acme-dns Open-Source ACME Challenge DNS

Explore this developer service’s free allowance, critical restrictions and official documentation before deploying.

INCLUDED FREE ALLOWANCE

MIT-licensed self-hosted DNS server and HTTPS API for automated ACME DNS-01 TXT challenges; supports SQLite or PostgreSQL backends.

Plan details

Plan: Ongoing free allowance
Deployment model: Self-hosted
Credit card: Not required
Commercial use: Allowed
Added to directory (UTC): 2026-10-29
Last checked: 2026-10-29

Important restrictions

Requires your own DNS-capable server, port 53, domain NS/CNAME delegation and HTTPS API security; hosting, domains and any external CA/service costs are not included. Not a general managed DNS free plan.

View official documentation

Independent community listing, not affiliated with the provider. Always check the latest billing policy and quotas before enabling paid usage.