DNSChecker.org - Check DNS Propagation worldwide. DNS Checker provides name server propagation check instantly. Changed nameservers so do a DNS lookup and check if DNS and nameservers have propagated.
TrueIP - TrueIP is a small program that runs in the system tray, monitoring your IP address(es).
WhatsMyDNS.ME - WhatsmyDNS provides free DNS Resolution Check for checking if your DNS Records are updated in the various locations worldwide.
My Public IP - My Public IP is a utility to let you know through which internet IP the world see you.
Whats My DNS - Instantly check your domain names current IP address and DNS record information against multiple name servers located in different parts of the world.
IP-Toolbox.com - IP-Toolbox.com is the best site for quick and easy viewing of your public IP address and other related information.