@cbowdon If you're still interested in Caddy you should be aware of this:

https://caddyserver.com/blog/accouncing-caddy-commercial-licenses.html

In summary, Caddy is still open-source (Apache 2.0) but the precompiled binaries available from caddyserver.com have a new EULA that requires you to pay if you're a commercial user. Also the non-commercial builds emit a new HTTP response header that advertises Caddy's sponsors.

Interesting discussion about this announcement on HN:

https://news.ycombinator.com/item?id=15237923

Announcing Caddy Commercial Licenses

Today, we're pleased to unveil something we've been working diligently on for the past few months: Caddy Commercial Licenses. This change is designed to accommodate the needs of the growing Caddy community and user base. With commercial licenses, we're able to offer exclusive features and services to our business users that we couldn't do before, while sustaining Caddy's open source development. We're even starting today with one new service for our customers, with more planned!

@jakelow Thanks for the heads up. It's a bit disappointing because I won't use it now (my project is commercial and run in spare time) but actually I think it's a reasonable choice by the author that keeps the software Free. Must sting if you're an existing user suddenly faced with an unexpected cost though, and probably will harm adoption.