Candidate direction
ENR trees over DNS-over-HTTPS
idea
DNS node lists (EIP-1459) publish signed ENR trees in ordinary DNS. Browsers can’t send UDP, but they can fetch DNS records over DNS-over-HTTPS.
An edge client resolves the tree, verifies the signatures, and obtains ENRs without touching the DHT. This sidesteps the UDP restriction entirely. The list is static between publishes, so it complements rather than replaces live discovery.
Addresses
- Edge clients can't participate in discv5
discv5 runs over UDP, and browsers can't send UDP. The discovery layer is unreachable from the platform most readers run on.