Answer:
proxy server
Step-by-step explanation:
A proxy server is an application on a server that manages the requests when a a client tries to get the resources from the server and when someone is trying to get into a website the proxy server makes the request, provides the response from the web server and sends the data so it can be visualized and in this process, it can block the access to certain websites. According to that, the answer is that you have to set up a proxy server to help with this request as it will allow you to block the websites.