Fastmail vs SendGrid

Fastmail is used by more websites in our catalog: 1,580 use Fastmail and 112 use SendGrid.

Fastmail and SendGrid sites have a similar median Ahrefs Domain Rating.

Between 2026-06 and 2026-07, Fastmail went from 0.22% to 0.18% of all tracked sites, while SendGrid went from 0.01% to 0.01%. SendGrid is gaining ground faster in our index.

No. A site runs a single email host, so Fastmail and SendGrid 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.