Edit: I'm reliably informed that it's enforced at the domain level via a bloom filter stored in /System/Library/PrivateFrameworks/WebContentRestrictions.framework/WCRFilter-2025-09-29.plist
> Edit: I'm reliably informed that it's enforced at the domain level via a bloom filter stored in /System/Library/…
If it is a Bloom filter (with a capital B, as it is named after Burton Howard Bloom; see https://en.wikipedia.org/wiki/Bloom_filter), there’s no way to get URLs out of that. It’s just a collection of bits.
The best you can possibly get is how iOS processes an URL to get the bits to check in the filter, but to get that, you need the code accessing the file.
I'm curious about the story behind this
It's darkly funny that the UK is so far gone these days that people literally do not believe it.
And this is just DNS I assumed unless also keep a record of which ip addresses they actually resolve to.
To be clear I’m interested from the technology perspective and not advocating our UK friends evade government pr0n censors as a form of political protest…