DNS key-value store
A public interface for storing and retrieving values from a DNS domain.
The service shows a literal key-value model: form a name for the key, then recover the value from DNS. It is compact and intuitive enough to demonstrate the pattern to anyone with a resolver.
Do not place confidential information in public DNS. Caching and replication are features here, not privacy controls.
Primary source: https://dnskv.com/