lightmy.dayINSTANT ANSWERS

Redirection

HTTP 301: Moved Permanently

HTTP 301 means the resource moved permanently.

Meaning

Clients and search engines should use the new URL for future requests.

Common causes

Permanent URL changes, canonical domain redirects, and migration rules often use 301.

What to check

Update links, canonical URLs, and redirect rules so they point to the final destination.

Example response

HTTP/1.1 301 Moved Permanently

References

Registry: IANA HTTP Status Code Registry
Spec: RFC 9110 §15.4.2
Guide: MDN 301 Moved Permanently

Related HTTP status codes

Nearby codes often answer the next debugging question.

302 FoundHTTP 302 means the resource is temporarily found at another URL.307 Temporary RedirectHTTP 307 means the request should temporarily use another URL without changing method.308 Permanent RedirectHTTP 308 means the request should permanently use another URL without changing method.