ctmail.com vs kasserver.com

kasserver.com is used by more websites in our catalog: 204 use ctmail.com and 736 use kasserver.com.

kasserver.com sites have the higher median Ahrefs Domain Rating (ctmail.com: 19, kasserver.com: 29).

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

No. A site runs a single email host, so ctmail.com 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.