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How do I set privacy rules per region?

How regions are detected, what each rule can override, and the built-in defaults for the EEA, California and China.

Privacy and security1 min readLast updated Oct 28, 2026TapCub teamPart of The compliance center explained

Short answer

Each region rule can override the tier, the consent requirement, IP truncation and geo precision. Regions are derived from the country of the address before it is discarded (and for the US, whether the state is California). A blank field inherits the project default.

What a region rule overrides

Regions are derived from the country of the address before it is discarded (and for the US, whether the state is California). Each region rule can override the tier, the consent requirement, IPv4 / IPv6 address truncation, and the geography granularity:

RegionDefault rule
EEA, UKInherits the project default; when the last 30 days have EU / UK visitors, the center suggests enabling IP truncation for these regions only
US-CaliforniaInherits project default; opt-out honored
Rest of USInherits project default
China (CN)Inherits project default; China mode adds further rules
OtherInherits project default

Privacy signals always win

A blank field inherits the project default. Global Privacy Control and Do Not Track are honored in every region and force tier 1 for that hit, regardless of the region rule — see how DNT and GPC are honored. China has its own extra layer in China mode.

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