They allow users to log in with their standard AO3 account, access their dashboard, and read or post works just as they would on the primary site. Official Mirrors & Redirects: Official Proxy: archiveofourown.gay
For many users, is the premier destination for fanfiction. However, depending on where you are in the world or the state of the site’s servers, you might find yourself unable to access it. This is where an AO3 mirror comes into play.