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Pi-Hole is a very simple DNS based blocker. You can not whitelist ad providers on a origin basis.

• ztoben 7y ago
  They didn't say whitelist ad providers, they said sites. Which you can do with pi-hole.
  • supergauntlet 7y ago
    How does a DNS blocker know what requests are caused by what site? It's a stateless protocol.
    • ztoben 7y ago
      Yeah, that was a misunderstanding on my part. I suppose for their whitelist/blacklist to work with regex matching the ads would have to be served from a similarly named domain. Like facebook.com vs ads.facebook.com, and you'd have to whitelist *facebook.com. And if they were getting ads externally you'd have to whitelist those ads for every site that you visit.