Just like Google and most other search engines, Conductor Website Monitoring distinguishes websites based on domain name, including sub-domains. This means that `example.com` and `subdomain.example.com` are considered to be separate websites, and if you want to track them both you need to add them separately in Conductor Website Monitoring.

The only exception regarding sub-domains is the `www`-variant: `example.com` and `www.example.com` are considered to be the same website.