Amazon S3 vs cdnjs

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

Top sites by authority

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

United States 167,802

374,455

India 66,465

213,663

United Kingdom 61,290

136,403

Japan 29,301

163,202

Brazil 56,758

115,153

Canada 49,205

97,923

France 36,450

104,770

Germany 40,862

94,533

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 cdnjs sites