Serverless applications offer many benefits over traditional server-based applications; perhaps the most crucial benefit is that they are much cheaper to operate since you only pay for the resources used when the application is actually running, rather than paying for 24/7 uptime.
Another significant benefit is that serverless applications are much more scalable since there is no limit to the number of concurrent requests that can be handled. This makes them ideal for applications that experience spikes in traffic, such as a news site on the day of a major breaking story.