Proton Mail vs registeredsite.com

Proton Mail is used by more websites in our catalog: 1,505 use Proton Mail and 163 use registeredsite.com.

Proton Mail sites have the higher median Ahrefs Domain Rating (Proton Mail: 30, registeredsite.com: 9).

Between 2026-06 and 2026-07, Proton Mail went from 0.21% to 0.17% of all tracked sites, while registeredsite.com went from 0.02% to 0.02%. registeredsite.com is gaining ground faster in our index.

No. A site runs a single email host, so Proton Mail and registeredsite.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.