caddy is written in terms of net/http, nginx is written right on top of epoll/kqueue with bespoke HTTP/1x parser in a manually memory managed language. I think the point was not that go is "faster" than anything, it's that it makes it easy to write hard-to-beat network software once you get out of the realm of toy or highly specialized problems.

Maybe a highly tuned nginx by a Russian neckbeard. Who ridiculed you for ever attempting to use nginx without first consulting with an archaic text.

Otherwise nginx is a piece of garbage web-server that likes to pretend it’s 1995. On top of that, it’s one of the most inhospitable toxic communities I’ve ever encountered.

I’d take caddy any day of the week over nginx.