The Registry tab shows the contract managing your name.
Most names use the ENS default registry.
The Registry page shows:
Contract address – The registry handling this name
Factory contract – The contract used to deploy the registry
Owner address – The registry owner
Protocol version – The registry track (for example, Track 2)
Deploy Registry
In the top right, there's a Deploy Registry button visible to the name owner. You'll need to do this in order to create subnames. You can use the official ENS Registry Factory, or deploy your own custom registry.
Advanced functionality - Custom registry
Click Deploy Registry if you need a custom setup — for example, if you're building on top of ENS and need different rules for how subnames work.