jQuery Migrate vs YUI

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

Top sites by authority

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

United States 849,474

158,103

Germany 314,354

12,407

India 299,510

13,977

United Kingdom 269,921

30,532

Italy 282,524

8,246

Japan 282,542

4,526

France 271,447

10,444

Spain 252,481

10,483

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 Migrate sites · All YUI sites