DNS + ENS Use Case Examples
The following are a few examples DNS domain integrations made possible by the ENS protocol:
Coinbase Wallet ENS Integration (cb.id)

Coinbase has integrated the ENS protocol to issue cb.id names to their user base. For detailed information about this use case, see: DNS offchain Subname Issuance - Coinbase Wallet (cb.id)
Mirror DNS app to an ENS dApp - ENS App Manager (app.ens.domains)

The main registration and manager app for ENS names is available as a decentralized app using IPFS content. For detailed information about this use case, see: Mirror DNS app to an ENS dApp - ENS App Manager (app.ens.domains)
Offchain ENS subname registrar example - offchaindemo.eth

ENS Offchain Registrar Demo by Greg Skril offchaindemo.eth an offchain subname registrar for ENS names.