Facebook vs FullCalendar
Head-to-head usage across the sites we track.
Top sites by authority
Facebook · FullCalendar · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
32
Open Page Rank 8+
0
507
Open Page Rank 7+
0
1,437
Open Page Rank 6+
0
2,348
Open Page Rank 5+
0
3,755
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
90,322
27,661
United Kingdom
43,945
6,903
India
41,142
6,610
Germany
38,133
7,311
Canada
39,072
5,580
France
33,742
7,103
Brazil
33,915
4,589
Spain
31,059
5,712
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | FullCalendar | |
|---|---|---|
| LCP | 1.9 s | 2 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 900 ms |
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.
Facebook to FullCalendar
| Domain | When |
|---|---|
| colaistebhailechlair.com | Mar 2026 |