Changed an address?
Check the first response’s status and Location before investigating the redirect.
HTTP header checker
See what your site returns,
beyond the page.
Caching, redirects, content type: your server says a lot before the page appears. Enter a URL and take a closer look at its response.
- HTTP status and organized headers
- Copy the result for your team
Free, no sign-up
Check your website’s response
Check results
GET request, first HTTPS response only. Redirects are not followed. Cookies and authentication headers are omitted; limited to 80 headers and 4,096 characters per value. Results may vary with the server, region, path and time. They do not represent every visitor.
What you can check
One simple check. Three good reasons to use it.
Content looking outdated?
Look at Cache-Control, Age and other returned headers to understand caching rules.
Reviewing your setup?
Share the headers with your website team. They provide a starting point for server configuration.
Your website has a next chapter.
Let’s give it a home.
If this check is part of a hosting move, explore Zovvi Cloud resources and plans for your website.
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A few things to know before you check
What are HTTP headers?
They are details accompanying a server response, including content type, caching rules and browser instructions. This tool displays response headers from a GET request.
Does the checker follow redirects?
No. It only displays the first HTTPS response, including Location when returned. To check the destination, enter its address.
Does a missing header mean my site is unsafe?
Not necessarily. Every header has a purpose and depends on context. This tool indicates presence; it does not perform an audit or assign a security grade.
Why might results differ from my browser?
The request comes from Zovvi’s server over IPv4, without your cookies or session. CDN, caching, region, path, method and time can change the response. Cookie and authentication headers are omitted.