It can be anything! An apex, subdomain, or even a URL.
Results formx.mx.mx.mx.mx.mx.mx.thelittleskool.com
www.mx.mx.mx.mx.mx.mx.mx.thelittleskool.commx.mx.mx.mx.mx.mx.thelittleskool.commx.mx.mx.mx.mx.thelittleskool.commx.mx.mx.mx.thelittleskool.commx.mx.mx.thelittleskool.commx.mx.thelittleskool.commx.thelittleskool.comthelittleskool.comcom