Since the internet or the World Wide Web does not make the geographical, territorial or jurisdictional boundaries clear, the issue of jurisdiction in cyberspace continues to be a vexed question ever since the emergence of cyber law.
Any particular transaction on the internet may involve the laws of at least three jurisdictions or states. The laws of the states of the buyer and seller and the law of the venue or place of the server hosting the transaction may all be theoretically applicable to such transaction. Where the parties are from different states or nations, in the absence of any internationally accepted jurisdictional law, it becomes a matter of choice of law out of the different systems of applicable law of the concerned states or nations. Such choice of law may turn out to be a very contentious issue among the parties.
However, from the practical angle, a user or web visitor is subject to the laws of that state or nation where he goes online. For instance, the victim has to file suits for copyright infringement on the internet in the Court of the state or nation where the alleged violation took place.