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 181,878

424,275

India 72,409

241,139

United Kingdom 68,917

157,683

Japan 32,678

191,810

Brazil 58,794

128,927

Canada 54,679

113,739

France 41,897

126,091

Germany 44,787

108,676

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 cdnjs sites