Cloud DNS

IONOS Cloud DNS lets you publish Domain Name System (DNS) primary zones of your domains and subdomains on public name servers.

Cloud DNS is structured into two primary categories: Public Zones and Reverse DNS.

Public Zones are further classified into Primary Zones and Secondary Zones, based on their role and configuration within the DNS infrastructure. If you manage a primary zone outside the IONOS Cloud infrastructure—on a self-hosted BIND server or another provider—you can now set up a secondary zone within IONOS Cloud DNS. The configuration allows your IONOS secondary zone to pull automatically and sync records from the external primary via the standard Authoritative Zone Transfer (AXFR) protocol. Likewise, you can configure it the other way around, letting an external secondary pull from a primary hosted in IONOS. It ensures high availability and seamless integration across hybrid DNS setups.

Cloud DNS also supports the creation and management of Pointer (PTR) records for both IPv4 and IPv6 addresses, facilitating reverse DNS (rDNS) lookups.

With the DCD and the Cloud DNS API, you can manage the primary and secondary zones, associated zone records, and PTR records.

The following operations can be performed only via the API:

• import and export primary zone files

• enable DNSSEC keys for primary zones

Product Overview

Cloud DNS Overview

Learn about its features, benefits, and functionality.

Quick Links

Use Cases

Explore the key use cases for implementing Cloud DNS.

DCD How-Tos

Learn how to create and manage primary and secondary zones or reverse DNS via the DCD.

API How-Tos

Learn how to create and manage primary and secondary zones or reverse DNS via the API.

Developer Tools

IONOS Cloud - DNS API

Access the REST API documentation for Cloud DNS.

Cloud DNS SDKs

Interact with the Cloud DNS API using SDKs.

Config Management Tools

Explore configuration management tools compatible with Cloud DNS.

Tutorials

ExternalDNS for Managed Kubernetes

Learn how to use ExternalDNS with Managed Kubernetes.

Set Up a Secondary Zone

Learn how to set up a secondary DNS zone.

Enhance Email Deliverability with a Reverse DNS, SPF, and DKIM Record

Learn how to enhance email deliverability with reverse DNS, SPF, and DKIM records.

Issue TLS Certificates using IONOS Cloud Certbot Plugin

Learn how to issue TLS certificates using the IONOS Cloud Certbot plugin.

Set Up a TLS Certificate using `acme.sh` and IONOS Cloud DNS

Learn how to set up a TLS certificate using `acme.sh` and IONOS Cloud DNS.

Managing TLS Certificates Using IONOS Cloud DNS Webhook for cert-manager

Learn how to manage TLS certificates using the IONOS Cloud DNS Webhook for cert-manager.

Frequently Asked Questions (FAQs)

FAQs

Get answers to the most commonly encountered questions about Cloud DNS.