UIKit vs ZURB Foundation

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

Top sites by authority

UIKit · 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

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

United States 39,677

97,282

Germany 19,335

27,418

United Kingdom 9,971

33,264

India 12,588

24,995

France 9,948

23,439

Canada 5,978

26,635

Italy 11,885

17,777

Spain 9,100

16,137

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, Jun 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 UIKit sites · All ZURB Foundation sites