Mimecast vs register.it

Mimecast is used by more websites in our catalog: 11,342 use Mimecast and 256 use register.it.

Mimecast sites have the higher median Ahrefs Domain Rating (Mimecast: 51, register.it: 33).

Between 2026-06 and 2026-07, Mimecast went from 1.6% to 1.3% of all tracked sites, while register.it went from 0.03% to 0.03%. register.it is gaining ground faster in our index.

No. A site runs a single email host, so Mimecast and register.it 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.