The whistleblower website Wikileaks was back on line Friday with a new Swiss address six hours after its previous domain name was shut down. Wikileaks moves to Switzerland, the group declared on Twitter, although an Internet trace of the new domain name suggested that the site itself is still hosted in Sweden and in France. Webusers accessing the address are directed to a page under the URL which gives them access to the former site, including a massive trove of leaked US diplomatic traffic.