FullCalendar vs Twitter

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

Top sites by authority

FullCalendar · Twitter · 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

FullCalendar · Twitter · share of sites in each country using one or the other

Japan 4,865

81,156

United States 27,661

53,575

United Kingdom 6,903

26,502

India 6,610

23,809

Canada 5,580

19,659

France 7,103

17,938

Spain 5,712

18,511

Germany 7,311

14,788

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 FullCalendar sites · All Twitter sites