Amazon S3 vs Cloudflare

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

Top sites by authority

Amazon S3 · Cloudflare · 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

Amazon S3 · Cloudflare · share of sites in each country using one or the other

United States 181,878

1,583,459

India 72,409

622,057

United Kingdom 68,917

513,433

Brazil 58,794

428,068

Canada 54,679

380,528

Germany 44,787

390,348

France 41,897

374,181

Japan 32,678

383,205

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 Amazon S3 sites · All Cloudflare sites