I like that one. My domains for this purpose are: http://i.net/ http://i.net/ and http://ip4.me/ http://ip4.me/ (or http://ip6.me http://ip6.me, if you know

I like that one. My domains for this purpose are: http://i.net/ http://i.net/ and http://ip4.me/ http://ip4.me/ (or http://ip6.me http://ip6.me, if you know you have IPv6 connectivity)