Some clients find it confusing that our documentation for web scenarios: https://www.zabbix.com/documentation/5.0/manual/web_monitoring does not mention that host inteface is irrelevant and even a dummy host with a default interface and settings (and in versions >=5.2 wihout any interface at all) can be used for web monitoring.
Please, consider, noting this in the documentation.
The point is mentioned in this video - https://youtu.be/L_J56StHHbg?t=84