Acck

Hello, this is Acck, a tool to easily check if a Mastodon account is moderated (silenced, aka “limited”, and-or suspended, aka “blocked”) by a Mastodon server (aka “instance”).

Since an account can be reported as moderated by a Mastodon server even when the server is moderating the whole account’s domain, Acck also tries to detect if this is the case, and tells about it.

To check if an account is moderated by the given server, Acck tries to use the server’s «/api/v1/accounts/lookup» API endpoint, which is public and was introduced in Mastodon v3.4.0; to check if the server is moderating the whole account’s domain, Acck tries to use the server’s «/api/v1/instance/domain_blocks» API endpoint, which is not always set to public by the server’s admins, and was introduced in Mastodon v4.0.0. If it can’t use one or both of these endpoints, it tells.

Acck does not use cookies or Javascript and does not store any data about you anywhere.

You can find Acck’s code here, and you can contact me on Mastodon here.