I run HydraDNS, an open-source DNS security gateway in Go. Last month I sat down to find out what one box could actually handle before I put it on anyone else's network. The plan had a rule I'd written for myself: every number we discover becomes either a sales claim or a fix ticket.
Source: [Dev.to](https://dev.to/lopster568/two-ceilings-taking-a-go-dns-server-from-500-to-9500-qps-2poj)