If you want/need to block YouTube using a PiHole, you need to add some entries to the blacklist section of the admin interface.


  1. Open a web browser and surf over to your PiHole appliance.
  2. Log into your PiHole with the admin password.
  3. Select the "BLACKLIST" section (see image below).
  4. Within the "BLACKLIST" section use the list/entry section on the right side to delete/add entries (see image below).
  5. Enter "youtube.com" into the "add a domain" box and click on the "Add (wildcard)" button.  This will enter add an entry for youtube.com or any domain, subdomain or subsite (see image below).
  6. You will want to block applications that utilize the Google APIs as well.  You will need to add youtubei.googleapis.com as well to the block list as another wildcard entry.
  7. When done, you should have two entries in your BLACKLIST (see image below).


This should be enough to block most of YouTube (as of Feb. 2020).  Of course you may find yourself adding entries into this section as time goes on.

I hope this helps!