I would consult RFC1035 for the label sizes, but the total length can include multiple labels up to 255 in length. Check section 2.3.4
Jared Mauch > On Jul 23, 2016, at 8:31 AM, Ryan Finnesey <r...@finnesey.com> wrote: > > I was hoping someone can help me confirm my research. I am correct that > domains are now limited to 67 characters in length including the extension? > > Cheers > Ryan