Vercel's Serverless Pre-Rendering (SPR) feature allows developers to create fast and dynamic websites by pre-rendering pages on the edge of its global Smart CDN network, using a combination of static site generators and serverless functions. This eliminates the need for hard decisions between static and dynamic content, providing instant updates even with dynamic data, while minimizing traffic to backend services and resulting in cost reductions. The feature integrates easily into existing codebases and can be enabled by adding a single line of code, using standard HTTP headers, such as `Cache-Control: stale-while-revalidate`. SPR is suitable for various use-cases, including marketing pages, e-commerce websites, blogs, high-traffic APIs, and public dashboards.