cf-emailsecurity.net vs kasserver.com

kasserver.com is used by more websites in our catalog: 127 use cf-emailsecurity.net and 736 use kasserver.com.

cf-emailsecurity.net sites have the higher median Ahrefs Domain Rating (cf-emailsecurity.net: 59, kasserver.com: 29).

Between 2026-06 and 2026-07, cf-emailsecurity.net went from 0.02% to 0.01% of all tracked sites, while kasserver.com went from 0.10% to 0.08%. cf-emailsecurity.net is gaining ground faster in our index.

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