Auth0 vs Clerk

Clerk is used by more websites in our catalog: 284 use Auth0 and 333 use Clerk.

Auth0 sites have the higher median Ahrefs Domain Rating (Auth0: 62, Clerk: 27).

Between 2026-06 and 2026-07, Auth0 went from 0.04% to 0.03% of all tracked sites, while Clerk went from 0.05% to 0.04%. Clerk is gaining ground faster in our index.

0 websites in our catalog use both Auth0 and Clerk.

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.