Advocacy group files CMA complaint over W3C plans to block third-party cookies
31/07/2025 | MediaPost
The Movement for an Open Web (MOW), an advocacy group for web publishers, has filed a complaint with the UK Competition and Markets Authority (CMA) challenging the World Wide Web Consortium's (W3C) position on removing third-party cookies. MOW's complaint alleges that the W3C's stance is anti-competitive and unfairly favours large tech platforms, such as Google, at the expense of web publishers.
According to MOW, the W3C has become dominated by the interests of tech giants, and smaller companies are disadvantaged without third-party cookie data. The complaint argues that by supporting this proposal, Google is violating its Privacy Sandbox commitments to the CMA. MOW states that third-party cookies are a vital revenue source for approximately 70 per cent of publishers, and the W3C's decision aligns with Google's interests rather than acting as a neutral standards body.
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