It can be anything! An apex, subdomain, or even a URL.
Results forwww.hostmaster.www.hostmaster.integration-insights.aetnacvsheatlh.com
hostmaster.www.hostmaster.integration-insights.aetnacvsheatlh.comwww.hostmaster.integration-insights.aetnacvsheatlh.comhostmaster.integration-insights.aetnacvsheatlh.comintegration-insights.aetnacvsheatlh.comaetnacvsheatlh.comcom