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 758,929

86,282

India 368,409

21,706

Germany 277,428

23,949

United Kingdom 255,833

29,226

France 234,434

19,589

Brazil 241,343

12,037

Italy 222,549

15,964

Spain 183,194

14,729

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, Sep 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