Polyfill

Polyfill tracking and usage

Websites using Polyfill by countrymarket share
9.3%
🇺🇸US
4.3%
🇩🇪DE
3.9%
🇬🇧GB
2.8%
🇫🇷FR
2.4%
🇳🇱NL
2.2%
🇮🇹IT
2.1%
🇨🇦CA
2%
🇦🇺AU
Websites using Polyfill by industrymarket share · top 6 industries
Technology & Computing
21%
Education
18%
Shopping
17%
Construction
16%
Medical & Healthcare
15%
Marketing & Advertising
14%
0%6.3%13%19%25%
Download report

We track 9,199,351 websites using Polyfill, along with their country, traffic, industry and platforms. There are 859,858 websites using Polyfill in United States.

Filter by country
🇺🇸 United States859,858 sites
🇩🇪 Germany392,356 sites
🇬🇧 United Kingdom354,239 sites
🇫🇷 France254,227 sites
🇳🇱 Netherlands220,846 sites
🇮🇹 Italy200,543 sites
🇨🇦 Canada193,357 sites
🇦🇺 Australia183,454 sites
🇷🇺 Russian Federation169,943 sites
🇪🇸 Spain145,493 sites
🇧🇷 Brazil129,122 sites
🇮🇳 India96,743 sites
🇵🇱 Poland96,196 sites
🇨🇭 Switzerland94,934 sites
🇯🇵 Japan92,207 sites
🇧🇪 Belgium79,950 sites
🇨🇿 Czechia58,347 sites
🇸🇪 Sweden57,455 sites
🇦🇹 Austria56,124 sites
🇩🇰 Denmark44,590 sites
🇮🇱 Israel37,580 sites
🇫🇮 Finland36,624 sites
🇳🇴 Norway36,620 sites
🇲🇽 Mexico35,617 sites
🇬🇷 Greece34,247 sites
🇿🇦 South Africa33,491 sites
🇳🇿 New Zealand32,355 sites
🇦🇷 Argentina29,774 sites
🇨🇳 China28,360 sites
🇭🇺 Hungary28,191 sites
🇻🇳 Viet Nam28,025 sites
🇨🇱 Chile27,971 sites
🇮🇪 Ireland27,358 sites
🇷🇴 Romania26,561 sites
🇵🇹 Portugal25,405 sites
🇮🇷 Iran, Islamic Republic of23,924 sites
🇹🇷 Turkey23,683 sites
🇸🇰 Slovakia22,889 sites
🇮🇩 Indonesia21,958 sites
🇸🇬 Singapore18,879 sites
🇦🇪 United Arab Emirates18,027 sites
🇨🇴 Colombia14,447 sites
🇲🇾 Malaysia13,236 sites
🇪🇪 Estonia13,175 sites
🇱🇹 Lithuania12,564 sites
🇰🇷 Korea, Republic of11,606 sites
🇭🇰 Hong Kong11,320 sites
🇸🇮 Slovenia11,029 sites
🇺🇦 Ukraine10,645 sites
🇵🇰 Pakistan10,519 sites
🇹🇼 Taiwan, Province of China10,022 sites
🇵🇪 Peru9,177 sites
🇷🇸 Serbia9,135 sites
🇭🇷 Croatia8,977 sites
🇳🇬 Nigeria8,805 sites
🇹🇭 Thailand8,284 sites
🇧🇬 Bulgaria7,269 sites
🇵🇭 Philippines7,083 sites
🇧🇾 Belarus5,830 sites
🇰🇪 Kenya5,439 sites
🇱🇻 Latvia5,269 sites
🇸🇦 Saudi Arabia5,139 sites
🇪🇨 Ecuador4,914 sites
🇱🇺 Luxembourg4,799 sites
🇮🇸 Iceland4,789 sites
🇰🇿 Kazakhstan4,759 sites
🇧🇩 Bangladesh4,406 sites
🇪🇬 Egypt4,246 sites
🇲🇦 Morocco3,912 sites
🇺🇾 Uruguay3,489 sites
🇨🇾 Cyprus3,283 sites
🇱🇰 Sri Lanka3,182 sites
🇨🇷 Costa Rica2,677 sites
🇩🇴 Dominican Republic2,454 sites
🇧🇦 Bosnia and Herzegovina2,382 sites
🇲🇹 Malta2,250 sites
🇬🇪 Georgia2,172 sites
🇬🇹 Guatemala2,163 sites
🇲🇰 North Macedonia2,059 sites
🇳🇵 Nepal2,028 sites
🇵🇦 Panama1,916 sites
🇬🇭 Ghana1,889 sites
🇹🇳 Tunisia1,771 sites
🇻🇪 Venezuela, Bolivarian Republic of1,663 sites
🇵🇷 Puerto Rico1,500 sites
🇺🇬 Uganda1,486 sites
🇲🇩 Moldova, Republic of1,463 sites
🇵🇾 Paraguay1,459 sites
🇦🇱 Albania1,420 sites
🇷🇪 Réunion1,360 sites
🇶🇦 Qatar1,351 sites
🇺🇿 Uzbekistan1,308 sites
🇹🇿 Tanzania, United Republic of1,275 sites
🇦🇿 Azerbaijan1,190 sites
🇧🇴 Bolivia, Plurinational State of1,109 sites
🇲🇺 Mauritius1,062 sites
🇯🇴 Jordan1,038 sites
🇻🇨 Saint Vincent and the Grenadines1,017 sites
🇩🇿 Algeria1,011 sites
🇿🇼 Zimbabwe987 sites
🇱🇧 Lebanon986 sites
🇸🇳 Senegal949 sites
🇲🇳 Mongolia895 sites
🇨🇮 Côte d'Ivoire855 sites
🇱🇮 Liechtenstein838 sites
🇸🇻 El Salvador818 sites
🇸🇴 Somalia797 sites
🇨🇲 Cameroon791 sites
🇰🇼 Kuwait755 sites
🇳🇨 New Caledonia692 sites
🇯🇲 Jamaica675 sites
