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Explore a comprehensive research presentation examining how websites comply with California's Global Privacy Control (GPC) requirements under the CCPA. Learn about a large-scale longitudinal study that analyzed 11,708 websites to assess their adherence to California residents' opt-out rights for personal information sale and sharing. Discover the methodology used to evaluate compliance through four key privacy indicators: the US Privacy String, Global Privacy Platform String, OptanonConsent cookie, and .wellknown/gpc.json file. Examine findings showing that only about one-third of sites with evidence of selling personal information implement privacy strings, with compliance rates hovering around 43-45% between December 2023 and April 2024. Understand the implications of widespread non-compliance and the researchers' recommendations for stronger CCPA enforcement, particularly targeting major web publishers. Gain insights into privacy regulation effectiveness and the challenges of ensuring consumer privacy rights are respected at scale across the internet.
