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 356,639

1,064

India 185,990

663

Brazil 167,096

442

Indonesia 162,375

753

United Kingdom 139,708

610

Germany 103,876

512

Canada 103,033

696

France 97,867

509

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, Aug 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