arsmtp.com vs cf-emailsecurity.net

arsmtp.com is used by more websites in our catalog: 2,813 use arsmtp.com and 127 use cf-emailsecurity.net.

cf-emailsecurity.net sites have the higher median Ahrefs Domain Rating (arsmtp.com: 30, cf-emailsecurity.net: 59).

Between 2026-06 and 2026-07, arsmtp.com went from 0.34% to 0.32% of all tracked sites, while cf-emailsecurity.net went from 0.02% to 0.01%. cf-emailsecurity.net is gaining ground faster in our index.

No. A site runs a single email host, so arsmtp.com and cf-emailsecurity.net 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.