whatsmydns.net
Instantly check your hostnames current IP Address and other DNS information against a selection of random name servers around the world.
DNS Propagation Checker
Global DNS Propagation Checker: Check the propagation of your domain or website across the world's DNS servers.
DNSPropagationTool.com
DNS Propagation Checker Tool. Check DNS of a domain name from multiple DNS nameservers and resolvers around the world.