Your IP-Address is: 

2600:1f28:365:80b0:8edd:6509:704:8f44

use curl from command line:

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

2600:1f28:365:80b0:8edd:6509:704:8f44

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