HTTP

HTTP Headers Viewer

See the full HTTP response headers of any URL or API.

  • status
  • redirects
  • response headers
Waiting to check...
curl -I
This request is sent from the Backserver server as a HEAD request and does not automatically follow redirects, so the target of every redirect stays visible.
ABOUT

View status code, redirects and response headers

Response headers decide caching, security policy and redirects. This tool requests a URL or API and shows the status code, the complete redirect chain and every response header (such as Cache-Control, Strict-Transport-Security and Content-Security-Policy). Useful for debugging redirect loops, CDN caching and security headers.

HOW TO

How to use it

  1. Enter the full URL including https://.
  2. Read the status code and the redirect chain.
  3. Review response headers for caching and security.
FAQ

Frequently asked questions

What is the difference between 301 and 302?
301 is a permanent redirect that browsers and search engines cache; 302 is temporary.
Which security headers matter most?
Strict-Transport-Security, Content-Security-Policy, X-Content-Type-Options and Referrer-Policy are the baseline.