This page describes the mast.levianetwork.dynu.net instance - wondering what Mastodon is? Check out joinmastodon.org instead! In essence, Mastodon is a decentralized, open source social network. This instance is run by @email@example.com and is just one part of the network. It is not focused on any particular niche interest.
Mastodon is a social network based on open web protocols and free, open-source software. It is decentralized like e-mail.