Serverless hosting is a modern cloud computing model where you run applications and websites without managing physical servers or virtual machines. Despite its name, servers are still involved—but the cloud provider (like AWS, Google Cloud, or Azure) handles all server management, scaling, and maintenance automatically.

Think of it like renting computing power on demand. You only upload your code, and the platform executes it when triggered by events (such as a user visiting your site or an API call). You pay only for the exact resources used during execution, often measured in milliseconds of runtime, making it highly cost-efficient for variable traffic.

Key benefits include:

• Automatic Scaling: No manual setup needed—resources scale instantly with traffic spikes.
• Reduced Operational Overhead: No server patches, security updates, or infrastructure monitoring.
• Faster Deployment: Focus solely on writing code, not configuring servers.

Common use cases are APIs, single-page applications, scheduled tasks, and event-driven microservices. However, it's less ideal for long-running processes or applications requiring persistent server states. Serverless hosting represents a shift toward developer-centric, efficient web infrastructure, allowing businesses to innovate faster while reducing costs.