Whistle-blowing website Wikileaks has been forced to change its web address after the company providing its domain name cut off service.
EveryDNS.net said it had terminated services because Wikileaks.org had come under massive cyber attacks.
But Wikileaks has already reappeared using a Swiss web address.
Wikileaks has also used micro-blogging site Twitter to urge its fans to redistribute its “raw” net address so it can be viewed at any time.
This numerical internet protocol (IP) address remains live and accessible even when web domains – the normal “www” addresses used to access most sites – are unavailable.
Experts say it is likely that Wikileaks has done deals with lots of web hosting companies, although many are likely to back away from dealing with the controversial site in the light of recent web attacks.
There is also a published list of mirror sites, which Wikileaks hopes will provide constant access to the site.
Some of these sites have simply copied Wikileaks’ content and put it on a different web server, while others are using different domain names to point at the original content.
The more of these sites there are, the more difficult it will be to shut Wikileaks down, security analyst Paul Mutton told the BBC.
In France, the industry minister Eric Besson has called for a ban of Wikileaks on French servers.
One of the mirror sites, Wikileaks.ch, is currently hosted on servers in France.