The site owner has explicitly told us not to access the given URL on your behalf.
The rule has been applied for the entire domain.
We apologize for any inconvenience this may cause.
We're against censorship, but fact remains: unvis.it is a very tiny non-profit service with zero funds for getting into any form of legal battle to determine if the service is legal or not.
Meanwhile, we choose to honor requests from websites who wish not to be unvisited by our users.
You can donate! With enough funds we can hire a lawyer and find out if the service actually breach intellectual rights or not.