Alexa Certified Site Metrics vs Cloudflare Browser Insights

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

Top sites by authority

Alexa Certified Site Metrics · Cloudflare Browser Insights · 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

Alexa Certified Site Metrics · Cloudflare Browser Insights · share of sites in each country using one or the other

United States 2,381

382,567

India 1,482

200,487

Brazil 738

176,969

Indonesia 1,112

173,937

United Kingdom 1,340

152,644

Canada 1,286

115,246

Germany 1,295

112,728

France 1,195

111,509

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, 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 Alexa Certified Site Metrics sites · All Cloudflare Browser Insights sites