Clerk.io vs Nosto

Nosto is used by more websites in our catalog: 133 use Clerk.io and 190 use Nosto.

Nosto sites have the higher median Ahrefs Domain Rating (Clerk.io: 36, Nosto: 50).

Between 2026-06 and 2026-07, Clerk.io went from 0.02% to 0.02% of all tracked sites, while Nosto went from 0.03% to 0.02%. Clerk.io is gaining ground faster in our index.

1 websites in our catalog use both Clerk.io and Nosto.

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.