# web sign-in - https://indieweb.org/Web_sign-in - https://indieweb.org/IndieAuth > The process of using your domain to log in to sites and services is called web sign-in and is implemented via a protocol called IndieAuth, an extension of OAuth used for decentralized authentication. > > – [Your Website Is Your Passport - Desmond Rivet](https://desmondrivet.com/2020/02/12/website-identity) > It's entire reason for being is to answer the simple question: does the person behind the browser have control over the URL that they are claiming as their own? > > – [Your Website Is Your Passport - Desmond Rivet](https://desmondrivet.com/2020/02/12/website-identity) > …being a completely decentralized protocol, it's much more in keeping with the spirit of the IndieWeb. > > – [Your Website Is Your Passport - Desmond Rivet](https://desmondrivet.com/2020/02/12/website-identity) > If your goal is to make a social network out of the world wide web, there is a certain elegance to the idea of leveraging DNS as a user registration system. > > – [Your Website Is Your Passport - Desmond Rivet](https://desmondrivet.com/2020/02/12/website-identity)