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

United States 24,683

47,945

Japan 4,257

67,316

United Kingdom 6,121

22,548

India 5,749

20,426

Canada 4,971

16,921

Spain 5,231

16,227

France 5,947

14,509

Germany 6,420

12,365

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 FullCalendar sites · All Twitter sites