Features
Everything you need to keep a changing home IP reachable — and nothing you don't.
Router-native updates
KeepDNS speaks the dyndns2 protocol, the same one built into FRITZ!Box, ASUS, Synology, Ubiquiti, pfSense and OPNsense. Fill in the update host, your username and token once — no extra software, no scripts that stop when your PC sleeps.
IPv4 and IPv6
We keep both your A and AAAA records up to date, so dual-stack and IPv6-only connections work out of the box.
Instant updates, low TTL
Records use a short TTL, so when your IP changes the new address propagates in seconds rather than hours.
Your own subdomain
Claim yourname.keep-dns.nl in a couple of clicks. Add more hostnames whenever you need them.
Bring your own domain
Point a CNAME from home.yourdomain.com at your KeepDNS hostname and keep your own branding, without ever handing us your registrar credentials.
Simple update API
Prefer a cron job or a script? A single authenticated GET request updates your hostname from anywhere.