WebCargo - Optimize your workflow by offloading it to us. Useful API's with seamless integration that scale to your needs.
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.
WhoisThisDomain - Domain name lookup tool that allows you to get information about domain registration from WHOIS server.
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.
Whoisology - Connected database of whois records and whois history
NsLookup.io - A simple and powerful tool for querying DNS records