HTTP Header Lookup Tool
Fetch HTTP headers from a URL. Supports following redirects as well.
Follow redirects
- Safe
- The results are not stored or published anywhere.
Notes
Header fields
Displayed sorted in ascending order.
Redirects
To display redirect destinations for the input URL, enable 'Follow redirects'.
HTTP status codes
A list of common status codes
Success
| 200 | Indicates that the request succeeded. |
|---|---|
| 201 | Indicates that the request succeeded and a new resource was created. |
| 204 | Indicates that the request succeeded but there is no content to return. |
Redirect
| 301 | Indicates that the URL has been permanently moved. |
|---|---|
| 302 | Indicates that the URL has been temporarily moved. |
Client error
| 400 | Indicates a bad request and it cannot be accepted. |
|---|---|
| 401 | Indicates authentication failed. |
| 403 | Indicates access is forbidden and the server refuses the request. |
| 404 | Indicates the requested resource does not exist. |
Server error
| 500 | Indicates an internal server error occurred. |
|---|---|
| 502 | Indicates the gateway/proxy could not reach the upstream server. |
| 503 | Indicates the server is unavailable and cannot process the request. |