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.

Traceroute Online - Traceroute application with mapping and distance calculated and plotted on Google Maps.

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.

On The Go Map - Map a run, walk, or ride from your phone, tablet, or PC.

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

VisualRoute - VisualRoute is a traceroutes and network diagnostic tool that provides reverses trace, reverse DNS and much more.