I am about to replace a WP site at a DH-hosted domain with a new WP site (with a fresh database) from a subdomain of the original domain (also currently hosted by DH, of course). In other words, I want to take the new site at test.example.com and put it at example.com, replacing the old WP site at example.com.
Any suggestions for how to do this with the least downtime at example.com?
Example.com and test.example.com are on different SFTP users, and have separate MySQL databases. The old site may have been compromised at some point, so I plan to delete the old SFTP user and database after the replacement is complete.