Sure ad blockers have been around for a long while now, but those are typically only available for your web browsers and not ever device allows you to install them such as cell phones, media players, smart TV’s, etc. I came across a neat project that allows you to block web ads on every device in your network, called Pi-Hole.
In a nutshell Pi-Hole was developed to run on a Raspberry Pi, but will run on most any Debian based distro, and will act as a DNS server to which you point your devices or router to use as the DNS server so that all requests are filtered through Pi-Hole. Pi-Hole then blocks 100’s of thousands ad domains. All without having to use a single browser extension and for FREE!