Bootstrap vs Radix UI

Head-to-head usage across the sites we track.

Top sites by authority

Bootstrap · Radix UI · how many of each technology's sites sit in the web's highest authority tiers

Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.

By country

Bootstrap · Radix UI · share of sites in each country using one or the other

United States 783,149

64,366

India 375,468

42,500

Germany 285,193

20,788

United Kingdom 258,945

23,181

Brazil 247,896

32,941

France 233,698

17,927

Italy 215,264

13,397

Canada 174,973

18,512

Audience countries from the Chrome UX Report, top markets of either technology.

Real user performance

Median site's p75 values from the Chrome UX Report, Aug 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.

Sites that switched

Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.

All Bootstrap sites · All Radix UI sites