Websites Powered by FullCalendar
139,238 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
Nov 2024
Oct 2025
Sep 2026
Domains observed using FullCalendar in each month's HTTP Archive crawl,
Dec 2022 to Sep 2026 · peak 73,406 in Oct 2024. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.9 s
INP 75 ms
CLS 0
TTFB 900 ms
Median site among 73,086 FullCalendar sites with Chrome UX data, p75 values, Sep 2026.
Top countries
United States
24,683
Germany
6,420
United Kingdom
6,121
France
5,947
India
5,749
Spain
5,231
Canada
4,971
Italy
4,863
Sites using FullCalendar by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Arts and entertainment | 12.99% | 5,361 |
| Government | 1.84% | 148 |
| Non-profit and religious | 1.76% | 138 |
| Sports and fitness | 1.65% | 274 |
| Education | 1.25% | 624 |
| Pets and animals | 0.43% | 12 |
| Travel and hospitality | 0.43% | 317 |
| News and media | 0.41% | 172 |
| Professional services | 0.39% | 159 |
| Blogs and publishing | 0.24% | 60 |
| Healthcare | 0.19% | 207 |
| Finance and insurance | 0.18% | 30 |
Share of each industry's websites with a detected stack that use FullCalendar; industries come from what sites declare in their own structured data.
Top sites by authority
9+
8% · 28 of 372 sites
8+
6% · 471 of 7,677 sites
7+
3% · 1,358 of 45,712 sites
6+
2% · 2,255 of 110,136 sites
5+
1% · 3,593 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 |
|---|---|---|---|---|---|
| 1 | europa.eu | 9.57/10 | 42,200 | 31,835 | Dec 2022 |
| 2 | github.io | 9.43/10 | 1,800 | 1 | Mar 2023 |
| 3 | zoom.us | 9.29/10 | 681,100 | 57,492 | Dec 2022 |
| 4 | harvard.edu | 9.24/10 | 472,700 | 11,444 | Dec 2022 |
| 5 | ca.gov | 9.23/10 | 1,455,600 | 26,086 | Dec 2022 |
| 6 | stanford.edu | 9.19/10 | 3,302,700 | 5,160 | Jan 2023 |
| 7 | pages.dev | 9.14/10 | - | - | Aug 2026 |
| 8 | myshopify.com | 9.12/10 | - | - | Dec 2022 |
| 9 | xing.com | 9.12/10 | 1,000 | 7,689 | Dec 2025 |
| 10 | berkeley.edu | 9.10/10 | 166,700 | 4,721 | Dec 2022 |
| 11 | cornell.edu | 9.10/10 | 140,600 | 19,190 | Dec 2022 |
| 12 | canada.ca | 9.08/10 | 2,129,800 | 995,010 | Jul 2024 |
| 13 | mhlw.go.jp | 9.08/10 | 15,300 | 12,761 | Jan 2025 |
| 14 | loc.gov | 9.06/10 | 1,906,400 | 248,246 | Dec 2022 |
| 15 | vercel.app | 9.05/10 | - | - | Dec 2022 |
| 16 | house.gov | 9.05/10 | 752,000 | 103,932 | Dec 2022 |
| 17 | bizjournals.com | 9.04/10 | 803,700 | 750,107 | May 2023 |
| 18 | mayoclinic.org | 9.04/10 | 60,718,700 | 3,415,662 | Dec 2022 |
