ApertoDNS Protocol: A Modern Dynamic DNS Update Protocol

This document specifies the ApertoDNS Protocol, a modern RESTful protocol for dynamic DNS (DDNS) updates. It provides a secure, provider-agnostic alternative to legacy protocols, with native support for IPv4, IPv6, bulk updates, automatic IP detection, TXT record management for ACME DNS-01 challenges, and standardized authentication mechanisms. The protocol uses well-known URIs (RFC 8615), JSON payloads (RFC 8259), and bearer token authentication (RFC 6750) to enable interoperable dynamic DNS services across different providers.