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 167,802

1,438,078

India 66,465

566,121

United Kingdom 61,290

460,600

Brazil 56,758

429,245

Germany 40,862

354,073

Canada 49,205

336,601

Japan 29,301

335,818

France 36,450

321,551

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 Amazon S3 sites · All Cloudflare sites