Websites Powered by Immutable.js
15,524 websites tracked using Immutable.js (JavaScript libraries) · facebook.github.io
Immutable.js is a JavaScript library used to add functionality to web pages. Its official site is facebook.github.io. PoweredBy tracks the websites that use Immutable.js across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the javascript libraries ecosystem.
Usage trend
2.5K
5K
7.5K
10K
Jun 2018
Jun 2020
Oct 2022
Sep 2024
Sep 2026
Domains observed using Immutable.js in each month's HTTP Archive crawl,
Jun 2018 to Sep 2026 · peak 9,925 in Dec 2020. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.6 s
INP 75 ms
CLS 0
TTFB 600 ms
Median site among 1,888 Immutable.js sites with Chrome UX data, p75 values, Sep 2026.
Top countries
United States
1,038
Canada
560
United Kingdom
182
India
152
Portugal
140
Germany
133
Spain
124
France
120
Sites using Immutable.js by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Automotive | 0.40% | 278 |
| Sports and fitness | 0.37% | 61 |
| Real estate | <0.01% | 2 |
| Education | <0.01% | 1 |
| Software and apps | <0.01% | 2 |
| Retail | <0.01% | 5 |
| Restaurants and food | <0.01% | 1 |
Share of each industry's websites with a detected stack that use Immutable.js; industries come from what sites declare in their own structured data.
Top sites by authority
9+
0% · 0 of 372 sites
8+
<1% · 7 of 7,677 sites
7+
<1% · 16 of 45,712 sites
6+
<1% · 24 of 110,136 sites
5+
<1% · 35 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running Immutable.js in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using Immutable.js
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 101 | myheritage.lv | 3.38/10 | - | - | Dec 2019 |
| 102 | myheritage.com.hr | 3.37/10 | - | - | Dec 2019 |
| 103 | myheritage.mk | 3.36/10 | - | - | Dec 2019 |
| 104 | myheritage.ba | 3.36/10 | - | - | Feb 2026 |
| 105 | myheritage.al | 3.36/10 | - | - | Feb 2026 |
| 106 | myheritage.co.kr | 3.35/10 | - | - | Dec 2019 |
| 107 | myheritage.ge | 3.35/10 | - | - | Feb 2026 |
| 108 | coffeepaste.com | 3.34/10 | - | - | Dec 2022 |
| 109 | overon.es | 3.33/10 | - | - | Dec 2025 |
| 110 | myheritage.ee | 3.30/10 | - | - | Dec 2019 |
| 111 | 23milhas.pt | 3.30/10 | 5 | 2 | May 2020 |
| 112 | saocarlos.pt | 3.29/10 | - | - | Dec 2024 |
| 113 | myheritage.com.mt | 3.28/10 | - | - | Feb 2026 |
| 114 | r2design.pt | 3.26/10 | - | - | Aug 2022 |
| 115 | agenda-porto.pt | 3.25/10 | 91 | 200 | Jan 2024 |
| 116 | dagensmenu.dk | 3.21/10 | - | - | Jan 2019 |
| 117 | festivalddd.com | 3.21/10 | - | - | Jul 2019 |
| 118 | myheritage.cn | 3.20/10 | - | - | Dec 2019 |
| 119 | vitalis.pt | 3.20/10 | - | - | Jan 2021 |
| 120 | myheritagelibraryedition.com | 3.13/10 | - | - | Feb 2025 |
| 121 | unirmobilidade.pt | 3.13/10 | - | - | Dec 2023 |
| 122 | okna-hned.cz | 3.00/10 | - | - | Sep 2026 |
| 123 | ojm.pt | 3.00/10 | - | - | Jul 2021 |
| 124 | americanexpress.nl | 2.98/10 | - | - | Jul 2023 |
| 125 | peakretreats.co.uk | 2.98/10 | - | - | Sep 2019 |
| 126 | baglass.com | 2.95/10 | 78 | 26 | Jul 2025 |
| 127 | festivalaolargo.pt | 2.87/10 | - | - | Jun 2024 |
| 128 | casadamemoria.pt | 2.86/10 | - | - | Aug 2022 |
| 129 | americanexpress.com.mx | 2.85/10 | - | - | May 2023 |
| 130 | cristinaguerra.com | 2.85/10 | - | - | Apr 2022 |
| 131 | reservepadel.com | 2.78/10 | - | - | Jul 2023 |
| 132 | playthefort.com | 2.77/10 | - | - | Feb 2025 |
| 133 | routeasy.com.br | 2.75/10 | - | - | Jan 2019 |
| 134 | medicaltech.it | 2.71/10 | - | - | Nov 2023 |
| 135 | payby.com | 2.69/10 | - | - | Aug 2022 |
| 136 | festivaltodos.com | 2.68/10 | - | - | Oct 2020 |
| 137 | guimaraesjazz.pt | 2.68/10 | - | - | Jan 2021 |
| 138 | mylight-systems.com | 2.66/10 | - | - | Oct 2019 |
