How do I let visitors opt-out from tracking?
Embedding an opt-out snippet in your website’s HTML helps you respect your visitors’ privacy. There are two types of the opt-out snippets: domain and global ones. Assigning an opt-out snippet to a domain turns off all tracking tags within a given domain only. Whereas, a global opt-out snippet will turn off all tracking tags on all your websites within your current tag manager instance. This will apply to all websites – even those created after generating an opt-out code.