Fathom vs Google Analytics

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

Top sites by authority

Fathom · Google Analytics · 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

Fathom · Google Analytics · share of sites in each country using one or the other

United States 5,128

1,603,337

Japan 615

649,985

India 1,781

585,808

United Kingdom 3,204

519,934

Brazil 948

441,421

France 1,325

412,957

Germany 1,893

381,385

Canada 1,547

371,221

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 Fathom sites · All Google Analytics sites