// http 3xx · redirection
HTTP 301 Moved Permanently
The resource has permanently moved to a new URL.
What HTTP 301 Moved Permanently means
301 Moved Permanently tells clients (and search engines) that the resource has permanently moved to the URL in the `Location` header, and they should use that URL from now on. Browsers and crawlers update their references and pass along SEO value.
Which category is it?
301 is a 3xx code — Redirection. 3xx means further action is needed to complete the request, usually because the resource lives at a different URL.
Common causes
- A URL or domain was permanently changed
- Migrating from HTTP to HTTPS or non-www to www
- Restructured site paths
How to fix it
- Point links at the new URL to skip the redirect hop
- Ensure the redirect target returns 200, not another redirect
Other redirection (3xx) codes
301 Moved Permanently 302 Found 303 See Other 304 Not Modified 307 Temporary Redirect 308 Permanent Redirect