🇹🇹 Trinidad and Tobago670 sites
🇰🇭 Cambodia644 sites
🇰🇬 Kyrgyzstan640 sites
🇴🇲 Oman622 sites
🇭🇳 Honduras619 sites
🇮🇶 Iraq599 sites
🇪🇹 Ethiopia591 sites
🇧🇭 Bahrain589 sites
🇲🇨 Monaco569 sites
🇿🇲 Zambia556 sites
🇦🇬 Antigua and Barbuda555 sites
🇳🇦 Namibia539 sites
🇦🇲 Armenia532 sites
🇮🇲 Isle of Man530 sites
🇧🇿 Belize507 sites
🇰🇾 Cayman Islands493 sites
🇯🇪 Jersey482 sites
🇲🇲 Myanmar481 sites
🇷🇼 Rwanda446 sites
🇦🇴 Angola420 sites
🇦🇸 American Samoa418 sites
🇧🇲 Bermuda418 sites
🇲🇿 Mozambique412 sites
🇲🇬 Madagascar403 sites
🇳🇮 Nicaragua389 sites
🇨🇩 Congo, The Democratic Republic of the350 sites
🇧🇯 Benin336 sites
🇧🇸 Bahamas333 sites
🇧🇼 Botswana333 sites
🇽🇰 Kosovo332 sites
🇦🇩 Andorra318 sites
🇫🇴 Faroe Islands309 sites
🇲🇻 Maldives285 sites
🇲🇪 Montenegro279 sites
🇹🇬 Togo279 sites
🇧🇧 Barbados259 sites
🇧🇫 Burkina Faso253 sites
🇨🇼 Curaçao253 sites
🇬🇮 Gibraltar253 sites
🇵🇼 Palau248 sites
🇵🇸 Palestine, State of246 sites
🇸🇷 Suriname226 sites
🇫🇯 Fiji224 sites
🇹🇯 Tajikistan220 sites
🇬🇵 Guadeloupe216 sites
🇵🇫 French Polynesia214 sites
🇲🇼 Malawi213 sites
🇬🇱 Greenland206 sites
🇸🇨 Seychelles205 sites
🇦🇫 Afghanistan196 sites
🇨🇻 Cabo Verde194 sites
🇵🇬 Papua New Guinea194 sites
🇲🇱 Mali190 sites
🇲🇶 Martinique189 sites
🇻🇬 Virgin Islands, British179 sites
🇻🇮 Virgin Islands, U.S.177 sites
🇸🇲 San Marino174 sites
🇬🇾 Guyana173 sites
🇦🇽 Åland Islands158 sites
🇧🇹 Bhutan158 sites
🇭🇹 Haiti157 sites
🇲🇸 Montserrat150 sites
🇨🇺 Cuba148 sites
🇬🇬 Guernsey144 sites
🇦🇼 Aruba143 sites
🇬🇳 Guinea141 sites
🇲🇴 Macao141 sites
🇸🇱 Sierra Leone135 sites
🇹🇨 Turks and Caicos Islands129 sites
🇨🇽 Christmas Island121 sites
🇸🇩 Sudan120 sites
🇧🇳 Brunei Darussalam114 sites
🇱🇾 Libya114 sites
🇱🇨 Saint Lucia114 sites
🇨🇬 Congo114 sites
🇬🇦 Gabon107 sites
🇧🇮 Burundi105 sites
🇬🇲 Gambia102 sites
🇬🇩 Grenada97 sites
🇸🇾 Syrian Arab Republic94 sites
🇬🇺 Guam91 sites
🇱🇸 Lesotho90 sites
🇻🇺 Vanuatu89 sites
🇱🇷 Liberia83 sites
🇸🇹 Sao Tome and Principe77 sites
🇱🇦 Lao People's Democratic Republic76 sites
🇹🇱 Timor-Leste76 sites
🇳🇪 Niger75 sites
🇾🇹 Mayotte69 sites
🇸🇿 Eswatini69 sites
🇸🇽 Sint Maarten (Dutch part)69 sites
🇾🇪 Yemen65 sites
🇬🇸 South Georgia and the South Sandwich Islands62 sites
🇹🇲 Turkmenistan61 sites
🇩🇲 Dominica60 sites
🇵🇲 Saint Pierre and Miquelon59 sites
🇸🇸 South Sudan59 sites
🇬🇫 French Guiana58 sites
🇨🇰 Cook Islands57 sites
🇩🇯 Djibouti57 sites
🇰🇳 Saint Kitts and Nevis57 sites
🇧🇶 Bonaire, Sint Eustatius and Saba53 sites
🇲🇷 Mauritania48 sites
🇸🇧 Solomon Islands42 sites
🇹🇩 Chad32 sites
🇰🇲 Comoros29 sites
🇲🇵 Northern Mariana Islands28 sites
🇹🇫 French Southern Territories27 sites
🇨🇫 Central African Republic24 sites
🇼🇸 Samoa21 sites
🇼🇫 Wallis and Futuna20 sites
🇬🇶 Equatorial Guinea20 sites
🇦🇮 Anguilla18 sites
🇬🇼 Guinea-Bissau16 sites
🇫🇰 Falkland Islands (Malvinas)15 sites
🇰🇮 Kiribati14 sites
🇮🇴 British Indian Ocean Territory14 sites
🇲🇭 Marshall Islands11 sites
🇧🇱 Saint Barthélemy11 sites
🇻🇦 Holy See (Vatican City State)9 sites
🇳🇫 Norfolk Island9 sites
🇸🇯 Svalbard and Jan Mayen8 sites
🇹🇴 Tonga8 sites
🇰🇵 Korea, Democratic People's Republic of7 sites
🇺🇲 United States Minor Outlying Islands6 sites
🇲🇫 Saint Martin (French part)5 sites
🇳🇺 Niue4 sites
🇭🇲 Heard Island and McDonald Islands4 sites
🇫🇲 Micronesia, Federated States of4 sites
🇸🇭 Saint Helena, Ascension and Tristan da Cunha3 sites
🇵🇳 Pitcairn3 sites
🇳🇷 Nauru3 sites
🇹🇻 Tuvalu1 sites

