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 4,298

849,474

Germany 1,299

314,354

India 972

299,510

Japan 1,479

282,542

Italy 766

282,524

France 889

271,447

United Kingdom 1,049

269,921

Spain 764

252,481

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 HeadJS sites · All jQuery Migrate sites