After EveryDNS and EditDNS's outage, I have finally got my act together to have this redundant and free DNS running for some of my domains. I know both EveryDNS and EditDNS have 4 geographically separated servers, however during the event when the vendor is targeted for DDoS, I am still suffering downtime when their servers stuggle to stay alive. Therefore, instead of having your zone resiting on only one free DNS provider, you can get your domain hosted by both of them. Therefore just in case all servers of one provider get DDoS'ed, your domain can still stay visible on the net as the servers from the other provider are still answering requests.

Domain name resolution is a very important building block of the Internet today. It translates domain/host names into IP addresses, so your browser would know how to reach this page (okay, I know it is more complicated than that, but…)