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 168,964

1,456,850

India 66,987

571,175

United Kingdom 62,516

472,939

Brazil 57,793

435,717

Germany 40,736

354,801

Canada 49,825

343,253

Japan 29,882

339,857

France 36,411

331,596

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, Sep 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