# Sign up / Guest account The Online Services can be used as a guest (without creating a user account) or as a registered user. Please note that as a guest, you may not have access to all services, as some airports require a verified email address and a billing address. If you use the Online Services regularly, it is recommended to create a user account. You can then also create templates and profiles to process requests more efficiently. {% hint style="info" %} Self-reporting of flights (departure/arrival report) outside of regular operating hours require a registered user. {% endhint %} {% hint style="info" %} A security check is required when logging in or when signing up for a new account. [Please refer to this section for more information.](https://help.airport.software/english/how-to-use-the-website#security-check-at-login) {% endhint %}