Network-Tools.com Microsoft recommends this site for verifying network configurations. Includes a Whois list of countries, Traceroute, Ping, Domain Name Server (DNS) Lookup, WHOIS, DNS Records Lookup, and E-Mail relay Check.
No Tech Knowledge: Utilities Enhanced links to show here yet! This is a perfect opportunity for you to add an enhanced link and become a supporter. Enhanced links are shown randomly every time this page loads. Not only that, but your link still shows in the category listing pages. For maximum exposure consider a sponsored text-link advertisement either site-wide or on these pages.