Enter any URL to scan its HTTP response headers for security issues. Get an instant grade (A+ to F) with detailed recommendations for each missing or misconfigured header.
HTTP Header Analyzer
Analyze HTTP headers for security issues with A+ to F grading.
CSP Evaluator
Analyze Content Security Policy for misconfigurations.
CORS Misconfiguration Scanner
Test URLs for CORS misconfigurations with exploit code.
DNS Record Lookup
Query DNS records with security insights for SPF/DMARC/DKIM.