core-js

core-js tracking and usage

Websites using core-js by countrymarket share
7.8%
🇺🇸US
6.5%
🇩🇪DE
3.6%
🇬🇧GB
3.1%
🇫🇷FR
2.9%
🇳🇱NL
2.7%
🇮🇹IT
1.9%
🇷🇺RU
1.9%
🇨🇦CA
Websites using core-js by industrymarket share · top 6 industries
Technology & Computing
21%
Education
18%
Construction
17%
Medical & Healthcare
16%
Marketing & Advertising
15%
Shopping
13%
0%6.3%13%19%25%
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We track 14,956,508 websites using core-js, along with their country, traffic, industry and platforms. There are 1,173,483 websites using core-js in United States.

Filter by country
🇺🇸 United States1,173,483 sites
🇩🇪 Germany979,596 sites
🇬🇧 United Kingdom538,547 sites
🇫🇷 France467,869 sites
🇳🇱 Netherlands436,546 sites
🇮🇹 Italy399,345 sites
🇷🇺 Russian Federation291,315 sites
🇨🇦 Canada281,458 sites
🇦🇺 Australia264,696 sites
🇪🇸 Spain257,500 sites
🇵🇱 Poland254,471 sites
🇧🇷 Brazil192,529 sites
🇯🇵 Japan188,273 sites
🇨🇭 Switzerland163,247 sites
🇮🇳 India154,842 sites
🇧🇪 Belgium129,782 sites
🇸🇪 Sweden116,373 sites
🇨🇿 Czechia100,330 sites
🇦🇹 Austria99,402 sites
🇩🇰 Denmark93,957 sites
🇬🇷 Greece66,861 sites
🇷🇴 Romania61,274 sites
🇫🇮 Finland61,265 sites
🇭🇺 Hungary60,335 sites
🇹🇷 Turkey59,366 sites
🇿🇦 South Africa57,566 sites
🇳🇴 Norway55,629 sites
🇲🇽 Mexico52,284 sites
🇮🇩 Indonesia51,759 sites
🇻🇳 Viet Nam50,020 sites
🇦🇷 Argentina49,812 sites
🇮🇱 Israel48,210 sites
🇳🇿 New Zealand46,596 sites
🇮🇷 Iran, Islamic Republic of45,872 sites
🇮🇪 Ireland44,711 sites
🇸🇰 Slovakia43,771 sites
🇨🇱 Chile43,087 sites
🇵🇹 Portugal42,181 sites
🇱🇹 Lithuania25,701 sites
🇦🇪 United Arab Emirates25,448 sites
🇪🇪 Estonia24,652 sites
🇸🇬 Singapore24,272 sites
🇺🇦 Ukraine23,460 sites
🇨🇳 China22,991 sites
🇸🇮 Slovenia21,794 sites
🇨🇴 Colombia21,496 sites
🇷🇸 Serbia20,898 sites
🇲🇾 Malaysia20,582 sites
🇵🇰 Pakistan18,379 sites
🇭🇷 Croatia18,315 sites
🇳🇬 Nigeria15,571 sites
🇹🇼 Taiwan, Province of China15,537 sites
🇭🇰 Hong Kong14,974 sites
🇵🇪 Peru14,269 sites
🇧🇬 Bulgaria13,864 sites
🇹🇭 Thailand13,009 sites
🇰🇷 Korea, Republic of12,181 sites
🇧🇾 Belarus10,658 sites
🇵🇭 Philippines10,447 sites
🇱🇻 Latvia10,301 sites
🇰🇪 Kenya9,825 sites
🇰🇿 Kazakhstan9,320 sites
🇱🇺 Luxembourg7,992 sites
🇧🇩 Bangladesh7,796 sites
🇪🇨 Ecuador7,537 sites
🇸🇦 Saudi Arabia7,322 sites
🇲🇦 Morocco7,256 sites
