Is Laravel suitable for large web applications?

Yes. Laravel is used in production by FedEx, Disney Hotstar, BBC, Razorpay, and Pfizer, all of which run very large web applications. For scale, we use queue workers with Horizon, Redis caching, read replicas, horizontal scaling on Forge or Vapor, and asynchronous job processing. We have shipped Laravel platforms serving 40,000 plus concurrent users and 80,000 plus loan applications per month on a single architecture.