DynDNS

Always accessible – even with a changing IP address

RB-DynDNS keeps your home network, server, or devices accessible at a fixed internet address. Your current public IP address is automatically linked to your personal DynDNS domain – reliably, quickly, and without complicated setup.

Create your own subdomain, configure it in your router or DynDNS client, and conveniently access your services remotely. RB-DynDNS supports IPv4 and IPv6 and is ideal for VPN, Home Assistant, NAS systems, and custom servers.

Start for free

A / AAAA / CNAME / TXT TTL from 60 seconds Updates via web and API

Free. Simple. Reliable.

Why RB-DynDNS?

RB-DynDNS is free, straightforward, and focused on the essentials. You receive a personal DynDNS address for your private projects and devices.

Management is clear, setup is quick, and there are no hidden fees.

Use cases

What you can use RB-DynDNS for

Home-Server

Web interfaces, NAS devices, media servers, and custom services remain accessible under an easy-to-read name.

VPN and router

Connect to your home network remotely without first looking up the current WAN address.

Cameras and smart home

Access local devices directly when access is configured through a VPN or appropriate port forwarding.

Custom applications

Reach development environments, test systems, and self-hosted applications under a fixed name.

Get started in minutes

How to get started with RB-DynDNS

1

Create account

Register, confirm your email address, and open the customer area.
2

Create a hostname

Choose your personal hostname under rb-ddns.net and the appropriate record type.
3

Update automatically

Enter the update URL and API key in your router, cron job, or script.

Features

More than just an A record

The interface is intentionally streamlined yet provides everything needed for typical DynDNS scenarios: IPv4, IPv6, aliases, text values, flexible TTLs, and automatic updates via API.

A and AAAA

Manage IPv4 and IPv6 addresses for your hostnames and update them automatically via DynDNS.

CNAME and TXT

Point hostnames to other targets or add text values for verification and technical information.

Flexible TTL

Choose how quickly changes to your DNS records should become visible.

API-Update

Securely update your DNS records via API using an API key, hostname, and target value.

Automation

One API endpoint for routers, scripts, and custom applications

The update endpoint accepts API keys in the Authorization header or as a URL parameter. If no target value is supplied for an A or AAAA record, RB-DynDNS automatically uses the detected client IP. More...

POST /api/update
Authorization: Bearer <DEIN_API_KEY>
Content-Type: application/json

{
  "hostname": "zuhause",
  "record_type": "A",
  "target_value": "203.0.113.24"
}

In brief

Frequently asked questions

Do I need a static IP address?

No. DynDNS is specifically intended for internet connections whose public IP address changes regularly.

Which record types are supported?

You can currently manage A, AAAA, CNAME, and TXT records under rb-ddns.net verwalten.

Can my router update the hostname?

Yes, if your router supports custom DynDNS providers or configurable HTTP update URLs. Alternatively, you can use a small script or cron job.