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 886,770

9,918

India 429,293

3,449

Germany 322,762

5,480

United Kingdom 295,976

4,592

France 279,130

3,625

Brazil 273,285

2,386

Italy 251,088

3,481

Spain 202,979

2,838

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 CivicTheme sites