core-js vs Loadable-Components

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

Top sites by authority

core-js · Loadable-Components · 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

core-js · Loadable-Components · share of sites in each country using one or the other

United States 1,295,217

19,154

India 433,567

5,892

Brazil 406,300

3,209

United Kingdom 402,603

4,609

Germany 384,505

6,525

France 315,055

4,105

Italy 302,259

3,440

Canada 295,823

4,037

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 core-js sites · All Loadable-Components sites