cdnjs vs Fastly

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

Top sites by authority

cdnjs · Fastly · 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

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

United States 374,455

31,385

India 213,663

11,248

Japan 163,202

4,635

United Kingdom 136,403

7,336

Brazil 115,153

6,036

France 104,770

4,668

Canada 97,923

7,302

Germany 94,533

5,436

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 cdnjs sites · All Fastly sites