JavaScript libraries
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Underscore.js is a JavaScript library which provides utility functions for common programming tasks. It is comparable to features provided by Prototype.js and the Ruby language, but opts for a functional programming design instead of extending object prototypes.
Disclaimer: The data used in this report is collected from the current VersionDB release (February 2026) containing a total of 12,727,168 domains. All statistics reflect this dataset and do not claim to represent all websites globally.
Underscore.js Complementary Technologies
Technologies frequently found with Underscore.js.
Live Underscore.js Sites
491.8k
Complementary Tech
1.8k
Most Frequent Complementary Tech
Websites Using Underscore.js
An unordered, non-ranked list generated from observed technology data.
| Domain | Server Location | ASN | Crawl Date |
|---|---|---|---|
| iabilet.ro | Unknown | Cloudflare, Inc. | February 13, 2026 |
| eusp.org | 🇷🇺 Russia | European University at Saint Petersburg | February 13, 2026 |
| cotia.sp.gov.br | 🇧🇷 Brazil | Hostinger International Limited | February 13, 2026 |
| northmemorial.com | 🇺🇸 United States | Fastly, Inc. | February 13, 2026 |
| mrbrewstaphouse.com | 🇺🇸 United States | Amazon.com, Inc. | February 13, 2026 |
| goldenpapercup.com | 🇺🇸 United States | Amazon.com, Inc. | February 8, 2026 |
| chainweaver.org.cn | 🇨🇳 China | IDC, China Telecommunications Corporation | February 8, 2026 |
| roter-flitzer.de | 🇫🇷 France | Host Europe GmbH | February 8, 2026 |
| electricgatesuk.net | 🇬🇧 United Kingdom | Krystal Hosting Ltd | February 8, 2026 |
| suaempresanorumocerto.com.br | 🇺🇸 United States | Hostinger International Limited | February 8, 2026 |
| willa-astoria.pl | 🇵🇱 Poland | dhosting.pl Sp. z o.o. | February 8, 2026 |
| taox-isehara.jp | 🇯🇵 Japan | SAKURA Internet Inc. | February 6, 2026 |
| rti-cs.com | 🇺🇸 United States | Aptum Technologies | February 6, 2026 |
| itsglobalrelo.com | 🇺🇸 United States | DigitalOcean, LLC | February 6, 2026 |
| dandelion.sk | 🇸🇰 Slovakia | WebSupport s.r.o. | February 6, 2026 |
| response-information.com | 🇺🇸 United States | Amazon.com, Inc. | February 6, 2026 |
| novareha.si | 🇩🇪 Germany | IONOS SE | February 6, 2026 |
| 2ai-architecte.fr | 🇫🇷 France | Scaleway S.a.s. | February 6, 2026 |
| yubasciencefoundation.org | 🇺🇸 United States | PrivateSystems Networks | February 6, 2026 |
| stateofgaming.fr | 🇫🇷 France | O2switch SAS | February 6, 2026 |
| zsysdisplay.com | 🇺🇸 United States | Hostinger International Limited | February 6, 2026 |
| practiceplusgroup.com | 🇬🇧 United Kingdom | Claranet Limited | February 6, 2026 |
| riversidetownhomesaustin.com | 🇺🇸 United States | Amazon.com, Inc. | February 6, 2026 |
