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.

DNS Check - DNS Check enables you to easily monitor, share and troubleshoot DNS records.

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.

NameserversTool.com - Nameserver Lookup Tool

WhatsMyDNS.ME - WhatsmyDNS provides free DNS Resolution Check for checking if your DNS Records are updated in the various locations worldwide.

NsLookup.io - A simple and powerful tool for querying DNS records