In modern web hosting and application development, microservices architecture has become a fundamental approach. Unlike traditional monolithic applications where all components are tightly integrated, a microservices architecture breaks an application into a collection of small, independent services. Each service runs its own process and communicates with others through lightweight mechanisms, typically HTTP APIs.

This design offers significant advantages for hosting and scalability:

• Independent Deployment: You can update, deploy, or scale one service without affecting others.
• Technology Diversity: Teams can use different programming languages and databases best suited for each service's specific task.
• Improved Resilience: The failure of one service does not necessarily bring down the entire application.
• Scalability: You can scale individual components that are under high load, rather than the whole application.

For hosting, this means your infrastructure needs to support containerization (like Docker) and orchestration tools (like Kubernetes) to manage these distributed services effectively. While it introduces complexity in network management and monitoring, the benefits of flexibility, speed, and resilience make microservices a powerful choice for complex, evolving applications.