Back to all glossary articles

Double opt-in

A double opt-in is one of the sign-up methods for receiving email marketing. The first step is when a user submits their email address while subscribing to, for instance, a newsletter. The next step is to activate the subscription by confirming the email address in the received message.

One of the benefits of the double-in method is that it lets you create a valid mailing list of high quality audience. On the other hand, because users are asked to perform another Action , it’s possible that they would overlook your confirmation email and you won’t be able to add them to your list.

  • Privacy by design in practice: How “just enough” data beats “just in case” collection

    While collecting more data “just in case” feels safer, according to Matt Gershoff, it’s also one of the biggest sources of unnecessary compliance risk, analytical noise, and wasted organizational resources in the analytics industry today. His approach of “just enough” data collection is more intentional, more aligned with privacy regulation, and often more analytically effective.

  • 4 ways to make your analytics HIPAA-compliant: Implementation guide

    Healthcare organizations have four main approaches to achieving HIPAA-compliant analytics. Each has different trade-offs in cost, technical complexity, and analytics capabilities. This guide compares all four implementation methods – from using Google Analytics with workarounds to deploying fully HIPAA-compliant analytics platforms – so you can choose the right approach for your organization’s needs and resources.

Other definitions

Recent posts from Piwik PRO blog