Consent Mode v2 is the updated framework Google requires for sites serving users in the EEA, adding two new parameters (ad_user_data and ad_personalization) on top of the original four. When consent is denied, tags still fire but send cookieless pings that Google uses for conversion modeling rather than user-level measurement.
CookieYes is a consent management platform that handles cookie banners, consent capture, and Google Consent Mode integration. It exposes a global cookieyes object and fires a cookieyes_consent_update event on the dataLayer when a visitor saves their preferences, which you use to trigger a consent update command.
Data redaction is a Consent Mode feature that strips user-identifying parameters (client_id, ad_click_id, full URL parameters) from network requests when ad_storage is denied. You enable it by setting ads_data_redaction to true via gtag, and it only affects what gets sent over the wire, not what your tags collect locally.
OneTrust is an enterprise consent management platform widely used in regulated industries to handle cookie consent, data subject requests, and global privacy compliance. For Google Consent Mode integration, OneTrust exposes an OnetrustActiveGroups string and an OptanonWrapper callback that you map to the Consent Mode parameters.