Dynu DDNS i Every 60s (while enabled and configured), a request like this is sent for each hostname below:
GET https://api.dynu.com/nic/update?username=...&password=...&hostname=<hostname>&myip=<your public IP>
That's how Dynu points the hostname at your current public IP.

Stored encrypted. Leave blank to keep the current password.
Comma-separated, all updated with the same account each cycle.

Data Collection