AncestrybyDNA is virtually useless for genealogical purposes, and should not be confused for AncestryDNA whic is sold by Ancestry.com.
Ancestry.com's product is one of the "Big 3" genealogical DNA tests, along with FTDNA and 23andMe. AncestrybyDNA is NOT reccommended by the vast majority of those pundits trusted within the genealogical community.