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What are HTTP Headers?
HTTP headers are metadata between client and server. They contain info about content type, caching, security, server software. Analysis helps with debugging and security auditing.
Security Headers
Key ones: HSTS, CSP, X-Frame-Options, X-Content-Type-Options. The inspector highlights these and warns about missing ones.
Headers and Proxies
X-Forwarded-For, Via reveal proxy usage. GProxy residential proxies do not add these headers. The inspector helps verify anonymity.