Does en have a DNS system?

Because the ENS was developed for Ethereum smart contracts – and is native to the Ethereum ecosystem – it doesn't suffer from security issues faced by a DNS system. DNS records of domains and names are stored on a centralized server. That means they are prone to hacks.

What are en names & how do they work?

ENS names are programmable, and stored on the Ethereum blockchain as ERC-721 NFT tokens and in the future as ERC-1155 NFT standard tokens. It works similarly to DNS, in that ENS names resolve long random number and letter combinations into human-readable labels.

What is the en registry?

The ENS registry consists of a single smart contract that maintains a list of all domains and subdomains available through the ENS service. It also stores three crucial pieces of information regarding each domain: The owner of the domain, which may be either an external account or a smart contract.