That is the exact monthly cost of the server + the domain.
About
Hi i'm Drakon, i am maintaining a mastodon instance called "Dragon-Lair".
The server doesn't cost me much, but some members did asked about supporting the upkeep of the server, it is a private instance however. So for that reason this ko-fi was established.
I want to make clear again, there is no need to donate something, but if you do, it is of course greatly appreciated!