Blocklists used to generate Pi-hole's Gravity

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@andrew657

Most are ‘Ads by Google’. I can identify that from the grey button within the ads which allow me to select preferences about each ad.

If these are the same ads I see on a Google search (image below), Pi-hole doesn't block them since the ads you see are from the same domain as the content. It is only when you click on one of the ad links that you are directed to a different domain that Pi-hole can block.

@andrew657

An example of a website where ads are showing is imore.com, but only on iPhone

For comparison, this is what I see on that site using the basic 5 blocklists:

Given that you only see ads on the iPhone, it is possible that the iPhone has another DNS server available and the DNS requests are not all going to the Pi-hole.

You can check and see how the ads are being served using these tools:

How do I determine what domain an ad is coming from?

Block ads or fix broken sites This FAQ is written in the context of finding out how to block an ad that isn't blocked automatically, but the same steps can be used to troubleshoot issues with sites that don't function properly. An example is that sometimes certain payment gateways try to collect metrics on the sale, but these domains are blocked by Pi-hole, so the payment cannot be processed. Also, some links send you through several referrers and if one of them is blocked, you may land on a …