Radix UI vs W3.CSS

Radix UI is used by more websites in our catalog: 3,291 use Radix UI and 1,051 use W3.CSS.

Radix UI sites have the higher median Ahrefs Domain Rating (Radix UI: 39, W3.CSS: 23).

Between 2026-06 and 2026-07, Radix UI went from 0.47% to 0.37% of all tracked sites, while W3.CSS went from 0.13% to 0.12%. W3.CSS is gaining ground faster in our index.

2 websites in our catalog use both Radix UI and W3.CSS.

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.