Cloudflare Browser Insights vs Quantum Metric

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

Top sites by authority

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

United States 382,567

1,158

India 200,487

735

Brazil 176,969

492

Indonesia 173,937

605

United Kingdom 152,644

682

Canada 115,246

771

Germany 112,728

565

France 111,509

575

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 Quantum Metric sites