You probably had trouble accessing #Fosstodon for the last few hours. That's because we have (and still are) the target of a DDoS attack. Fosstodon was the target, but other Masto.Host customers were impacted because of it (sorry about that, folks!)
Unfortunately, we've had to take the decision to put Fosstodon behind #Cloudflare to mitigate the attacks. I don't like it either, but we need to do what we can to keep the lights on.
More details to follow...