ip address

If you are using Firefox as your browser, you can install an add-on called 'Domain Details' (current version 1.2).

Once installed it gives you all details of the currently displayed site including Server, Whois and Domain Information.

[u]Here is the result for TechRepublic[/u]

[b]IP Address: 216.239.116.158

IP Address Details:
Domain Name: c13-b2b-community-lb.cnet.com
Location: San Francisco, CA, UNITED STATES Country Flag
Serving HTTP (Port 80): Yes

IP Address Whois:
ET Networks Inc.
OrgID: CNETNE
Address: 235 Second Street
City: San Francisco
StateProv: CA
PostalCode: 94105
Country: US

NetRange: 216.239.112.0 - 216.239.127.255
CIDR: 216.239.112.0/20
NetName: CNET-NETWORKS
NetHandle: NET-216-239-112-0-1
Parent: NET-216-0-0-0-0
NetType: Direct Assignment
NameServer: NS.CNET.COM
NameServer: NS2.CNET.COM
NameServer: NS3.CNET.COM
Comment:
RegDate: 2003-05-16
Updated: 2004-08-03

OrgAbuseHandle: CNAC-ARIN
OrgAbuseName: CNET Networks abuse contact
OrgAbusePhone: +1-415-344-1662
OrgAbuseEmail: abuse@cnet.com

OrgTechHandle: CATRA-ARIN
OrgTechName: CNET ARIN Tech Role Account
OrgTechPhone: +1-415-344-2254
OrgTechEmail: arin-tech@cnet.com

# ARIN WHOIS database, last updated 2007-12-13 19:10[/b]

c:\>nslookup www.yahoo.com as an example

It will return you the IP address of the DNS A records for that website.