This article explains how to block access to websites at the router level. This means blocking them on all devices in your home.
How to Set Up Parental Controls on a TP-Link Router
All routers are different, and yours may not have the ability to set parental controls in an access restriction section. Here is the general process for creating an access control policy to block your child from accessing a site.
Log in to your router's management console using a browser on your computer. Scroll down for more detailed instructions on this step.
Find the Access Restrictions page or the Parental Controls page, if you have one.
