Cloudcare New Network (Router Setup DynDNS)

Hello,
we are currently start the change from cloud console to cloudcare with Network security
We start the setup for an new Network. I can not find this Informarion in the Cloudcare Network options, only DNS Server / Username & password but the setup for DynDNS my Router (fritzbox) need a Update URL.
What ist the update url for cloudcare DyDNS?
Thanks