HTTP Header Checker
Fetch any URL and inspect its response status, the full redirect chain and every response header. Requested from Uptimeify's EU servers.
What watches these brands watches your clients too
This check works inside your AI agent, too.
You are running by hand what Claude, Cursor or ChatGPT could do for you directly. Uptimeify offers this and 19 more checks as an MCP server: SSL, DNS, email authentication and more, right in your workflow. No account, no API key, on EU infrastructure.
Frequently asked questions about HTTP Header Checker
It sends a request to the URL and shows the final HTTP status code, the chain of redirects it followed to get there, and all the response headers the server returned, things like content-type, cache-control, server, strict-transport-security and your security headers. It is like running curl -I but in your browser.
The request is made from Uptimeify's EU servers, and the URL you enter is used only to perform the check and is not stored. For safety the fetcher only allows http and https, refuses to connect to private or internal addresses, and re-checks every redirect, so it can't be abused to probe internal systems. As an EU-built, EU-hosted provider, we keep this off US infrastructure and clear of US Cloud Act exposure.
Headers and redirects are where caching, HTTPS and security policy quietly go wrong. Check them here, then let Uptimeify watch the URL around the clock from multiple EU locations and alert you within seconds if the status, redirect or response changes.
Ready to Stop Leaving Header Changes to Chance?
You check headers when you remember to. Uptimeify checks continuously that the site answers, redirects to HTTPS correctly and returns the status code you expect, from several EU nodes.