Websites Powered by FullCalendar
138,500 websites tracked using FullCalendar (Widgets) · fullcalendar.io
FullCalendar is a embeddable widget that adds a feature to web pages. Its official site is fullcalendar.io. PoweredBy tracks the websites that use FullCalendar across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the widgets ecosystem.
Usage trend
20K
40K
60K
80K
Dec 2022
Nov 2023
Oct 2024
Sep 2025
Aug 2026
Domains observed using FullCalendar in each month's HTTP Archive crawl,
Dec 2022 to Aug 2026 · peak 73,406 in Oct 2024. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 2 s
INP 75 ms
CLS 0
TTFB 900 ms
Median site among 71,740 FullCalendar sites with Chrome UX data, p75 values, Aug 2026.
Top countries
United States
24,812
Germany
6,250
India
5,871
United Kingdom
5,746
France
5,712
Canada
4,905
Spain
4,837
Italy
4,630
Sites using FullCalendar by audience country, Chrome UX Report.
Top sites by authority
9+
8% · 31 of 372 sites
8+
6% · 486 of 7,677 sites
7+
3% · 1,389 of 45,712 sites
6+
2% · 2,291 of 110,136 sites
5+
1% · 3,672 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running FullCalendar in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using FullCalendar
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 301 | ncmec.org | 8.30/10 | 39 | 13 | Nov 2024 |
| 302 | rotary.org | 8.30/10 | 73,100 | 17,519 | Dec 2022 |
| 303 | socialmediaexaminer.com | 8.30/10 | 10,400 | 16,686 | Dec 2022 |
| 304 | up.pt | 8.30/10 | 2,100 | 1,076 | Dec 2022 |
| 305 | rp.pl | 8.30/10 | 1,600 | 3,558 | Jun 2025 |
| 306 | hokudai.ac.jp | 8.30/10 | 390 | 19 | Dec 2022 |
| 307 | service-now.com | 8.29/10 | - | - | Nov 2024 |
| 308 | rei.com | 8.29/10 | 3,140,000 | 836,055 | Jun 2023 |
| 309 | cuhk.edu.hk | 8.29/10 | 5,100 | 1,878 | Dec 2022 |
| 310 | nm.gov | 8.29/10 | 34,700 | 5,251 | Dec 2022 |
| 311 | concordia.ca | 8.29/10 | 44,000 | 27,103 | Dec 2022 |
| 312 | baylor.edu | 8.29/10 | 93,700 | 12,866 | Jul 2023 |
| 313 | elespanol.com | 8.28/10 | 27,000 | 97,909 | Feb 2025 |
| 314 | fourseasons.com | 8.28/10 | 1,335,800 | 224,708 | Apr 2025 |
| 315 | asme.org | 8.28/10 | 50,400 | 25,256 | Dec 2022 |
| 316 | uc3m.es | 8.28/10 | 6,600 | 5,330 | Feb 2025 |
| 317 | griffith.edu.au | 8.28/10 | 13,200 | 13,377 | Dec 2022 |
| 318 | tsukuba.ac.jp | 8.28/10 | 1,800 | 517 | Jun 2023 |
| 319 | kyushu-u.ac.jp | 8.28/10 | 680 | 731 | Jan 2023 |
| 320 | firebaseapp.com | 8.27/10 | - | - | Apr 2023 |
| 321 | capitalone.com | 8.27/10 | 7,178,700 | 848,197 | Mar 2023 |
| 322 | brpo.gov.pl | 8.27/10 | - | - | Dec 2022 |
| 323 | jcu.edu.au | 8.27/10 | 14,300 | 10,995 | Dec 2022 |
| 324 | vrt.be | 8.27/10 | 16,600 | 11,968 | Jan 2023 |
| 325 | upc.edu | 8.27/10 | 1,400 | 1,502 | Jun 2025 |
| 326 | auvergnerhonealpes.fr | 8.27/10 | 380 | 482 | Jul 2023 |
| 327 | inrae.fr | 8.27/10 | 6,700 | 2,485 | Mar 2023 |
| 328 | cas.cn | 8.26/10 | 450 | 64 | Jan 2025 |
| 329 | fau.de | 8.26/10 | 1,600 | 2,394 | Dec 2022 |
| 330 | unlv.edu | 8.26/10 | 319,800 | 86,297 | Dec 2022 |
| 331 | camera.it | 8.26/10 | 180 | 596 | May 2026 |
| 332 | dynatrace.com | 8.25/10 | 23,800 | 11,707 | Aug 2025 |
| 333 | confluent.io | 8.25/10 | 78,000 | 5,981 | Dec 2022 |
| 334 | bloomerang.co | 8.25/10 | 1,300 | 537 | Jan 2025 |
| 335 | naic.org | 8.25/10 | 250 | 50 | Jun 2025 |
| 336 | nahb.org | 8.25/10 | 97,900 | 32,327 | Dec 2022 |
| 337 | floridahealth.gov | 8.25/10 | 345,400 | 156,641 | Dec 2022 |
| 338 | unito.it | 8.25/10 | 630 | 627 | Sep 2025 |
| 339 | usask.ca | 8.25/10 | 13,500 | 3,000 | Dec 2022 |
| 340 | sciencespo.fr | 8.25/10 | 33,100 | 16,968 | Jun 2023 |
| 341 | ufrj.br | 8.25/10 | 320 | 114 | Dec 2022 |
