Cloudflare Browser Insights vs Fathom

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

Top sites by authority

Cloudflare Browser Insights · Fathom · 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

Cloudflare Browser Insights · Fathom · share of sites in each country using one or the other

United States 382,567

5,663

India 200,487

2,033

Brazil 176,969

1,025

Indonesia 173,937

953

United Kingdom 152,644

3,552

Canada 115,246

1,736

Germany 112,728

2,117

France 111,509

1,621

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 Cloudflare Browser Insights sites · All Fathom sites