The HTTP 301
Moved Permanently
redirect status response code indicates that the resource requested has been definitively moved to the URL given by the {{HTTPHeader("Location")}} headers. A browser redirects to this page, and search engines update their links to the resource (In SEO-speak, it is said that the link-juice is sent to the new URL).
Even if the specification requires the method, and the body, not to be altered when the redirection is performed, not all user-agents align with it, and you can still find buggy software out there. It is therefore recommended to the 301
code only as a response for {{HTTPMethod("GET")}} or {{HTTPMethod("HEAD")}} methods and to use the {{HTTPStatus("308")}} Permanent Redirect
instead, as the method change is explicitly prohibited with this status.
Status
301 Moved Permanently
Specifications
Specification | Title |
---|---|
{{RFC("7231", "301 Redirect Permanently" , "6.4.2")}} | Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content |
Browser compatibility
The compatibility table in this page is generated from structured data. If you’d like to contribute to the data, please check out https://github.com/mdn/browser-compat-data/README.md and send us a pull request.
{{Compat}}
See also
- {{HTTPStatus("308")}}
Permanent Redirect
- {{HTTPStatus("302")}}
Found
, the temporary redirect