| 342 | nagoya-u.ac.jp | 8.25/10 | 11 | 36 | Mar 2023 |
| 343 | pku.edu.cn | 8.24/10 | 37 | 21 | Jul 2023 |
| 344 | bp.com | 8.24/10 | 1,607,700 | 39,699 | Jul 2025 |
| 345 | ntu.edu.tw | 8.24/10 | 1,500 | 817 | Dec 2022 |
| 346 | umaryland.edu | 8.24/10 | 115,200 | 30,285 | Feb 2023 |
| 347 | du.edu | 8.24/10 | 99,500 | 41,585 | Aug 2024 |
| 348 | curtin.edu.au | 8.24/10 | 8,500 | 7,713 | Dec 2022 |
| 349 | gda.pl | 8.24/10 | - | - | Mar 2023 |
| 350 | uj.edu.pl | 8.24/10 | 360 | 132 | Apr 2024 |
| 351 | smu.edu.sg | 8.23/10 | 3,700 | 1,696 | Jun 2026 |
| 352 | groups.io | 8.23/10 | 43,000 | 76,648 | Dec 2022 |
| 353 | uclouvain.be | 8.23/10 | 2,600 | 1,113 | Dec 2022 |
| 354 | mayo.edu | 8.23/10 | 122,500 | 20,747 | Aug 2025 |
| 355 | regione.emilia-romagna.it | 8.23/10 | 290 | 307 | Jun 2024 |
| 356 | icc-cpi.int | 8.23/10 | 447,900 | 49,594 | Dec 2022 |
| 357 | arthritis.org | 8.23/10 | 579,100 | 157,926 | Dec 2022 |
| 358 | smu.edu | 8.23/10 | 377,800 | 71,712 | Dec 2022 |
| 359 | run.app | 8.22/10 | - | - | Jun 2024 |
| 360 | macmillan.org.uk | 8.22/10 | 144,600 | 48,757 | Dec 2022 |
| 361 | gov.hr | 8.22/10 | 1,600 | 883 | Feb 2024 |
| 362 | soton.ac.uk | 8.22/10 | - | - | Dec 2022 |
| 363 | utdallas.edu | 8.22/10 | 151,000 | 22,671 | Dec 2022 |
| 364 | ohsu.edu | 8.22/10 | 418,600 | 157,034 | Feb 2023 |
| 365 | uab.cat | 8.22/10 | 5,700 | 4,817 | Dec 2022 |
| 366 | upf.edu | 8.22/10 | 4,700 | 3,555 | Dec 2022 |
| 367 | usal.es | 8.22/10 | 3,200 | 1,130 | Dec 2022 |
| 368 | ufsc.br | 8.22/10 | 120 | 86 | Dec 2022 |
| 369 | wada-ama.org | 8.21/10 | 46,400 | 32,426 | Dec 2022 |
| 370 | cmha.ca | 8.21/10 | 2,700 | 2,121 | Dec 2022 |
| 371 | ucd.ie | 8.21/10 | 42,700 | 19,975 | Dec 2022 |
| 372 | ttu.edu | 8.21/10 | 118,300 | 21,348 | Dec 2022 |
| 373 | uba.ar | 8.21/10 | 670 | 586 | Dec 2022 |
| 374 | uc.pt | 8.21/10 | 3,500 | 1,118 | Dec 2022 |
| 375 | wpcomstaging.com | 8.20/10 | - | - | Nov 2023 |
| 376 | mef.gov.it | 8.20/10 | 670 | 768 | Dec 2022 |
| 377 | reading.ac.uk | 8.20/10 | 15,100 | 12,029 | Dec 2022 |
| 378 | ens-lyon.fr | 8.20/10 | 2,800 | 1,148 | Dec 2022 |
| 379 | rub.de | 8.19/10 | - | - | Jan 2023 |
| 380 | tu-dortmund.de | 8.19/10 | 870 | 647 | Dec 2022 |
| 381 | montana.edu | 8.19/10 | 405,100 | 105,688 | Dec 2022 |
| 382 | unl.pt | 8.19/10 | 480 | 245 | May 2023 |
| 383 | uam.es | 8.19/10 | 910 | 1,945 | Dec 2022 |
| 384 | saatchigallery.com | 8.18/10 | 4,800 | 1,840 | Oct 2023 |
| 385 | unige.it | 8.18/10 | 4,100 | 1,729 | May 2023 |
| 386 | uni-saarland.de | 8.18/10 | 2,200 | 1,673 | Mar 2024 |
| 387 | ntt-east.co.jp | 8.18/10 | 290 | 105 | May 2026 |
| 388 | mtu.edu | 8.17/10 | 369,900 | 68,922 | Jan 2023 |
| 389 | pref.shizuoka.jp | 8.17/10 | 240 | 103 | Dec 2022 |
| 390 | lublin.pl | 8.17/10 | 4 | 3 | Dec 2022 |
| 391 | hiroshima-u.ac.jp | 8.17/10 | 7,800 | 648 | Dec 2022 |
| 392 | gsk.com | 8.16/10 | 91,800 | 24,487 | Jul 2023 |
| 393 | state.nm.us | 8.16/10 | 250 | 117 | Dec 2022 |
| 394 | wfu.edu | 8.16/10 | 12,200 | 7,427 | Dec 2022 |
| 395 | pnnl.gov | 8.16/10 | 59,000 | 23,526 | Dec 2022 |
| 396 | kent.edu | 8.16/10 | 295,200 | 65,661 | Dec 2022 |
| 397 | univ-lorraine.fr | 8.16/10 | 510 | 500 | Dec 2022 |
| 398 | daihatsu.co.jp | 8.15/10 | 41 | 78 | Dec 2022 |
| 399 | government.bg | 8.15/10 | - | 3 | Dec 2022 |
| 400 | technion.ac.il | 8.15/10 | 1,300 | 301 | Jun 2025 |
Open Page Rank is the domain's authority score (0 to 10, from the open web link graph); the list is ordered by it and covers sites seen in recent crawls. Visits and keywords are estimated US organic search figures.
Download top 10,000 as CSV (zip) →
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