HTTP Headers Checker

Fetch response headers for a URL using HEAD requests.

HTTP Headers Checker fetches response headers from a URL so you can inspect caching, security, and content metadata quickly. It is useful for debugging CDN behavior, validating redirects, and checking headers like `Cache-Control`, `Content-Type`, and security policies. This gives you a fast snapshot of what clients actually receive from a target endpoint. Use it during deploy verification or incident triage when behavior differs across environments.