ifconfig.co: Simple IP address lookup service

A simple service for looking up your IP address. This is the code that powers http://ifconfig.co

Basic usage

# The usual suspects
$ curl ifconfig.co
127.0.0.1
$ wget -O - ifconfig.co
127.0.0.1
# BSD fetch
$ fetch -o - ifconfig.co
127.0.0.1

Pass the appropriate flag (usually -4 and -6) to your tool to switch between IPv4 and IPv6 lookup.

Features

• Easy to remember domain name
• Supports IPv4 and IPv6
• Open source
• Fast
• Supports typical CLI tools (curl, wget and fetch)

Why?

• To scratch an itch
• An excuse to use Go for something
• Faster than ifconfig.me and has IPv6 support

Code style

$ gofmt -tabs=false -tabwidth=4