React vs Socket.io

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

Top sites by authority

React · Socket.io · 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

React · Socket.io · share of sites in each country using one or the other

United States 651,665

8,377

India 252,538

5,162

United Kingdom 210,954

3,255

Germany 176,161

3,512

Brazil 168,763

3,165

Canada 164,079

2,920

France 159,876

2,852

Australia 111,932

1,739

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, Jun 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 React sites · All Socket.io sites