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 4,305

69,105

United States 24,812

48,295

United Kingdom 5,746

22,369

India 5,871

20,937

Canada 4,905

16,764

Spain 4,837

15,311

France 5,712

14,397

Germany 6,250

12,669

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, Aug 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