Documentation

Everything you need to integrate SecondDNS with your infrastructure.

API Reference

Authenticate, manage zones, and query health status programmatically.

Step-by-step guides for setting up secondary DNS, zone transfers, and DNS redundancy.

DNS health checks, email alerts, and integrations with Nagios, Zabbix, and other monitoring systems.

Dual license model for client-side software — GPLv3 for open source use, commercial license for proprietary products.