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 14,716

83,071

India 8,682

62,522

Germany 6,680

41,491

Brazil 6,042

35,577

United Kingdom 6,517

33,985

Russia 4,342

35,160

France 5,895

31,974

Italy 7,152

29,206

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 CentOS sites · All Ubuntu sites