twentyseventeen vs twentytwentyone

twentytwentyone is used by more websites in our catalog: 651 use twentyseventeen and 655 use twentytwentyone.

twentytwentyone sites have the higher median Ahrefs Domain Rating (twentyseventeen: 14, twentytwentyone: 18).

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

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