🇮🇸 Iceland7,065 sites
🇪🇬 Egypt6,500 sites
🇱🇰 Sri Lanka5,565 sites
🇧🇦 Bosnia and Herzegovina5,285 sites
🇺🇾 Uruguay5,184 sites
🇨🇾 Cyprus5,089 sites
🇲🇰 North Macedonia4,430 sites
🇨🇷 Costa Rica3,855 sites
🇩🇴 Dominican Republic3,804 sites
🇳🇵 Nepal3,551 sites
🇬🇪 Georgia3,478 sites
🇹🇳 Tunisia3,325 sites
🇲🇹 Malta3,270 sites
🇬🇹 Guatemala3,255 sites
🇬🇭 Ghana3,063 sites
🇦🇱 Albania2,824 sites
🇻🇪 Venezuela, Bolivarian Republic of2,820 sites
🇲🇩 Moldova, Republic of2,798 sites
🇵🇦 Panama2,773 sites
🇺🇬 Uganda2,513 sites
🇷🇪 Réunion2,415 sites
🇵🇾 Paraguay2,305 sites
🇹🇿 Tanzania, United Republic of2,215 sites
🇶🇦 Qatar2,037 sites
🇦🇿 Azerbaijan1,990 sites
🇿🇼 Zimbabwe1,970 sites
🇺🇿 Uzbekistan1,929 sites
🇵🇷 Puerto Rico1,918 sites
🇩🇿 Algeria1,864 sites
🇧🇴 Bolivia, Plurinational State of1,840 sites
🇸🇳 Senegal1,651 sites
🇲🇺 Mauritius1,631 sites
🇯🇴 Jordan1,607 sites
🇱🇧 Lebanon1,606 sites
🇱🇮 Liechtenstein1,526 sites
🇨🇮 Côte d'Ivoire1,391 sites
🇨🇲 Cameroon1,373 sites
🇸🇻 El Salvador1,279 sites
🇲🇳 Mongolia1,205 sites
🇰🇬 Kyrgyzstan1,165 sites
🇻🇨 Saint Vincent and the Grenadines1,105 sites
🇮🇶 Iraq1,050 sites
🇪🇹 Ethiopia1,026 sites
🇹🇹 Trinidad and Tobago1,024 sites
🇰🇼 Kuwait1,015 sites
🇳🇨 New Caledonia1,000 sites
🇴🇲 Oman1,000 sites
🇰🇭 Cambodia999 sites
🇧🇿 Belize958 sites
🇯🇲 Jamaica940 sites
🇦🇬 Antigua and Barbuda903 sites
🇧🇭 Bahrain901 sites
🇲🇨 Monaco892 sites
🇭🇳 Honduras877 sites
🇳🇦 Namibia872 sites
🇿🇲 Zambia790 sites
🇲🇲 Myanmar786 sites
🇦🇲 Armenia732 sites
🇲🇿 Mozambique725 sites
🇰🇾 Cayman Islands711 sites
🇮🇲 Isle of Man709 sites
🇷🇼 Rwanda688 sites
🇲🇬 Madagascar681 sites
🇯🇪 Jersey664 sites
🇦🇸 American Samoa651 sites
🇦🇴 Angola642 sites
🇨🇩 Congo, The Democratic Republic of the620 sites
🇧🇲 Bermuda570 sites
🇫🇴 Faroe Islands557 sites
🇳🇮 Nicaragua555 sites
🇵🇼 Palau548 sites
🇽🇰 Kosovo538 sites
🇧🇯 Benin520 sites
🇧🇼 Botswana500 sites
🇵🇸 Palestine, State of492 sites
🇹🇬 Togo485 sites
🇦🇩 Andorra484 sites
🇸🇴 Somalia479 sites
🇧🇫 Burkina Faso475 sites
🇹🇯 Tajikistan456 sites
🇧🇸 Bahamas447 sites
🇲🇪 Montenegro434 sites
🇨🇼 Curaçao395 sites
🇦🇫 Afghanistan390 sites
🇧🇧 Barbados389 sites
🇸🇷 Suriname386 sites
🇲🇻 Maldives373 sites
🇵🇫 French Polynesia365 sites
🇫🇯 Fiji356 sites
🇲🇼 Malawi355 sites
🇬🇮 Gibraltar354 sites
🇲🇱 Mali318 sites
🇲🇶 Martinique313 sites
🇬🇵 Guadeloupe305 sites
🇵🇬 Papua New Guinea301 sites