| 19 | ny.gov | 9.04/10 | 675,900 | 50,004 | Dec 2022 |
| 20 | census.gov | 9.04/10 | 1,531,200 | 178,036 | May 2026 |
| 21 | columbia.edu | 9.02/10 | 768,900 | 38,656 | Dec 2022 |
| 22 | netlify.app | 9.01/10 | 2 | 2 | Dec 2022 |
| 23 | psu.edu | 9.01/10 | 580,400 | 80,390 | Dec 2022 |
| 24 | umich.edu | 9.01/10 | 36,500 | 1,974 | Dec 2022 |
| 25 | yale.edu | 9.01/10 | 177,900 | 5,845 | Dec 2022 |
| 26 | uk.com | 9.00/10 | 2 | 12 | Dec 2022 |
| 27 | upenn.edu | 9.00/10 | 178,900 | 4,794 | Dec 2022 |
| 28 | dol.gov | 9.00/10 | 2,714,100 | 521,202 | Oct 2024 |
| 29 | va.gov | 8.99/10 | 3,906,000 | 720,623 | Dec 2022 |
| 30 | azureedge.net | 8.98/10 | - | - | Dec 2022 |
| 31 | princeton.edu | 8.98/10 | 244,600 | 46,551 | Dec 2022 |
| 32 | texas.gov | 8.98/10 | 917,200 | 38,560 | Dec 2022 |
| 33 | wisc.edu | 8.97/10 | 461,200 | 6,382 | Dec 2022 |
| 34 | webflow.io | 8.95/10 | 79 | 1 | Mar 2024 |
| 35 | nsw.gov.au | 8.95/10 | 75,300 | 73,181 | Dec 2022 |
| 36 | sakura.ne.jp | 8.95/10 | - | - | Dec 2022 |
| 37 | maine.gov | 8.93/10 | 1,108,600 | 366,560 | Jan 2024 |
| 38 | ucla.edu | 8.93/10 | 410,700 | 13,782 | Dec 2022 |
| 39 | jhu.edu | 8.93/10 | 177,300 | 5,821 | Mar 2023 |
| 40 | wa.gov | 8.93/10 | 719,700 | 7,869 | Dec 2022 |
| 41 | utexas.edu | 8.92/10 | 502,800 | 11,092 | Dec 2022 |
| 42 | si.edu | 8.92/10 | 1,458,100 | 152,619 | Sep 2023 |
| 43 | mlit.go.jp | 8.92/10 | 11,100 | 6,476 | Oct 2025 |
| 44 | shop-pro.jp | 8.91/10 | 17 | 9 | Dec 2022 |
| 45 | nyu.edu | 8.90/10 | 674,000 | 142,032 | Dec 2022 |
| 46 | nyc.gov | 8.90/10 | 3,946,700 | 716,970 | Mar 2026 |
| 47 | usc.edu | 8.89/10 | 362,800 | 14,354 | Dec 2022 |
| 48 | duke.edu | 8.88/10 | 194,300 | 1,396 | Jan 2023 |
| 49 | azurewebsites.net | 8.87/10 | - | - | Dec 2022 |
| 50 | appspot.com | 8.87/10 | - | - | Dec 2022 |
| 51 | cam.ac.uk | 8.87/10 | 208,200 | 35,354 | Dec 2022 |
| 52 | site.com | 8.86/10 | - | 1 | Dec 2022 |
| 53 | us.com | 8.86/10 | 32 | 8 | Dec 2022 |
| 54 | intel.com | 8.86/10 | 1,114,400 | 162,353 | Dec 2022 |
| 55 | purdue.edu | 8.86/10 | 746,900 | 132,133 | Dec 2022 |
| 56 | northwestern.edu | 8.86/10 | 193,400 | 45,922 | Dec 2022 |
| 57 | umd.edu | 8.85/10 | 253,200 | 15,103 | Dec 2022 |
| 58 | ufl.edu | 8.84/10 | 241,500 | 3,277 | Dec 2022 |
| 59 | ucsd.edu | 8.84/10 | 48,100 | 2,261 | Dec 2022 |
| 60 | ubc.ca | 8.84/10 | 14,500 | 2,813 | Dec 2022 |
| 61 | redhat.com | 8.83/10 | 288,100 | 74,088 | Dec 2022 |
| 62 | illinois.edu | 8.83/10 | 47,000 | 3,612 | Dec 2022 |
