jQuery vs Polyfill

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

Top sites by authority

jQuery · Polyfill · 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

jQuery · Polyfill · share of sites in each country using one or the other

United States 1,602,536

23,184

Japan 694,689

6,044

Germany 657,374

7,634

India 637,845

9,206

United Kingdom 540,397

9,905

France 506,084

7,536

Italy 464,759

6,125

Brazil 453,310

8,172

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 jQuery sites · All Polyfill sites