Bootstrap vs ZURB Foundation

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

Top sites by authority

Bootstrap · 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

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

United States 886,770

97,282

India 429,293

24,995

Germany 322,762

27,418

United Kingdom 295,976

33,264

France 279,130

23,439

Brazil 273,285

13,400

Italy 251,088

17,777

Canada 202,018

26,635

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 Bootstrap sites · All ZURB Foundation sites