"We collect and use data for interest-based advertising and tailored advertising purposes. Interest-based advertising, also known as personalized or targeted advertising, involves collecting data across different websites and applications to predict your preferences and show you advertisements that are more likely to be of interest to you. The data collected for these purposes may include, but is not limited to: Information about your interactions with our websites, applications, and advertisements. Data from cookies and similar tracking technologies placed on your device. Information provided by third parties, such as demographic data, interests, and preferences."
Haystack collects data across websites and apps for targeted advertising and shares demographic and usage data with advertisers and business partners. California disclosures explicitly reference opt-out rights for 'selling' or 'sharing' personal information, confirming data is shared for advertising purposes.