| hagaicohen.com | 🇳🇱 Netherlands | Hostinger International Limited | February 6, 2026 |
| chartreuselounge.com | 🇺🇸 United States | Fastly, Inc. | February 6, 2026 |
| asmconsult.be | 🇧🇪 Belgium | Combell NV | February 6, 2026 |
| myheromindset.com | Unknown | Cloudflare, Inc. | February 6, 2026 |
| prairiesafrica.org | 🇺🇸 United States | OrangeHost | February 6, 2026 |
| loveflowers24.am | 🇷🇺 Russia | Jsc timeweb | February 6, 2026 |
| boondocks.be | Unknown | Cloudflare, Inc. | February 6, 2026 |
| fivestarpower.com | 🇩🇪 Germany | Tencent Building, Kejizhongyi Avenue | February 6, 2026 |
| dmcimportgroup.com | 🇺🇸 United States | GoDaddy.com, LLC | February 6, 2026 |
| attadvantage.com | Unknown | Cloudflare, Inc. | February 6, 2026 |
| ecycleprosinc.com | 🇺🇸 United States | Cloudflare London, LLC | February 6, 2026 |
| ergotherapie-kreuztal.de | 🇩🇪 Germany | Strato GmbH | February 6, 2026 |
| sjppisos.com | 🇺🇸 United States | GoDaddy.com, LLC | February 6, 2026 |
| mabo.moda | 🇺🇸 United States | IONOS SE | February 6, 2026 |
| couplescounselingboston.org | 🇺🇸 United States | PrivateSystems Networks | February 6, 2026 |
| pklfreeze.com | 🇺🇸 United States | Google LLC | February 6, 2026 |
| thegreydoor.co.uk | 🇬🇧 United Kingdom | IONOS SE | February 6, 2026 |
| waterloolimos.com | 🇺🇸 United States | Aptum Technologies | February 6, 2026 |
| rahoonnewcastle.ie | 🇬🇧 United Kingdom | Akamai Connected Cloud | February 6, 2026 |
| stealthtacticalinc.com | 🇺🇸 United States | Cloudflare London, LLC | February 6, 2026 |
| visual-artists.org | 🇺🇸 United States | Sucuri | February 6, 2026 |
| supdas.com | 🇺🇸 United States | Hostinger International Limited | February 6, 2026 |
| starkebaphuelva.es | 🇩🇪 Germany | IONOS SE | February 6, 2026 |
| sassycats.nl | 🇩🇪 Germany | Strato GmbH | February 6, 2026 |
| zfhyw.com | 🇸🇬 Singapore | Tencent Building, Kejizhongyi Avenue | February 6, 2026 |
| hawksters.com | 🇺🇸 United States | Hostinger International Limited | February 6, 2026 |
| enerjiverimliligikongresi.org | 🇫🇷 France | Hostinger International Limited | February 6, 2026 |
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Buy Now — $199.95 USDTop Underscore.js Identifiers
Who is using Underscore.js and where.
Countries
Top 5 most detected countries for Underscore.js
ASNs
Top 5 most detected ASNs for Underscore.js
Languages
Top 5 most detected Languages for Underscore.js
TLDs
Top 5 most detected TLDs for Underscore.js
Most Frequent Underscore.js Identifiers and Complementary Tech
Most frequently encountered identifiers for Underscore.js and its complementary technologies.
| Technology | Sites |
|---|---|
| jQuery | 488,394 |
| PHP | 478,519 |
| MySQL | 470,456 |
| WordPress | 470,115 |
| jQuery Migrate | 435,888 |
| WooCommerce | 223,675 |
