Nslookup
hexillion.com
Verify and validate email addresses, check domain name availability, and more using ActiveX / COM / .NET components for DNS, ICMP, HTTP, Whois, Finger, Ping, Traceroute, and...
792,538 
$ 960.00
domize.com
Domize is a domain name search engine that begins looking up the availability of a domain name as soon as you start typing it. Domize provides a secure and private environment...
285,298 $ 28,620.00
2whois.ru
Сервис WHOIS. Узнай свободен ли домен. Проверка работы сайта: DIG, PING, TRACEROUTE, NSLOOKUP. Определение записи PTR.
701,892 $ 1,680.00
centralops.net
Free online network tools, including traceroute, nslookup, dig, whois, ping, and our own Domain Dossier and Email Dossier. Works with IPv6. Some source code included.
108,408 $ 102,000.00
subnetonline.com
SubnetOnline.com, online subnet calculator tools, online network tools, network resources, downloads, subnetting and CIDR guides and more...
253,451 $ 32,400.00
digwebinterface.com
Extensive web interface to dig for doing online dns lookup / nameserver query.
175,093 $ 63,000.00