A website can be taken down for for copyright violation. The OSP/ISP that is hosting the website can take a website down if the site does not remove or "take down" the infringing content identified in a DMCA Takedown notice.
A DMCA Takedown notice is the preferred method for this process. The DMCA contained within the USA Copyright Act is clear on the process that must be followed before an infringing website can be taken off line. DMCA.com's professional, qualified, experienced case management staff can conduct this takedown notice on your behalf.
If you have any further questions, please submit a question and we will be happy to answer.
Other FAQ's that will interest you:
What do I need to know in order to create a Takedown case with DMCA.com?
Where do I go to create a Full Service Takedown case?
How do I sign up so I can do Takedowns on my own?