| 139 | vodafoneparedesdecoura.com | 2.65/10 | - | - | Jun 2023 |
| 140 | americanexpress.com.sg | 2.65/10 | - | - | Jun 2023 |
| 141 | ambellahome.com | 2.63/10 | 1,000 | 324 | Apr 2019 |
| 142 | buholegal.com | 2.62/10 | - | - | Nov 2025 |
| 143 | ballers-us.com | 2.61/10 | 490 | 532 | Oct 2025 |
| 144 | yorkdaledufferinmazda.ca | 2.60/10 | - | - | Nov 2021 |
| 145 | xn--testogprver-ngb.dk | 2.58/10 | - | - | Feb 2020 |
| 146 | whypaymore.co.kr | 2.58/10 | - | - | Aug 2018 |
| 147 | americanexpress.es | 2.58/10 | - | - | Sep 2023 |
| 148 | masslab.pt | 2.53/10 | - | - | Apr 2024 |
| 149 | mediaprous.tv | 2.49/10 | - | - | Jan 2025 |
| 150 | sleepbox.com | 2.48/10 | - | - | Jan 2021 |
| 151 | modernhistoryhome.com | 2.47/10 | - | - | Sep 2020 |
| 152 | dooqdetails.com | 2.40/10 | - | - | Feb 2024 |
| 153 | sbsr.fm | 2.39/10 | - | - | Mar 2019 |
| 154 | culturaemexpansao.pt | 2.39/10 | - | - | Jun 2021 |
| 155 | ccsk12.com | 2.32/10 | - | - | Oct 2024 |
| 156 | robbstucky.com | 2.29/10 | - | - | Jan 2019 |
| 157 | carvalhoaraujo.com | 2.27/10 | - | - | Oct 2021 |
| 158 | guertelnightwalk.at | 2.26/10 | - | - | Oct 2021 |
| 159 | restareahistory.org | 2.14/10 | - | - | Mar 2024 |
| 160 | umapedranosapato.com | 2.14/10 | - | - | Jun 2023 |
| 161 | vegait.rs | 2.14/10 | - | - | Jul 2024 |
| 162 | missionlocaledesgraves.fr | 2.13/10 | - | - | Aug 2022 |
| 163 | americanexpress.com.hk | 2.12/10 | - | - | Jun 2023 |
| 164 | robbinsvillepicklehouse.com | 2.11/10 | - | - | Nov 2024 |
| 165 | hfa.pt | 2.09/10 | - | - | May 2024 |
| 166 | comidadebebe.pt | 2.08/10 | - | - | Feb 2024 |
| 167 | aguadaspedras.com | 2.08/10 | 74 | 25 | Sep 2020 |
| 168 | mercedes-benz-vancouver.ca | 2.06/10 | - | - | Jun 2021 |
| 169 | imperial.pt | 1.98/10 | - | - | Apr 2024 |
| 170 | mediaproexhibitions.com | 1.92/10 | - | - | Mar 2026 |
| 171 | mambounlimitedideas.com | 1.92/10 | - | - | Aug 2021 |
| 172 | eversheds-sutherland.pt | 1.88/10 | - | - | Nov 2021 |
| 173 | rallypickleball.com | 1.88/10 | - | - | Jul 2023 |
| 174 | skoola.pt | 1.87/10 | - | - | Oct 2021 |
| 175 | hmborges.com | 1.87/10 | - | - | Aug 2024 |
| 176 | niseiloungechicago.com | 1.85/10 | - | - | Aug 2022 |
| 177 | nacional.pt | 1.83/10 | - | - | Jul 2024 |
| 178 | nunobaltazar.com | 1.82/10 | - | - | Dec 2021 |
| 179 | aoya-hk.com | 1.82/10 | 3 | 9 | Jan 2026 |
| 180 | taepku.com | 1.81/10 | - | - | Sep 2023 |
| 181 | pickleballhall.com | 1.79/10 | - | - | Jul 2024 |
| 182 | pickleplex.org | 1.79/10 | - | - | Oct 2025 |
| 183 | bibliotecasdoporto.pt | 1.78/10 | 1 | 1 | Sep 2024 |
| 184 | padeln9ne.com | 1.76/10 | - | - | Jun 2025 |
| 185 | luxuryestates.com | 1.70/10 | - | - | Jun 2022 |
| 186 | astonmartinvancouver.ca | 1.68/10 | 140 | 133 | Jul 2021 |
| 187 | groupeparkavenue.com | 1.68/10 | - | - | Feb 2024 |
| 188 | theflyingpickle.com | 1.67/10 | - | - | Jun 2023 |
| 189 | padelup.club | 1.66/10 | - | - | Sep 2024 |
| 190 | ltpchs.com | 1.63/10 | - | - | Apr 2025 |
| 191 | allensapplianceservice.com | 1.61/10 | 43 | 33 | Aug 2022 |
| 192 | sanctuarypublishers.com | 1.61/10 | - | - | May 2026 |
| 193 | mercedes-benz-countryhills.ca | 1.60/10 | - | - | Mar 2020 |
| 194 | sklepwykladziny.pl | 1.59/10 | - | - | Mar 2022 |
| 195 | theladykilligrew.com | 1.57/10 | - | - | Sep 2020 |
| 196 | americanlegion.org | 1.57/10 | 670 | 36 | May 2019 |
| 197 | norhillrealty.com | 1.56/10 | - | - | Apr 2023 |
| 198 | orquestraxxi.pt | 1.56/10 | - | - | Jul 2025 |
| 199 | goodbounce.com | 1.54/10 | - | - | Oct 2024 |
| 200 | hamelchevrolet.ca | 1.54/10 | - | - | Feb 2020 |
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).
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