Facebook vs FullCalendar

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

Detections for Facebook end in May 2022. The fingerprint catalog behind our crawls no longer carries that technology as its own entry, usually because it was retired or split into more specific ones, so its figure is the last recorded and is not directly comparable with a currently tracked technology.

Top sites by authority

Facebook · FullCalendar · 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

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

United States 79,260

24,812

United Kingdom 38,807

5,746

India 35,866

5,871

Germany 33,019

6,250

Canada 33,705

4,905

Brazil 30,417

4,169

France 27,895

5,712

Spain 26,926

4,837

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 Facebook sites · All FullCalendar sites