In plain English
The difference from a 301 is entirely about intent. A 302 says keep indexing the old address because this is not the final arrangement.
That makes it correct for genuinely temporary situations, and quietly damaging when used for permanent moves, because the search engine keeps the old URL and the new one never establishes itself.
What to know
Why it matters
The 302 is one of the most common silent errors in a migration, because it works perfectly for users and wrongly for search engines. Nothing looks broken while rankings fail to transfer.
Common mistakes
FAQs
Does a 302 pass authority?
Some, but the old URL is kept, so the new one does not take over.
When is a 302 correct?
Maintenance, testing, and genuinely temporary diversions.
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