twentytwentyone vs understrap

twentytwentyone is used by more websites in our catalog: 655 use twentytwentyone and 103 use understrap.

understrap sites have the higher median Ahrefs Domain Rating (twentytwentyone: 18, understrap: 31).

Between 2026-06 and 2026-07, twentytwentyone went from 0.08% to 0.07% of all tracked sites, while understrap went from 0.01% to 0.01%. understrap is gaining ground faster in our index.

No. A site runs a single WordPress theme, so twentytwentyone and understrap 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.