Kajabi vs Substack

Substack is used by more websites in our catalog: 399 use Kajabi and 463 use Substack.

Substack sites have the higher median Ahrefs Domain Rating (Kajabi: 24, Substack: 32).

Between 2026-06 and 2026-07, Kajabi went from 0.05% to 0.05% of all tracked sites, while Substack went from 0.06% to 0.05%. Kajabi is gaining ground faster in our index.

No. A site runs a single CMS / website platform, so Kajabi and Substack 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.