This is just DNS-level blocking; I&#x27;m pretty sure you can do this already if you have a Linux-based router that has a DNS server+resolver built in (i.e. most of them), but if you have an RPi lying around doing nothing, might as well put it to use.<p>Note that this doesn&#x27;t block ads which are inlined and&#x2F;or otherwise combined with content; for that, you can use a MITM proxy like Privoxy.