HTTP Headers

Inspect a website's HTTP response headers and status code. Review server, content, caching and security header values with My Secure Labs.

How to use HTTP Headers

Enter a public website hostname and run the response-header lookup after verification. Supports public IPv4 and native IPv6 addresses. For a domain, choose Auto IP, IPv4 or IPv6; Auto prefers IPv4 and uses IPv6 for IPv6-only domains. IPv6 connections require IPv6 connectivity at the test location.

Understanding the results

Inspect content, caching, server and security metadata returned for the request. Headers can vary by path, request method, cache state and proxy. This result does not represent every resource on the website.

Why do response headers change between checks?

Caches, reverse proxies and application behavior can produce different headers. Compare the same target and IP version, and review the returned status before interpreting the header values.