Joomla vs Substack

Joomla is used by more websites in our catalog: 2,891 use Joomla and 463 use Substack.

Substack sites have the higher median Ahrefs Domain Rating (Joomla: 29, Substack: 32).

Between 2026-06 and 2026-07, Joomla went from 0.33% to 0.33% of all tracked sites, while Substack went from 0.06% to 0.05%. Joomla is gaining ground faster in our index.

No. A site runs a single CMS / website platform, so Joomla 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.