Right now, DigitalOcean uses Google Public DNS resolvers 188.8.131.52 and 184.108.40.206. While this is great for general purpose DNS resolution, their rate limiting makes it extremely difficult for us to use Digital Ocean to run our software. It would be great if Digital Ocean could provide DNS resolvers to its customers that do not impose significant rate limiting themselves and are not backed by upstream DNS servers that impose rate limiting as well.
We operate the largest Minecraft server list, Minestatus. We built custom software that queries Minecraft servers for statistics (players online, MOTD, etc.) and in order to do this, the address of the servers must be resolved. DNS resolution rate limiting is the largest hurdle for us, as we must update over 34,000 servers in (hopefully) 10 minutes. We could get around the problem by using more droplets and slow down the query rate of each individual server, but that isn't very cost effective for us.