Code 302

A temporary redirect: the resource is elsewhere for now, but this URL remains the canonical one.

Use it for genuinely temporary states — maintenance, an A/B test, a seasonal landing page.

A 302 left in place for months behaves like a permanent redirect that nobody documented.

It tells engines to keep indexing the original URL, which is wrong when the move is permanent.

Accidental 302s are one of the most common causes of a migration losing traffic.