customizr vs Extra

Extra is used by more websites in our catalog: 164 use customizr and 795 use Extra.

Extra sites have the higher median Ahrefs Domain Rating (customizr: 15, Extra: 27).

Between 2026-06 and 2026-07, customizr went from 0.02% to 0.02% of all tracked sites, while Extra went from 0.11% to 0.09%. customizr is gaining ground faster in our index.

No. A site runs a single WordPress theme, so customizr and Extra 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.