Some servers have ECC. If you get a cheap one (like a Hetzner auction server), it’s less likely to have ECC. ECC protects against bitflips, but it won’t help if the RAM is starting to die. ECC isn’t magic - it just has an extra 8 bits of parity data per 64 bits of data. It still uses the same type of RAM chips.




I’m running mine on a ~$33/year VPS at GreenCloudVPS. It’s a small instance (just me) but it federates with all the major instances which means it still does a bunch of work (since it has to handle incoming posts and comments from federated servers). It’s a decently powerful VPS with an AMD EPYC Milan CPU, 10GB RAM, and 100GB NVMe storage.
For a medium-sized instance, I imagine you could get pretty far with a single <$100/month dedicated server from Hetzner or a similar provider.