California cookie consent refers to the disclosure and opt-out requirements imposed by the California Consumer Privacy Act (CCPA) and its amendment, the California Privacy Rights Act (CPRA). Unlike GDPR, which requires opt-in consent before setting non-essential cookies, California law operates on an opt-out model: businesses may set cookies by default but must provide a clear and conspicuous Do Not Sell or Share My Personal Information link that allows consumers to opt out of having their data sold or shared for cross-context behavioural advertising.
If a website uses cookies that facilitate the sale or sharing of personal information, including most advertising cookies, the opt-out mechanism is mandatory.
The CPRA regulations require businesses to honour the Global Privacy Control (GPC) browser signal as a valid opt-out of the sale and sharing of personal information. This means that when a California consumer visits your site with GPC enabled, your website must automatically suppress advertising cookies and third-party tracking that constitutes a sale or share, even before the visitor clicks any link.
Additionally, businesses that collect sensitive personal information through cookies must offer a Limit the Use of My Sensitive Personal Information option. These requirements demand a technical solution that detects browser signals, adjusts cookie behaviour in real time, and logs the interaction for compliance records.
Seers’ CMP is configured to detect California visitors through geo-targeting and present a CCPA/CPRA-compliant banner with the required opt-out links. The platform automatically recognises incoming GPC signals and suppresses non-essential cookies without requiring user action.
When a visitor exercises the opt-out, Seers blocks advertising and data-sharing scripts, triggers the deletion of associated cookies, and logs the opt-out with a timestamp for audit purposes. Integration with Google Consent Mode v2 ensures that Google tags respect the California-specific consent state, preserving modelled conversion data while honouring the consumer’s choice.
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