# Opt-in: what it is and how it works · Zorraquino
> Opt-in is an active expression of acceptance for a specific purpose, such as requesting a subscription. Its design should make clear what is being accepted.
URL: https://www.zorraquino.com/en/dictionary/digital-marketing/opt-in.html

# Opt-in

Opt-in is an active expression of acceptance for a specific purpose, such as requesting a subscription. Its design should make clear what is being accepted

What it means, how it is used and where it comes up, with its related concepts.

[The whole glossary](https://www.zorraquino.com/en/dictionary)

## What it is and how it works

A pre-ticked box should not be confused with an active choice. [Double opt-in](https://www.zorraquino.com/en/dictionary/digital-marketing/doble-opt-in.html) adds confirmation from the specified mailbox, but does not in itself establish personal identity or permission for every use. This entry explains the mechanism without turning it into a single legal rule for all types of communication.

Also known as

Single opt-in, Prior consent

Topics

[Marketing and sales](https://www.zorraquino.com/en/dictionary/category/marketing-y-ventas)

## Related concepts

- [Double opt-in](https://www.zorraquino.com/en/dictionary/digital-marketing/doble-opt-in.html)
- [Permission marketing](https://www.zorraquino.com/en/dictionary/advertising/permission-marketing.html)
- [Opt-out](https://www.zorraquino.com/en/dictionary/digital-marketing/opt-out.html)