Your IP. In JSON
Some suggestions:<p>Make jsonip.com dual stack IPv4/IPv6 and work for IPv6 addresses too. Return some other useful IP information, such as the PTR, the domain name part of the PTR, and the country code and name.<p>Example: <a href="https://grepular.com/ipinfo" rel="nofollow">https://grepular.com/ipinfo</a><p>EDIT: Don't use that URL for your own stuff or I'll block it. I only put it there as an example of how the JSON should be returned.<p>EDIT2: Might be useful if it included the IP addresses from any X-Forwarded-For HTTP header too.