BOLT 10 describes a node discovery mechanism based on DNS.

The query semantics include a realm byte that is 0 by default (Bitcoin). What is the realm byte for testnet and signet?

This question was originally asked by Sergei Tikhomirov in the comments of this question.

1 Answer 1


There is currently no realm byte defined for testnet and signet.

At least lseed.bitcoinstats.com and lseed.darosior.ninja don't support testnet nor signet.

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