SECURITY UTILITIES

Security Header Checker

Inspect web security headers and identify common missing protections.

Processed locally in your browser. Inputs are not uploaded or included in site analytics.

Paste headers copied from browser DevTools or curl -I https://your-site.example. Analysis is local; this tool does not fetch a URL or certify security.

HTTP response headers

Text limit: 100,000 characters. Processing stops after 15 seconds; complex inputs may need reducing. Review generated commands and repaired data before use.