Use this tool to get information on existing domains or to see if a certain domain is registered.

SUPPORTED AMERICAN DOMAINS
COM GOV FED US MIL NET ORG

SUPPORTED EUROPEAN DOMAINS(Including surrounding areas)
AD AE AL AM AT AZ BA BE BF BG BH BJ BY
CF CH CI CM CV CY CZ DE DJ DK DZ EE EG ER ES
FI FO FR GA GB GE GG GH GI GL GN GQ GR GW
HR HU IE IL IM IQ IR IS IT JE JO KE KG KZ
LB LI LR LT LU LV MA MC MD MK ML MT NE NG NL NO
OM PL PT QA RO RU SA SE SI SJ SK SL SM SN SU SY
TD TJ TM TN TR UA UG UK UZ VA YE YU

Database References:

DOMAIN REGISTRAR AND TRAFFIC RANK
Derived from Alexa.
Traffic data are gathered from monitoring millions of surfers using the Alexa Toolbar. The count of unique visitors are from Alexa users during the past 6 months, and equals approximately one days actual unique visitors to the site.

SERVER INFORMATION:
Server info and uptimes are powered by Netcraft.

ARCHIVED PAGES:
Derived from Archive.Org.
This organization have been storing webpages from October 1996 to now, and the database as of March 2001 consisted of more than 10 billion pages (about 1 million Megabytes data).

Check with the relevant sources for copyright, usage, terms, and privacy statements.

If you want to register a new domain or get general info on a top level domain (.com, .net, .edu, etc.) or a country code (.ca, .dk, .fr, etc.) you should use the country code lookup tool.