From GDPR, article 21, paragraph 5 „ the data subject may exercise his or her right to object by automated means using technical specifications. “ https://www

From GDPR, article 21, paragraph 5 „ the data subject may exercise his or her right to object by automated means using technical specifications. “ https://www.privacy-regulation.eu/en/article-21-right-to-object-GDPR.htm https://www.privacy-regulation.eu/en/article-21-right-to-obj... From that it seems pretty clear, that automated signals like „do not track“ are allowed and legally binding.