Ruby on Rails can be used to develop robust and for large-scale web applications. In fact, many well-known companies, including Airbnb, GitHub, Shopify, and Hulu, have used Ruby on Rails to build large-scale web applications.
Ruby on Rails is designed to be scalable and can handle large amounts of traffic and data. The technology includes built-in features for handling database migrations, caching, and load balancing, which can help developers optimize their applications for performance and scalability.