Are portals public and accessible to anyone with the URL?

Portals in Appian can indeed be configured as public, meaning they are accessible to anyone who has the URL. This feature allows organizations to create public-facing applications that don't require users to log in or authenticate before accessing the portal. This flexibility is particularly useful for scenarios such as customer service platforms, public information sites, or any application where the goal is to provide information or services to a broad audience without barriers.

The option indicating that portals are not accessible to anyone would be incorrect in this context, as it does not account for the intentional design of public portals within Appian that facilitate easy access for users. Instead, the design choices empower developers to determine the level of accessibility for their applications based on specific use cases.