CentOS vs Ubuntu

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

Top sites by authority

CentOS · Ubuntu · 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

CentOS · Ubuntu · share of sites in each country using one or the other

United States 12,631

71,685

India 7,375

57,063

Germany 5,581

34,846

Brazil 5,311

32,677

Russia 3,737

33,629

United Kingdom 5,698

29,881

France 4,841

26,849

Italy 6,135

25,439

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 CentOS sites · All Ubuntu sites