scalability questions

JWT improves scalability in distributed systems by eliminating the need for server-side session management. Since JWTs are self-contained and stateless, they include all necessary information for authentication within the token itself. This allows multiple servers or services to validate tokens independently without relying on a centralized session store. As a result, distributed systems can handle higher loads and scale more effectively because they do not need to synchronize or manage session state across multiple instances.

The main advantages of using JWT for authentication include statelessness, scalability, and flexibility. JWTs are stateless, meaning all necessary information for authentication is contained within the token, reducing the need for server-side session storage. This stateless nature enhances scalability, as tokens can be validated independently by multiple servers or services. JWTs are also flexible, supporting various signing algorithms and claim types, allowing for customized authentication and authorization mechanisms. Additionally, their compact and URL-safe format makes them suitable for modern web and mobile applications.