| Elementor | 215,465 |
| Yoast SEO | 189,221 |
| Google Analytics | 178,335 |
| Contact Form 7 | 170,505 |
| HTTP/3 | 170,033 |
| Apache HTTP Server | 155,648 |
| imagesLoaded | 144,636 |
| Bootstrap | 136,295 |
| Nginx | 106,596 |
| Swiper | 104,910 |
| LiteSpeed | 104,060 |
| Magnific Popup | 93,228 |
| Site Kit | 89,177 |
| reCAPTCHA | 87,989 |
| Cloudflare | 87,924 |
| Slider Revolution | 86,147 |
| WordPress Block Editor | 83,521 |
| Google Tag Manager | 79,312 |
| Slick | 79,015 |
| Font Awesome | 73,615 |
| Lightbox | 72,756 |
| OWL Carousel | 70,048 |
| HSTS | 68,721 |
| Hostinger | 63,664 |
| LiteSpeed Cache | 62,151 |
| wpBakery | 60,288 |
| Backbone.js | 60,262 |
| WPForms | 57,803 |
| Modernizr | 52,653 |
| FitVids.JS | 43,707 |
| jQuery UI | 43,631 |
| The Events Calendar | 41,680 |
| All in One SEO | 38,941 |
| parallax.js | 34,620 |
| Moment.js | 33,485 |
| Gravatar | 33,343 |
| Cloudflare Browser Insights | 33,049 |
| Cloudflare Bot Management | 32,911 |
| Infinite Scroll | 31,749 |
| All in One SEO Pack | 31,639 |
| WP Rocket | 30,814 |
| CookieYes | 30,645 |
| Mailcheck | 29,706 |
| MailChimp | 28,064 |
| Language | Sites |
|---|---|
| English | 237,430 |
| German | 50,499 |
| French | 44,098 |
| Spanish | 34,735 |
| Latin | 28,802 |
| Italian | 23,022 |
| Dutch | 19,016 |
| Portuguese | 14,503 |
| Tagalog | 12,570 |
| Russian | 11,956 |
| Polish | 11,276 |
| Japanese | 8,585 |
| Afrikaans | 8,367 |
| Danish | 8,330 |
| Swedish | 7,403 |
| Esperanto | 6,964 |
| Persian | 6,853 |
| Catalan | 6,408 |
| Yoruba | 6,008 |
| Welsh | 5,980 |
| Norwegian Nynorsk | 5,831 |
| Chinese | 5,777 |
| Turkish | 5,176 |
| Vietnamese | 5,014 |
| Czech | 4,884 |
| Romanian | 4,806 |
| Norwegian Bokmål | 4,392 |
| Swahili | 4,292 |
| Finnish | 4,168 |
| Tsonga | 4,077 |
| Tswana | 3,839 |
| Southern Sotho | 3,788 |
| Indonesian | 3,652 |
| Slovak | 3,530 |
| Hungarian | 3,357 |
| Shona | 3,070 |
| Lithuanian | 3,024 |
| Xhosa | 2,653 |
| Estonian | 2,641 |
| Croatian | 2,449 |
| Basque | 2,381 |
| Arabic | 2,308 |
| Albanian | 2,218 |
| Malay | 2,155 |
| Greek | 2,115 |
| Bosnian | 2,041 |
| Hebrew | 1,920 |
| Korean | 1,778 |
| Bulgarian | 1,613 |
| Slovenian | 1,388 |
| ASN | Sites |
|---|---|
| Hostinger International Limited | 61,763 |
| Cloudflare, Inc. | 44,987 |
| IONOS SE | 25,994 |
| OVH SAS | 24,679 |
| Cloudflare London, LLC | 21,662 |
| Hetzner Online GmbH | 18,470 |
| GoDaddy.com, LLC | 15,567 |
| Amazon.com, Inc. | 14,997 |
| Aruba S.p.A. | 8,747 |
| Namecheap, Inc. | 8,481 |
| Strato GmbH | 7,623 |
| Neue Medien Muennich GmbH | 7,300 |
| Google LLC | 6,928 |
| DigitalOcean, LLC | 6,843 |
| New Dream Network, LLC | 6,164 |
| Host Europe GmbH | 5,862 |
| O2switch SAS | 5,594 |
| Combell NV | 4,747 |
| InMotion Hosting, Inc. | 4,084 |
