Your IP-Address is: 

2600:1f28:365:80b0:65b8:d41b:e506:4cb3

use curl from command line:

# curl goip.info
# curl goip.info/?format=json

2600:1f28:365:80b0:65b8:d41b:e506:4cb3

ipv4.goip.info  and  ipv6.goip.info  also work.