How to Check Your Website for 308 Permanent RedirectsTo see if you have any 308 Permanent Redirects on your site, use Semrush’s Site Audit tool. Later, we’ll go over when you should use a 308 Permanent Redirect. 308 Permanent Redirect : Conveys a permanent resource relocation and advises preserving the original request method of POST or GET. 301 vs. 308 Permanent Redirects301 and 308 redirects are both permanent redirects with one distinction—whether the browser can change the request method. You should use 308 Permanent Redirects when you want to maintain the original HTTP request method (like POST or GET) throughout a permanent redirect.