http:/ / samspade.org/
SamSpade is both a windows application and a website that allow you to: ping, nslookup, whois, IP block, whois, dig, traceroute, finger, SMTP VRFY, web browser, keep-alive, DNS zone transfer, SMTP relay check, Usenet cancel check, website download, website search, email header analysis, Email blacklist query, Abuse address query, S-Lang scripting & Time.
