There are a number of whois gateway web sites, which provide web-based interface to the whois command. However, using these sites is NOT recommended because of the possibility that the domain names being queried may be being monitored. A domain name being queried may be registered by someone else within a short period of time so that although it was available at the time of the query, it is no longer available when you go to register it. (See Whois Hijacking My Domain Research? at eWeek.)
One site that provides a WhoIs query gateway and does not monitor or hijack individual domain name queries is the WhoIs Query web site. (It does however track availability statistics for the whois services of various registries and registrars.)
Home > Internet > Domain Names > registration > WhoIs > Check Availability
Viewing mobile website page. Switch to WML or Full HTML