HeadJS vs jQuery Migrate

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

Top sites by authority

HeadJS · jQuery Migrate · 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

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

United States 4,363

873,360

Germany 1,335

320,699

India 976

307,283

Japan 1,522

283,792

United Kingdom 1,045

271,907

Italy 760

269,098

France 897

267,883

Brazil 635

256,253

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 HeadJS sites · All jQuery Migrate sites