| Sucuri | 3,982 |
| Fastly, Inc. | 3,879 |
| One.com A/S | 3,747 |
| Beget LLC | 3,715 |
| WebSupport s.r.o. | 3,360 |
| Infomaniak Network SA | 3,310 |
| Cyber_Folks S.A. | 3,170 |
| The Constant Company, LLC | 3,120 |
| Xserver Inc. | 3,092 |
| team.blue Denmark A/S | 2,764 |
| Aptum Technologies | 2,757 |
| Akamai Connected Cloud | 2,602 |
| DinaHosting S.L. | 2,601 |
| WHG Hosting Services Ltd | 2,576 |
| SAKURA Internet Inc. | 2,575 |
| Liquid Web, L.L.C | 2,418 |
| GMO Internet Group, Inc. | 2,272 |
| Contabo GmbH | 2,252 |
| Domain names registrar REG.RU, Ltd | 2,236 |
| netcup GmbH | 2,169 |
| Jsc timeweb | 2,013 |
| Microsoft Corporation | 1,884 |
| Signet B.V. | 1,733 |
| dogado GmbH | 1,583 |
| Mittwald CM Service GmbH & Co. KG | 1,572 |
| Hostpoint AG | 1,528 |
| home.pl sp. z o.o. | 1,486 |
| Loopia AB | 1,417 |
| xneelo | 1,337 |
| WEDOS Internet, a.s. | 1,309 |
| VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | 1,273 |
| TLD | Sites |
|---|---|
| com | 216,352 |
| de | 31,897 |
| org | 25,006 |
| fr | 15,304 |
| it | 11,778 |
| co.uk | 11,008 |
| nl | 10,397 |
| net | 9,181 |
| ru | 8,814 |
| pl | 7,475 |
| com.au | 6,079 |
| es | 5,968 |
| com.br | 5,955 |
| ca | 5,236 |
| ch | 5,232 |
| eu | 4,279 |
| in | 4,175 |
| dk | 3,887 |
| be | 3,790 |
| se | 3,780 |
| cz | 3,584 |
| at | 3,214 |
| gr | 2,943 |
| ir | 2,642 |
| hu | 2,569 |
| sk | 2,355 |
| fi | 2,247 |
| ro | 2,185 |
| co.za | 2,170 |
| jp | 2,080 |
| no | 2,010 |
| cl | 1,942 |
| co | 1,764 |
| vn | 1,747 |
| lt | 1,737 |
| ee | 1,621 |
| com.ar | 1,599 |
| info | 1,576 |
| co.il | 1,438 |
| shop | 1,244 |
| org.uk | 1,176 |
| co.nz | 1,163 |
| pt | 1,157 |
| co.jp | 1,133 |
| ie | 990 |
| com.tr | 974 |
| us | 817 |
| com.mx | 812 |
| rs | 768 |
| io | 735 |
| Country | Sites |
|---|---|
| 🇺🇸 United States | 146,982 |
| 🇩🇪 Germany | 65,122 |
| 🇫🇷 France | 40,952 |
| 🇬🇧 United Kingdom | 14,990 |
| 🇳🇱 Netherlands | 13,761 |
| 🇮🇹 Italy | 13,625 |
| 🇮🇳 India | 11,140 |
| 🇷🇺 Russia | 11,069 |
| 🇯🇵 Japan | 9,940 |
| 🇪🇸 Spain | 9,512 |
| 🇵🇱 Poland | 8,996 |
| 🇨🇭 Switzerland | 6,752 |
| 🇸🇬 Singapore | 6,708 |
| 🇩🇰 Denmark | 6,595 |
| 🇨🇦 Canada | 5,846 |
| 🇮🇷 Iran | 5,493 |
| 🇧🇷 Brazil | 4,954 |
| 🇦🇺 Australia | 4,780 |
| 🇫🇮 Finland | 4,587 |
| 🇻🇳 Vietnam | 4,158 |
| 🇸🇪 Sweden | 3,333 |
| 🇸🇰 Slovakia | 3,315 |
| 🇨🇿 Czech Republic | 3,232 |
| 🇹🇷 Turkey | 2,949 |
| 🇧🇪 Belgium | 2,884 |
| 🇱🇹 Lithuania | 2,604 |
| 🇮🇩 Indonesia | 2,409 |
| 🇿🇦 South Africa | 2,320 |
| 🇭🇺 Hungary | 2,154 |
| 🇪🇪 Estonia | 2,114 |
| 🇮🇪 Ireland | 1,914 |
| 🇷🇴 Romania | 1,577 |
| 🇧🇬 Bulgaria | 1,502 |
| 🇭🇰 Hong Kong | 1,481 |
| 🇳🇴 Norway | 1,261 |
| 🇰🇷 South Korea | 1,160 |
| 🇦🇹 Austria | 1,155 |
| 🇹🇭 Thailand | 1,048 |
| 🇮🇱 Israel | 1,042 |
| 🇵🇹 Portugal | 963 |
| 🇲🇾 Malaysia | 959 |
