A great place to start is what companies like the Financial Times have been doing with Fastly. By pushing authentication to the edge [1] you can cache more. If you're receiving a lot of data in that you need to log and analyse later, you can use the Workers to redirect straight to your logging service - no servers involved [2].

1. https://www.fastly.com/blog/how-solve-anything-vcl-part-3-au...

2. Sorry, couldn't find the link. IIRC Fastly does this with its in-built logging feature.