Is your feature request related to a problem? Please describe.
Yes, api.myip is not a 100% stable solution, as the server sometimes goes down.
An example would be yesterday

Describe the solution you'd like
Add an option for another IP api incase of api.myip going down

Describe alternatives you've considered
I've forked this project and added a -h / --httpbin flag for using http://httpbin.org/ip and it works minus the cc feature

Additional context
Would love to create a pull request but viewed the requirements being that an issue is opened first