Two lists, and they are never added together
The known list is site blocking's own. It holds 356,500 gambling domains, it lives on Fold’em’s servers, and the resolver answers for every one of them with nowhere. Because the resolver answers the name lookup for the whole phone, that list reaches Safari, Chrome, Firefox, Edge and the browsers built into other apps alike. It is the number the setup walk and the landing page quote, and it is the only list that grows on its own.
The second list is the one you make. Add a site, on the Sites layer once at least one app is blocked, opens Apple's picker, and a website you pick there is listed under Added by you and blocked by Screen Time while protection holds, with Fold’em’s own block screen in front of it. It is a short list of the places the known list happened to miss, not an attempt at breadth, and its count is yours alone.
Checking what is covered
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Read the Sites layer first
No list matters while the resolver is not answering. On the Lock tab, tap the pill, then Sites. A page that leads with 356,500 and the line "gambling sites blocked in every browser and app" means the known list is answering. A red Sites tile, with "Site blocking is off, so gambling sites are open." or "Another VPN is in front of site blocking.", means the known list is not the one holding.
Sites, on
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Look up the operator
The operators with a page of their own say which of their domains were answered by the resolver, measured against the live resolver rather than asserted. Of 104 operators checked on 1 September 2026, 76 had at least one of their domains answered.
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Add whatever is missing
Tap Add a site. Apple's picker opens with what you already blocked ticked; pick the website there and finish, leaving at least one app ticked. It joins Added by you for as long as protection holds, and nothing on the list leaves before then.
How the lists change
The known list lives on Fold’em’s servers, so it grows without an app update and without anything for you to do. Your own list changes only when you add to it, and only upward while protection runs.
Somebody comparing list sizes across products is asking a different question, and how to block gambling apps on iPhone answers that one.
What this does not do
No list of gambling domains is complete, and Fold’em does not claim one is. The operator pages state coverage site by site because that is the only honest form: a site that redirects to a domain nobody has catalogued will load. Both lists cover this phone, not a laptop or a second device. And a blocked domain is not a blocked account: Fold’em does not close, freeze or self exclude you from an operator, which is what a national self exclusion scheme does, and the two hold different ground.
Write to us and a person reads it. We answer within two working days, and we would rather hear the question twice than not at all.