global privacy control

No.

The regulations implementing the CCPA require that in-scope businesses must provide two or more designated methods of submitting requests to opt-out, including an interactive form accessible via a clear and conspicuous link titled “Do Not Sell My Personal Information,” on the business’s website or mobile application.[1]

In addition to the “DNSMPI” link noted

Yes.

Where a global privacy control (“GPC”) conflicts with a consumer’s existing business-specific privacy setting or their participation in a business’s financial incentive program, the business must respect the GPC, but may notify the consumer of the conflict and give the consumer the choice to confirm the business-specific privacy setting or participation in the financial

No.

A group of privacy advocates and privacy software companies has proposed an “unofficial” specification for how consumers might transmit, and how companies might receive, a global privacy opt-out signal that indicates an intention for information not to be sold.  As of 12 October 2020, the draft “Global Privacy Control specification” claims to have “no

A group of privacy advocates, publishers, and privacy software companies have proposed an “unofficial” specification for how consumers might transmit, and how companies might receive, a global privacy opt-out signal that indicates an intention for information not to be sold.  They refer to their specification as the Global Privacy Control header, “GPC header,” or “GPC