whatismyip.cc - External IP Address lookup tool with option to scan the external IP address.
GRC Port Scan - GRC Internet Security Port Scanner. Tests for open ports on your external IP address.
What is My IP Address - Open Source Website To Get Your IPs Address By WebRTC
IP-Toolbox.com - IP-Toolbox.com is the best site for quick and easy viewing of your public IP address and other related information.
ipinfo.io - Simple IP address information.
What is My IP Live - Find your IPv4 and IPv6 just by visiting whatismyip.live - complete IP geolocation is also provided along with some other useful IP tools.