois.edu
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M04
Valid From
July 30, 2026
Valid Until
February 12, 2027 194 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
BB:D3:88:D8:A1:5C:C2:18:E5:04:58:97:4C:36:1E:B0:B6:CF:5B:F3:9E:57:4D:73:67:92:83:FB:B4:DC:6B:48
Alternative Names
21 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
Missing
Not configured Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
X-Frame-Options
Good
SAMEORIGIN
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
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • 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