| 63 | ct.gov | 8.83/10 | 4,800 | 38 | Aug 2026 |
| 64 | ucdavis.edu | 8.83/10 | 381,100 | 81,485 | Oct 2023 |
| 65 | unc.edu | 8.83/10 | 341,300 | 24,562 | Dec 2022 |
| 66 | tokyo.lg.jp | 8.83/10 | - | - | Jun 2023 |
| 67 | asu.edu | 8.82/10 | 144,500 | 3,666 | Dec 2022 |
| 68 | maryland.gov | 8.82/10 | 173,200 | 7,155 | Apr 2026 |
| 69 | cnrs.fr | 8.82/10 | 4,300 | 2,992 | Dec 2022 |
| 70 | virginia.gov | 8.82/10 | 338,000 | 19,778 | May 2024 |
| 71 | it.com | 8.81/10 | - | - | Jan 2026 |
| 72 | utoronto.ca | 8.81/10 | 42,800 | 10,094 | Dec 2022 |
| 73 | fc2.com | 8.80/10 | 5,100 | 10 | Dec 2022 |
| 74 | utah.gov | 8.80/10 | 129,700 | 22,115 | Dec 2022 |
| 75 | in.gov | 8.80/10 | 3,047,100 | 832,670 | Dec 2022 |
| 76 | hopkinsmedicine.org | 8.79/10 | 9,578,600 | 1,098,393 | Dec 2022 |
| 77 | uzh.ch | 8.79/10 | 7,800 | 3,263 | Dec 2022 |
| 78 | mn.gov | 8.78/10 | 964,900 | 239,950 | Dec 2022 |
| 79 | georgetown.edu | 8.78/10 | 136,900 | 25,266 | Dec 2022 |
| 80 | msu.edu | 8.78/10 | 149,500 | 2,186 | Dec 2022 |
| 81 | mext.go.jp | 8.78/10 | 1,300 | 1,556 | Dec 2022 |
| 82 | odoo.com | 8.77/10 | 63,000 | 27,307 | Dec 2022 |
| 83 | wpenginepowered.com | 8.77/10 | - | - | Aug 2023 |
| 84 | eu.com | 8.77/10 | - | - | Oct 2023 |
| 85 | gouv.qc.ca | 8.77/10 | - | - | Dec 2022 |
| 86 | bu.edu | 8.77/10 | 804,600 | 234,428 | Feb 2023 |
| 87 | web.app | 8.76/10 | - | - | Dec 2022 |
| 88 | uci.edu | 8.76/10 | 94,600 | 9,503 | Dec 2022 |
| 89 | tamu.edu | 8.76/10 | 349,600 | 9,431 | Dec 2022 |
| 90 | amnesty.org | 8.75/10 | 316,300 | 65,505 | Dec 2022 |
| 91 | rutgers.edu | 8.75/10 | 146,600 | 28,567 | Dec 2022 |
| 92 | herokuapp.com | 8.74/10 | - | - | Dec 2022 |
| 93 | webex.com | 8.74/10 | 79,100 | 38,804 | Jun 2024 |
| 94 | ucl.ac.uk | 8.74/10 | 154,800 | 93,062 | Dec 2022 |
| 95 | epfl.ch | 8.74/10 | 12,900 | 6,546 | Oct 2023 |
| 96 | brown.edu | 8.73/10 | 376,500 | 23,950 | Feb 2023 |
| 97 | illinois.gov | 8.73/10 | 521,900 | 65,410 | Dec 2022 |
| 98 | aruba.it | 8.72/10 | 1,000 | 466 | Aug 2026 |
| 99 | itu.int | 8.71/10 | 49,700 | 17,914 | Dec 2022 |
| 100 | ikea.com | 8.71/10 | 10,029,900 | 1,215,786 | Dec 2022 |
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) →
Columns: domain, Open Page Rank, first seen, last seen, industry (from the site's own structured data, blank when none).
Compare FullCalendar
- FullCalendar vs Slider Revolution
- FullCalendar vs Facebook
- FullCalendar vs Twitter
- FullCalendar vs Wheelio
- FullCalendar vs AddToAny