co.uk vs stackmail.com

co.uk is used by more websites in our catalog: 2,691 use co.uk and 2,434 use stackmail.com.

co.uk sites have the higher median Ahrefs Domain Rating (co.uk: 26, stackmail.com: 17).

Between 2026-06 and 2026-07, co.uk went from 0.37% to 0.31% of all tracked sites, while stackmail.com went from 0.35% to 0.28%. co.uk is gaining ground faster in our index.

No. A site runs a single email host, so co.uk and stackmail.com are mutually exclusive.

Adoption is counted from Site Stats Database's own crawl; Domain Rating comes from Ahrefs and traffic from DataForSEO. Figures reflect the sites we track and refresh at least monthly.