Radix UI vs ZURB Foundation

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

Top sites by authority

Radix UI · ZURB Foundation · 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

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

United States 64,366

87,178

India 42,500

22,314

United Kingdom 23,181

29,173

Brazil 32,941

12,276

Germany 20,788

24,259

Canada 18,512

23,316

France 17,927

19,373

Spain 14,867

13,874

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 Radix UI sites · All ZURB Foundation sites