🇲🇴 Macao299 sites
🇸🇲 San Marino298 sites
🇧🇹 Bhutan296 sites
🇬🇱 Greenland284 sites
🇨🇺 Cuba276 sites
🇸🇨 Seychelles272 sites
🇱🇾 Libya270 sites
🇲🇸 Montserrat268 sites
🇸🇩 Sudan262 sites
🇨🇻 Cabo Verde259 sites
🇬🇾 Guyana254 sites
🇻🇮 Virgin Islands, U.S.254 sites
🇬🇳 Guinea235 sites
🇭🇹 Haiti235 sites
🇸🇱 Sierra Leone226 sites
🇦🇼 Aruba214 sites
🇸🇾 Syrian Arab Republic213 sites
🇧🇮 Burundi212 sites
🇨🇽 Christmas Island205 sites
🇦🇽 Åland Islands201 sites
🇻🇬 Virgin Islands, British195 sites
🇨🇬 Congo193 sites
🇬🇦 Gabon190 sites
🇧🇳 Brunei Darussalam180 sites
🇬🇬 Guernsey177 sites
🇹🇨 Turks and Caicos Islands171 sites
🇬🇲 Gambia170 sites
🇱🇨 Saint Lucia169 sites
🇬🇩 Grenada167 sites
🇾🇪 Yemen155 sites
🇻🇺 Vanuatu142 sites
🇱🇸 Lesotho132 sites
🇱🇦 Lao People's Democratic Republic127 sites
🇲🇷 Mauritania123 sites
🇱🇷 Liberia121 sites
🇬🇺 Guam119 sites
🇸🇹 Sao Tome and Principe119 sites
🇸🇿 Eswatini118 sites
🇳🇪 Niger115 sites
🇩🇯 Djibouti111 sites
🇾🇹 Mayotte109 sites
🇵🇲 Saint Pierre and Miquelon109 sites
🇰🇳 Saint Kitts and Nevis108 sites
🇨🇫 Central African Republic107 sites
🇹🇱 Timor-Leste103 sites
🇸🇸 South Sudan101 sites
🇸🇽 Sint Maarten (Dutch part)101 sites
🇧🇶 Bonaire, Sint Eustatius and Saba93 sites
🇬🇸 South Georgia and the South Sandwich Islands93 sites
🇩🇲 Dominica90 sites
🇹🇲 Turkmenistan88 sites
🇨🇰 Cook Islands79 sites
🇬🇫 French Guiana75 sites
🇹🇩 Chad66 sites
🇬🇶 Equatorial Guinea58 sites
🇸🇧 Solomon Islands56 sites
🇼🇫 Wallis and Futuna56 sites
🇹🇫 French Southern Territories42 sites
🇳🇫 Norfolk Island40 sites
🇰🇲 Comoros39 sites
🇲🇵 Northern Mariana Islands35 sites
🇬🇼 Guinea-Bissau32 sites
🇦🇮 Anguilla31 sites
🇰🇮 Kiribati29 sites
🇼🇸 Samoa29 sites
🇫🇰 Falkland Islands (Malvinas)23 sites
🇧🇱 Saint Barthélemy18 sites
🇻🇦 Holy See (Vatican City State)16 sites
🇳🇷 Nauru13 sites
🇲🇫 Saint Martin (French part)12 sites
🇹🇴 Tonga12 sites
🇫🇲 Micronesia, Federated States of10 sites
🇲🇭 Marshall Islands9 sites
🇸🇯 Svalbard and Jan Mayen9 sites
🇰🇵 Korea, Democratic People's Republic of7 sites
🇮🇴 British Indian Ocean Territory6 sites
🇳🇺 Niue5 sites
🇸🇭 Saint Helena, Ascension and Tristan da Cunha4 sites
🇵🇳 Pitcairn4 sites
🇹🇻 Tuvalu4 sites
🇭🇲 Heard Island and McDonald Islands1 sites
🇦🇶 Antarctica1 sites
🇺🇲 United States Minor Outlying Islands1 sites
🇪🇷 Eritrea1 sites
🇨🇨 Cocos (Keeling) Islands1 sites

