301 vs 302 Redirect: Which Redirect to Use and When?

HTTP Redirects and SEO: Why Choosing the Right Redirect is Vital

Using the correct HTTP redirect code when you change, move, or restructure the URLs on your website can mean the difference between maintaining years of organic ranking power and starting from scratch. In Google's John Mueller's own words: "Using the wrong type of redirect can result in loss of link equity."

What is 301 Redirect?

A 301 (Moved Permanently) redirect sends a "This URL has been moved permanently, now use the new address" message to Google and other search engines. The most important feature is that a large percentage (90-99%) of the link equity carried by the old URL is transferred to the new URL.

Situations When 301 Should Be Used

• Domain change: in transitions from old-site.com → new-site.com.
• URL structure change: In permanent URL restructurings such as /products/123 → /categories/product-name.
• HTTP → HTTPS migration: Permanent redirection of all HTTP URLs to their HTTPS counterparts.
• www → non-www merging: Combining domain name versions into a single format.
• Page merge: Consolidating multiple low-performing pages into a single powerful page.

What is 302 Redirect?

A 302 (Found / Temporary Redirect) redirect signals to Google that "This URL has been temporarily moved, but the original URL will be back soon." Link power transfer is not guaranteed; Google continues to keep the original URL in its index.

Situations Where 302 Should Be Used

• A/B testing: Use temporary redirection when testing page variations.
• Maintenance mode: Temporarily redirecting to a different page during site maintenance.
• Geographic redirection: Temporary redirection to different language/region pages depending on the user's location.
• Temporary promotion pages\n\n:Redirects to short-term campaign pages.

307 and 308 Redirect: Redirects of the Modern HTTP/2 World

With the transition from HTTP/1.1 to HTTP/2, two new redirect codes came:

• 307 (Temporary Redirect): Modern equivalent of 302; It protects the HTTP method (POST, GET).
• 308 (Permanent Redirect): The modern equivalent of 301; It provides permanent redirection by preserving the HTTP method.

From an SEO perspective, Google treats 307 the same as 302 and 308 the same as 301.

Redirect Chain Error and Solution

A redirect chain is multiple redirects in a row, such as A → B → C → D. This situation causes both crawl budget waste and connection power loss:

• Google usually follows a chain of maximum 5 steps. Longer chains will stop scanning.
• With each step, link equity melts. In a 3-step chain, the original strength drops significantly.
• Solution: Reduce all chains directly to a single step in the form source → end destination (A → D).

Frequently Asked Questions

Is there a loss of link juice (link strength) in a 301 redirect?

Google explains that link strength loss in 301 redirects has been "almost zero" since 2016. However, cumulative loss still exists in long redirect chains.

I accidentally used 301 instead of 302, what happens?

Google removes the original URL from the index and indexes the new URL. If the situation is truly temporary, immediately change it to 302 and request re-indexing through Google Search Console.

Is meta refresh redirect safe for SEO?

No. Meta refresh redirect (HTML-based redirect) is slow, disrupts user experience, and is not considered as reliable by Google as server-side redirects. Always prefer 301/302 at HTTP level.

Use our Redirect Checker tool for free to detect redirect chains on your site!