ipn.fyi

Dynamic DNS Service

What is this?

ipn.fyi provides free dynamic DNS service, allowing you to point a subdomain like yourname.n.ipn.fyi to your changing IP address.

Perfect for home servers, IoT devices, or any system with a dynamic IP that needs a stable hostname.

IPv4 & IPv6

Full support for both IPv4 and IPv6 addresses

API-Based

Simple REST API for automated updates

History Tracking

Keep track of your last 250 IP changes

Quick Start

Update your IP with a simple curl command:

curl -X POST https://ipn.fyi/api/update \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domain":"yourname","ipv4":"1.2.3.4"}'

Or use a simple GET request:

curl "https://ipn.fyi/api/update?key=YOUR_API_KEY&domain=yourname&ipv4=1.2.3.4"