About Polyfill

Polyfill is a JavaScript library that adds modern browser features to older browsers, letting developers use current web standards without breaking compatibility.

Official websitepolyfill.io↗

Websites using Polyfill

showing 25 of 9,199,351
WebsiteCountryTrafficIndustry
wordpress.com🇺🇸USTop 500Technology & Computing
ea.com🇺🇸USTop 500Entertainment
xiaomi.com-Top 500-
theguardian.com🇬🇧GBTop 500Print & Publishing
bilibili.com🇨🇳CNTop 500Software Development
bbc.com🇬🇧GBTop 500News & Weather
oxylabs.io🇱🇹LTTop 500Technology & Computing
crpt.ru🇷🇺RUTop 500Software Development
miui.com🇨🇳CNTop 500Software Development
netangels.ru🇷🇺RUTop 500Technology & Computing
inmobi.com🇮🇳INTop 500Marketing & Advertising
walmart.com🇺🇸USTop 500Shopping
mit.edu🇺🇸USTop 500Education
applovin.com🇺🇸USTop 500SaaS & Cloud
doubleverify.com🇺🇸USTop 500Software Development
duolingo.com🇺🇸USTop 500Education
amplitude.com🇺🇸USTop 500Software Development
supercell.com🇫🇮FITop 500Gaming
duckduckgo.com🇺🇸USTop 500Software Development
launchdarkly.com🇺🇸USTop 500Software Development
yandex.com🇷🇺RUTop 500Technology & Computing
intuit.com🇺🇸USTop 500Software Development
vk.com🇷🇺RUTop 500Technology & Computing
kaspersky.com🇨🇭CHTop 500Cybersecurity
drom.ru🇷🇺RUTop 500Technology & Computing
Showing 25 of 9,199,351 websitesView detailed list →

Frequently asked

What is a Polyfill?›
A Polyfill is a piece of code that is used to provide modern functionality on older browsers that do not natively support it. It bridges the gap, allowing developers to use newer web features while maintaining backward compatibility with older browsers.
When should I use a Polyfill in my project?›
You should use a Polyfill in your project when you want to ensure that your web application works seamlessly across different browsers and versions, especially when making use of modern web features that are not supported by older browsers.
Can Polyfills cause performance issues in a web application?›
Although Polyfills help provide compatibility with older browsers, they can sometimes cause performance issues. Since they are essentially JavaScript code running in the browser, using a large number of Polyfills or large-sized Polyfills may slow down your application. To mitigate this, it's recommended to use only the necessary Polyfills and to load them conditionally, based on the user's browser.
How are Polyfills different from Shims?›
Both Polyfills and Shims serve the purpose of providing compatibility with older browsers, but they do so in slightly different ways. A Polyfill is used to replicate an entire API or functionality that is missing in the older browser, while a Shim typically modifies an existing API, often working around browser inconsistency or providing partial functionality of a missing API.
Are there any popular libraries that provide Polyfills?›
Yes, there are several popular libraries that provide Polyfills, such as core-js, polyfill.io, and Modernizr. These libraries detect browser support and only load the required Polyfills, making it easier to manage compatibility issues in your web applications.

Alternatives

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