Custom Script for StrongDNS Ip Update on Reboot

I use a DNS service that requires me to update my IP address every time my router reboots and I get assigned a new IP.

I am given a specific identifier in the format of -

"https://strongdns.com/ipupdater/***Unique Key***"

Now I can do this manually.. but would like to add a custom command to the startup of the router everytime my ISP resets my connection (approx every 3 days). StrongDNS themselves document the...

Custom Script for StrongDNS Ip Update on Reboot