The Wayback Machine - https://web.archive.org/web/20130818095937/http://www.searchengineoptimising.com/network-query
Network Query Tool is a one-stop solution for obtaining information about a domain name or an IP address. Rather than using a variety of shell commands, or visiting numerous websites to investigate a host, just load Network Query Tool in your browser and enter the hostname or IP.
Network Query Tool Features
You can also select tasks individually if you don't need (or don't want to wait for) all of the information. The traceroute command, in particular, can take a while to finish.
Reverse DNS lookup:
Resolves an IP address to a hostname (if one exists) or vice versa
DNS query - aka Dig
Gets domain registration information, supporting just about every known TLD, gTLD, and ccTLD.
Gets IP owner information, supports all IP blocks maintained by ARIN (US), RIPE (Europe), JPNIC (Japan), APNIC (China/Asia-Pacific), BRNIC (Brazil), LACNIC (Latin America), AFRINIC (Africa), and KRNIC (Korea).
Determine whether or not a port on the target host is open. Defaults to port 80.
Ping: Performs a 5-packet ping to the target.
Traceroute: Performs a traceroute to the target.