Tool under construction... Suggest additions

[puneet.pugalia]

http://www.ipmango.com

I am making this tool for free use.
Currently this site has:
1.IP lookup
2.IP-city lookup
3.IP whois
4.Domainname whois
5.Details like ISP, LAN IP, etc

Further additions being made are
1.Port scanning
2.Trace routing
3.Pinging
4.Scan remote sites

These additions will take some time and till then I would like some revisions/comments and additional features/tools which you may want. This site will have free tools for all users. No paid tools.

Thanks!
Waiting for comments