It can be anything! An apex, subdomain, or even a URL.
Results forwww.online.lync.com.office.urgo-prod1.laboratoiresurgo.myshn.eu
online.lync.com.office.urgo-prod1.laboratoiresurgo.myshn.eulync.com.office.urgo-prod1.laboratoiresurgo.myshn.eucom.office.urgo-prod1.laboratoiresurgo.myshn.euoffice.urgo-prod1.laboratoiresurgo.myshn.euurgo-prod1.laboratoiresurgo.myshn.eulaboratoiresurgo.myshn.eumyshn.eueu