Activitypub-proxy

About

activitypub-proxy is open-source software written specifically for the purpose of circumventing fediblocks. According to the software's Git repository (archive.org):

A simple proxy for ActivityPub that lets you circumvent blocks by masquerading as another domain name.

[...]

So for example, say you want to follow @kingu_platypus_gidora@octodon.social but the woke administrator has blocked you (or your instance blocked them wtf mastodon.social??), and you have a proxy at *.activitypub-proxy.cf: that would make @kingu_platypus_gidora@octodon-social.activitypub-proxy.cf which you can theoretically follow and fully interact with just like the real user.

This software is currently in use at activitypub-proxy.cf; we expect more such relay domains to pop up, given the apparent ease of installation.

There is a tool for detecting usage of this malware in development as of 2022-12-24.