It can be anything! An apex, subdomain, or even a URL.
Results forwww.security.live.com.via.proxy-m365.capitalfundmanagement.myshn.eu
security.live.com.via.proxy-m365.capitalfundmanagement.myshn.eulive.com.via.proxy-m365.capitalfundmanagement.myshn.eucom.via.proxy-m365.capitalfundmanagement.myshn.euvia.proxy-m365.capitalfundmanagement.myshn.euproxy-m365.capitalfundmanagement.myshn.eucapitalfundmanagement.myshn.eumyshn.eueu