Google historically stated that a 301 domain redirect signals a permanent move toward indexing the new domain, whereas a 302 indicates a temporary move and continued indexing of the old domain.

Google (Webmaster Central Blog, now Search Central Blog) · primary source · retrieved 2026-08-22

“302 ... temporary ... continue to index the old domain. A 301 ... permanent ... start indexing the new domain” — Second paragraph

Google Search Central · primary source · retrieved 2026-08-22

“they should keep the original URL in their index rather than replacing it with the target” — Google Search Central lines 153-155

Google Search Central · primary source · retrieved 2026-08-22

“Permanent redirects: Show the new redirect target in search results.” — Google Search Central lines 135-165

SEO.Domains · retrieved 2026-08-22

“a 301 is the right signal for a permanent move ... while a 302 keeps the original indexed” — Google's documented position section

Search Engine Land · retrieved 2026-08-22

“When used, Google will update the index to reflect your new URL.” — Search Engine Land lines 413-424

Search Engine Roundtable · retrieved 2026-08-22

“pretty much the same advice and structure of the blog post from a decade a ago” — Search Engine Roundtable lines 61-75

Ahrefs · retrieved 2026-08-22

“302 redirects tell Google that a page has moved temporarily.” — Ahrefs lines 103-112