The HyperText Transfer Protocol (HTTP) 308 Permanent Redirect redirect status response code indicates that the resource requested has been definitively moved to the URL given by the Location headers. A browser redirects to this page and search engines update their links to the resource (in 'SEO-speak', it is said that the 'link-juice' is sent to the new URL).
The request method and the body will not be altered, whereas 301 may incorrectly sometimes be changed to a GET method.
Note: Some Web applications may use the 308 Permanent Redirect in a non-standard way and for other purposes. For example, Google Drive uses a 308 Resume Incomplete response to indicate to the client when an incomplete upload stalled.[1]
308 Permanent Redirect
| Specification | Title |
|---|---|
| RFC 7538, section 3: 308 Permanent Redirect | The Hypertext Transfer Protocol Status Code 308 (Permanent Redirect) |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | Yes | Yes | Yes | Yes
|
Yes | Yes |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
301 Moved Permanently302 Found, the temporary redirect
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https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/308