HTTP Error and Status Codes
Common HTML Error and Status Codes
301 Moved Permanently
Section titled “301 Moved Permanently”Search engines will update their cache and use the new returned URI for all future requests.
If you link to a page that returns this code, you should update your links. We periodically verify all links on our websites and update the external links. Conversely, if you maintain a site, provide a ‘permanent link’ or permlink, that users can link to.
302 Found
Section titled “302 Found”The equates to moved temporarily.
401 Unauthorized
Section titled “401 Unauthorized”Check your username and password is correct.