A 307 redirect, also known as a "temporary redirect", is a type of HTTP status code that indicates that a requested resource has been temporarily moved to another location. It is similar to the 302 redirect, which is also used for temporary redirects, but with one crucial difference: 307 redirects ensure that the request method used for the original request is also used for redirecting the request.

When a browser sends a request for a specific URL, the web server checks the status code of that URL. If the status code is 307, the browser sends a request to the new address specified in the redirect. However, unlike a 302 redirect, a 307 redirect retains the original request method, whether it is GET, POST, PUT, DELETE, etc. This is useful when forwarding a form or other method that should not be changed during forwarding.

A 307 redirect is also useful for search engines because it lets them know that the redirect is temporary and that the original URL will be available again in the future. This prevents search engines from indexing the new location and the original URL remains in the ranking.

It is recommended to use a 307 forwarding instead of a 302 forwarding if the forwarding is temporary. This ensures that the method used for the original request is also used for the forwarding of the request, which can avoid confusion for search engines and customers.

Overall, a 307 redirect is a useful tool for website owners and developers when a temporary redirect is needed but the request method must be maintained. It helps to maintain consistency for the user and preserve the original URL for search engines.