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 1,645,337

23,700

Japan 705,260

6,143

Germany 672,972

7,802

India 652,564

9,406

United Kingdom 543,018

9,959

France 501,574

7,528

Brazil 468,680

8,307

Italy 448,261

6,050

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 jQuery sites · All Polyfill sites