while reading Baseline Requirement for Public CA I noticed something.
Authorized Ports: One of the following ports: 80 (http), 443 (http), 25 (smtp), 22 (ssh).
this includes port 22 and implies there is some way to use SSH for something. but in the entire documents it appears only 4 times. First on definition itself, and 188.8.131.52.6 Agreed-Upon Change to Website (needs to be http or https) 184.108.40.206.9 Test Certificate (Must via TLS) 220.127.116.11.10. TLS Using a Random Number (Must via TLS)
As SSH is nether http/https nor use TLS, where is no way to use this port for domain validation(unless you are weirdo runs a webserver on port 22). why CAA included this port? was there a historical method that retired?