Multisite: Redirect a deleted site – Best practice?

You should be able to find lots of ‘301’ htaccess rules and examples here and via searching. But the basic is to redirect an ‘old’ folder to a ‘new’ folder. The ‘new’ folder can be any site or page on a site.

RewriteRule ^old/(.*)$ /new [L,R=301]

That will redirect www.example.com/old (any page) to www.example.com/new . And the ‘301’ says that it is permanent, so will eventually update and search results for the old page.

This site is great for testing htaccess rules: https://htaccess.madewithlove.com/