GPC mentioned/supported but no visible 'Opt-Out Preference Signal Honored' display

Global Privacy Control (GPC) is a browser signal that tells websites a visitor wants to opt out of having their data sold or shared, sent automatically via a request header called Sec-GPC. This check looks for a visible on-page acknowledgement when that signal is received. On this site, GPC support is mentioned or detected, but no visible confirmation, such as an 'Opt-Out Preference Signal Honored' badge, is shown to the visitor. California's CCPA (California Consumer Privacy Act) regulations, effective from 1 January 2026, require sites to visibly display that they've honoured an opt-out signal, not just process it silently in the background. Colorado, Connecticut, and New Jersey joined a coordinated enforcement sweep on this exact issue on 9 September 2025, so silent honouring, even if technically correct, is no longer considered sufficient on its own. Your developer and privacy lawyer should add a visible badge or notice, such as 'Privacy preference signal detected - opted out of sale/share', placed near the footer or inside the cookie banner, that appears whenever the site detects the Sec-GPC: 1 header. This is a small UI addition, typically 2 to 3 hours of combined development and legal review to get the wording right.