HTTP Header Checker
Enter any URL to see its HTTP status code, full response headers, and the complete redirect chain — read live from the server, exactly as a browser would receive them.
What is an HTTP header checker?
Every time a web server answers a request it returns a status code (like 200, 301, or 404) and a set of response headers — metadata describing the page, the server, caching rules, security policies, cookies, and more. This tool sends a real request to the URL you enter and shows you exactly what came back, including each hop of any redirect chain.
It's useful for checking redirects (HTTP → HTTPS, www canonicalization), debugging caching and CDN behaviour, confirming security headers likeStrict-Transport-Securityare present, or simply seeing which server software a site runs.