I saw it in the Links -> Top Pages menu, here many sub domains were detected. even though I never made it, is that normal?
multiple subdomains detected:
w4bd5da.dummy.com
09x.dummy.com
7h5a.dummy.com
8d1y8ec.dummy.com
sfxpwzx.dummy.com
px0ke.dummy.com
uaj.dummy.com