Bootstrap vs CivicTheme

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

Top sites by authority

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

United States 783,149

8,698

India 375,468

2,967

Germany 285,193

4,769

United Kingdom 258,945

4,018

Brazil 247,896

2,132

France 233,698

3,057

Italy 215,264

2,996

Canada 174,973

2,655

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 CivicTheme sites