Pirate Bay Mirror sites are proxies which come into play when they can no longer access the original website. Is blocked by Internet Service Providers and authorities, only one domain at a time is blocked at Pirate Bay. This does not mean that the servers will not be up and running, or that the website will cease to exist. Quite the contrary, you'll be able to access the same content on a slightly different name and IP address by having a mirror website. And the cycle can be repeated indefinitely only in the event that this new address is still blocked.