A Karlsruhe, Germany hosting provider offering DNS zone management and an API alongside its server and domain products.

netcup GmbH is a German hosting company headquartered in Karlsruhe that includes DNS zone management as a core feature of its webhosting, VPS, and dedicated server plans. Customers manage records, delegate subdomains, and automate updates through a control panel and a documented REST API, which has a visible following of community-built dynamic-DNS clients.

It is not marketed as a fully standalone managed-DNS product in the way Route 53 is, but the DNS functionality is independently usable by anyone with a netcup account, not tied to a specific hosting purchase. The company has operated in Germany since the early 2000s.

Its API-driven DNS tooling is especially popular in self-hosting and homelab communities.