- Using the wrong redirect type is a common, invisible SEO mistake.
- Here is the real difference between 301 and 302 redirects, and when to use each.
Redirects send visitors and search engines from one URL to another automatically — essential when moving domains, restructuring a site, or consolidating duplicate content. The type of redirect used carries real, lasting SEO consequences that many site owners overlook.
301 Redirect: Permanent
Tells browsers and search engines the content has moved permanently to a new location. Search engines transfer the accumulated ranking value ("link equity") from the old URL to the new one, and update their index to reflect the new address going forward.
302 Redirect: Temporary
Signals a temporary move — the old URL is expected to return to use eventually. Search engines generally do not transfer ranking value to the new URL and continue indexing the original address as the canonical one.
Why Choosing the Wrong Type Matters
Using a 302 for what is actually a permanent change (a domain migration, a merged website) means search engines withhold the accumulated SEO value from years of the old domain's history — a genuinely costly, entirely avoidable mistake that shows up as inexplicable ranking loss after a migration.
Common Use Cases
| Situation | Correct redirect |
|---|---|
| Permanently moving to a new domain | 301 |
| www to non-www (or reverse) canonicalization | 301 |
| Site under temporary maintenance | 302 |
| A/B testing an alternate page temporarily | 302 |
How to Verify the Redirect Type Actually in Use
Visually, a 301 and a 302 redirect look identical to a visitor — both simply land on the new page. The only reliable way to confirm which type is actually configured is to check the HTTP response headers directly, using a browser's developer tools (Network tab, checking the status code of the redirected request) or a free online redirect-checker tool. This matters because many CMS plugins and quick .htaccess snippets copied from forums default to a 302 without the site owner realizing it, silently costing SEO value on what was intended as a permanent move.
How to Set Up Redirects Correctly
- Use your CMS's built-in redirect tool (many WordPress SEO plugins include one) for simplicity.
- Or configure redirects directly via .htaccess for server-level control.
- Always verify the redirect type using a browser header-checking tool, not just visual confirmation that it works.
- Map old URLs to their most relevant new equivalent — a blanket redirect to the homepage loses more SEO value than a properly mapped one-to-one redirect.
Frequently Asked Questions
How long does it take for a 301 redirect to pass full SEO value?
Search engines typically recognize and begin transferring value within weeks, though full re-indexing and ranking stabilization can take a few months for a large site.
Can too many redirects slow down my site?
Redirect chains (A to B to C) add real, if small, delay — always redirect directly to the final destination rather than through intermediate steps.
Should a 302 ever be converted to a 301 later?
Yes — if what was originally a temporary redirect turns out to be permanent (a "temporary" maintenance page that never reverts, for example), updating it to a 301 once that becomes clear recovers the SEO value a lingering 302 would otherwise keep withholding.
Planning a domain migration? See our domain services or ask our team for migration help.
