Want to give out to https://traefik.io/ as one of the few reverse proxies that has full native support for TLS-ALPN-01. Easy way to add this in front of older servers, and it supports reading config from Consul, Redis, or even Docker/Kubernetes tags. Very nice product, it also supports DNS-01 validation for wildcard certs with many providers, unfortunately you have to set it to either DNS or ALPN mode, it can't choose which one to use based on context.