Cloudflare Browser Insights vs Quantcast Measure

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

Top sites by authority

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

United States 356,639

21,666

India 185,990

7,614

Brazil 167,096

4,575

Indonesia 162,375

4,438

United Kingdom 139,708

8,408

Canada 103,033

8,332

Germany 103,876

6,278

France 97,867

6,074

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 Quantcast Measure sites