About core-js

core-js is a popular library available for JavaScript. It is designed to be a modular standard library and it comes with polyfills for ECMAScript as well. It offers a wide range of features, including several cross-platform features. It welcomes sponsors and backers for the continued development and sustenance of the core-js project. Core-js is preferred for its different symbols, iterators and typed arrays. It is available for use on all the major browsers such as Google Chrome, Mozilla Firefox, Safari, Opera, Android Browser, iOS Safari, PhantomJS, NodeJS, Rhino and Deno, among others. It is known for being widely tested on different engines.

Websites using core-js

showing 25 of 14,956,508
WebsiteCountryTrafficIndustry
crpt.ru🇷🇺RUTop 500Software Development
harvard.edu🇺🇸USTop 500Education
cnn.com🇺🇸USTop 500News & Weather
forter.com🇺🇸USTop 500Software Development
webex.com🇺🇸USTop 500Telecommunications
adriver.ru🇷🇺RUTop 500Software Development
cloudns.net🇧🇬BGTop 500Technology & Computing
applovin.com🇺🇸USTop 500Software Development
doubleverify.com🇺🇸USTop 500Software Development
docker.com🇺🇸USTop 500Software Development
weebly.com🇺🇸USTop 500Technology & Computing
mcafee.com🇺🇸USTop 500Cybersecurity
huawei.com🇨🇳CNTop 500Telecommunications
kaspersky.com🇨🇭CHTop 500Cybersecurity
cpanel.net🇺🇸USTop 500Software Development
plesk.com🇺🇸USTop 500Software Development
criteo.com🇫🇷FRTop 500Marketing & Advertising
stanford.edu🇺🇸USTop 500Education
t-online.de🇩🇪DETop 500Entertainment
ibm.com🇺🇸USTop 500Technology & Computing
reg.ru🇷🇺RUTop 500Technology & Computing
taboola.com🇺🇸USTop 500Software Development
w3.org🇺🇸USTop 500Non-profit & Charity
cisco.com🇺🇸USTop 500Software Development
discord.com🇺🇸USTop 500Software Development
Showing 25 of 14,956,508 websitesView detailed list →

Frequently asked

What is core-js?›
Core-js is a modular standard library for JavaScript that provides polyfills and features that JavaScript engines don't have by default. It includes basic utilities, ECMAScript features, and additional stable proposals that are useful for modern JavaScript development.
What are the advantages of using core-js?›
Core-js offers several advantages including cross-browser compatibility, easy integration with build tools and bundlers, and a wide range of polyfills for modern JavaScript features. By using core-js, developers can ensure a consistent experience across different platforms and devices, and utilize the latest language features without sacrificing support for older engines.
Does core-js support ES6 features?›
Yes, core-js fully supports ECMAScript 6 (ES6) features as well as later editions of the standard, and also includes some experimental features and proposals that might become part of future standards. By utilizing core-js, developers can use modern ES6 features and be assured of compatibility across engines that do not natively support them.
How can I include core-js in my project?›
You can include core-js in your project either by installing it via npm or yarn (`npm install core-js` or `yarn add core-js`) and then importing the required polyfills in your code, or by using a CDN to load the library directly in your HTML file. Once included, the polyfills will automatically patch the environment, providing the missing features.
How does core-js handle conflicts between native implementations and polyfills?›
Core-js is designed to avoid conflicts between its polyfills and native implementations of the same features. When a polyfill is loaded, core-js checks if the native implementation is already available and compliant with the standard. If so, the native implementation is used; otherwise, core-js replaces or extends the native feature with its polyfill to ensure a consistent behavior across environments.

Alternatives

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