[Fernado Samuel]

RemovedRemovedRemovedRemovedRemovedRemovedRemovedR emovedRemovedRemovedRemovedRemovedRemovedRemovedRe movedRemovedRemovedRemovedRemovedRemovedRemovedRem oved

[gtakillerIV]

Try to visit it?

[V1ceC1ty]

http://who.is/

[Georgi166]

****** isitdownorjustme

[admantis]

You can also try pinging the domain to check if it exists (go on the Command Prompt and type "ping www.site_name_here.com").

[Potassium]

http://www.whois.net/whois/YOURDOMAINHERE

[saiberfun]

Every registrar will tell you if it's taken or not when trying to register that domain.