You can now host DNS domains on Ethereum’s blockchain through ENS, which is short for Ethereum Name Service, a distributed, extensible domain naming system that relies on Ethereum’s blockchain. This is possible via adjusting the domain name server settings to point to gateway DNS servers, which resolve lookups through checking an ENS registry that points to resolvers including the zone data for the domain in question.
Throughout this tutorial, I will present you with a simple guide to help you host your DNS domain on the blockchain...
https://www.deepdotweb.com/2017/09/07/tutorial-host-dns-website-domain-ethereums-blockchain/