| 🇨🇱 Chile | 925 |
| 🇦🇷 Argentina | 884 |
| 🇬🇷 Greece | 827 |
| 🇨🇳 China | 779 |
| 🇹🇼 Taiwan | 677 |
| 🇺🇦 Ukraine | 644 |
| 🇳🇿 New Zealand | 584 |
| 🇸🇮 Slovenia | 519 |
| 🇷🇸 Serbia | 406 |
| 🇧🇩 Bangladesh | 342 |
| 🇭🇷 Croatia | 299 |
| 🇰🇿 Kazakhstan | 265 |
| 🇧🇾 Belarus | 259 |
| 🇮🇸 Iceland | 257 |
| 🇲🇽 Mexico | 216 |
| 🇰🇪 Kenya | 186 |
| 🇱🇻 Latvia | 184 |
| 🇱🇺 Luxembourg | 171 |
| 🇲🇩 Moldova | 117 |
| 🇦🇪 United Arab Emirates | 115 |
| 🇬🇪 Georgia | 86 |
| 🇵🇪 Peru | 81 |
| 🇸🇨 Seychelles | 76 |
| 🇨🇴 Colombia | 69 |
| 🇧🇦 Bosnia and Herzegovina | 65 |
| 🇳🇵 Nepal | 53 |
| 🇹🇳 Tunisia | 50 |
| 🇺🇿 Uzbekistan | 48 |
| 🇲🇰 North Macedonia | 46 |
| 🇨🇾 Cyprus | 45 |
| 🇪🇨 Ecuador | 44 |
| 🇺🇾 Uruguay | 39 |
| 🇸🇦 Saudi Arabia | 34 |
| 🇲🇳 Mongolia | 32 |
| 🇵🇰 Pakistan | 31 |
| 🇩🇿 Algeria | 30 |
| 🇧🇭 Bahrain | 22 |
| 🇨🇷 Costa Rica | 22 |
| 🇵🇭 Philippines | 21 |
| 🇦🇱 Albania | 21 |
| 🇵🇦 Panama | 21 |
| 🇳🇬 Nigeria | 19 |
| 🇲🇲 Myanmar | 19 |
| 🇱🇰 Sri Lanka | 18 |
| 🇰🇬 Kyrgyzstan | 17 |
| 🇵🇾 Paraguay | 16 |
| 🇪🇹 Ethiopia | 15 |
| 🇧🇴 Bolivia | 15 |
| 🇱🇾 Libya | 13 |
| 🇻🇪 Venezuela | 12 |
| 🇦🇲 Armenia | 12 |
| 🇯🇴 Jordan | 12 |
| 🇬🇭 Ghana | 12 |
| 🇦🇿 Azerbaijan | 11 |
| 🇳🇨 New Caledonia | 10 |
| 🇸🇷 Suriname | 10 |
| 🇨🇺 Cuba | 10 |
| 🇲🇿 Mozambique | 10 |
| 🇿🇼 Zimbabwe | 9 |
| 🇵🇸 Palestine | 9 |
| 🇷🇼 Rwanda | 8 |
| 🇺🇬 Uganda | 8 |
| 🇨🇮 Côte d'Ivoire | 8 |
| 🇹🇯 Tajikistan | 8 |
| 🇲🇦 Morocco | 8 |
| 🇴🇲 Oman | 8 |
| 🇸🇳 Senegal | 7 |
| 🇪🇬 Egypt | 7 |
| 🇹🇿 Tanzania | 7 |
| 🇿🇲 Zambia | 7 |
| 🇳🇦 Namibia | 6 |
| 🇬🇹 Guatemala | 6 |
| 🇧🇹 Bhutan | 6 |
| 🇨🇲 Cameroon | 6 |
| 🇸🇲 San Marino | 6 |
| 🇸🇾 Syria | 5 |
| 🇱🇮 Liechtenstein | 5 |
| 🇶🇦 Qatar | 5 |
| 🇱🇧 Lebanon | 5 |
| 🇰🇭 Cambodia | 5 |
| 🇲🇬 Madagascar | 4 |
| 🇦🇴 Angola | 4 |
| 🇧🇸 Bahamas | 4 |
| 🇹🇲 Turkmenistan | 4 |
| 🇱🇦 Laos | 4 |
| 🇲🇴 Macau | 4 |
| 🇹🇹 Trinidad and Tobago | 4 |
| 🇵🇫 French Polynesia | 4 |
| 🇳🇮 Nicaragua | 3 |
| 🇹🇬 Togo | 3 |
| 🇧🇿 Belize | 3 |
| 🇰🇼 Kuwait | 3 |
| 🇵🇷 Puerto Rico | 3 |
| 🇧🇼 Botswana | 3 |
| 🇲🇼 Malawi | 2 |
| 🇻🇬 British Virgin Islands | 2 |
| 🇭🇳 Honduras | 2 |
| 🇮🇲 Isle of Man | 2 |
| 🇦🇫 Afghanistan | 2 |
| 🇩🇯 Djibouti | 2 |
| 🇧🇯 Benin | 2 |
| 🇵🇬 Papua New Guinea | 2 |
| 🇲🇹 Malta | 2 |
| 🇷🇪 Réunion | 2 |
| 🇦🇩 Andorra | 2 |
| 🇽🇰 Kosovo | 2 |
| 🇲🇺 Mauritius | 2 |
| 🇧🇫 Burkina Faso | 2 |
| 🇧🇧 Barbados | 1 |
| 🇦🇸 American Samoa | 1 |
| 🇬🇶 Equatorial Guinea | 1 |
| 🇲🇻 Maldives | 1 |
| 🇱🇷 Liberia | 1 |
| 🇲🇪 Montenegro | 1 |
| 🇬🇵 Guadeloupe | 1 |
| 🇲🇨 Monaco | 1 |
| 🇾🇪 Yemen | 1 |
| 🇧🇳 Brunei | 1 |
| 🇲🇭 Marshall Islands | 1 |
| 🇱🇸 Lesotho | 1 |
| 🇨🇼 Curaçao | 1 |
| 🇸🇽 Sint Maarten | 1 |
| 🇸🇧 Solomon Islands | 1 |
| 🇬🇬 Guernsey | 1 |
| 🇻🇦 Vatican City | 1 |
| 🇳🇪 Niger | 1 |
| 🇩🇴 Dominican Republic | 1 |
| 🇬🇺 Guam | 1 |
| 🇦🇽 Åland Islands | 1 |
| 🇸🇻 El Salvador | 1 |
| 🇹🇱 Timor-Leste | 1 |