Polyfill tracking and usage
Websites using Polyfill by countrymarket share
9.2%
🇺🇸US4.3%
🇩🇪DE3.8%
🇬🇧GB2.8%
🇫🇷FR2.4%
🇳🇱NL2.2%
🇮🇹IT2.1%
🇨🇦CA2%
🇦🇺AUWebsites using Polyfill by industrymarket share · top 6 industries
Technology & Computing
Education
Construction
Medical & Healthcare
Shopping
Marketing & Advertising
0%6.3%13%19%25%
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We track 9,150,556 websites using Polyfill, along with their country, traffic, industry and platforms. There are 844,315 websites using Polyfill in United States.
Filter by country
🇺🇸 United States844,315 sites
🇩🇪 Germany390,298 sites
🇬🇧 United Kingdom350,079 sites
🇫🇷 France252,043 sites
🇳🇱 Netherlands219,004 sites
🇮🇹 Italy198,799 sites
🇨🇦 Canada191,194 sites
🇦🇺 Australia181,517 sites
🇷🇺 Russian Federation169,279 sites
🇪🇸 Spain144,011 sites
🇧🇷 Brazil127,541 sites
🇵🇱 Poland95,431 sites
🇮🇳 India94,376 sites
🇨🇠Switzerland94,362 sites
🇯🇵 Japan91,685 sites
🇧🇪 Belgium79,413 sites
🇨🇿 Czechia58,103 sites
🇸🇪 Sweden56,915 sites
🇦🇹 Austria55,843 sites
🇩🇰 Denmark44,185 sites
🇮🇱 Israel37,323 sites
🇫🇮 Finland36,386 sites
🇳🇴 Norway36,323 sites
🇲🇽 Mexico35,024 sites
🇬🇷 Greece33,964 sites
🇿🇦 South Africa33,078 sites
🇳🇿 New Zealand32,033 sites
🇦🇷 Argentina29,436 sites
ðŸ‡ðŸ‡º Hungary28,054 sites
🇨🇳 China27,901 sites
🇻🇳 Viet Nam27,706 sites
🇨🇱 Chile27,704 sites
🇮🇪 Ireland27,088 sites
🇷🇴 Romania26,373 sites
🇵🇹 Portugal25,022 sites
🇮🇷 Iran, Islamic Republic of23,784 sites
🇹🇷 Turkey23,117 sites
🇸🇰 Slovakia22,785 sites
🇮🇩 Indonesia21,403 sites
🇸🇬 Singapore18,501 sites
🇦🇪 United Arab Emirates17,654 sites
🇨🇴 Colombia14,147 sites
🇪🇪 Estonia13,104 sites
🇲🇾 Malaysia13,003 sites
🇱🇹 Lithuania12,475 sites
🇰🇷 Korea, Republic of11,402 sites
ðŸ‡ðŸ‡° Hong Kong11,162 sites
🇸🇮 Slovenia10,960 sites
🇺🇦 Ukraine10,546 sites
🇵🇰 Pakistan10,292 sites
🇹🇼 Taiwan, Province of China9,927 sites
🇷🇸 Serbia9,063 sites
🇵🇪 Peru9,053 sites
ðŸ‡ðŸ‡· Croatia8,891 sites
🇳🇬 Nigeria8,684 sites
🇹🇠Thailand8,178 sites
🇧🇬 Bulgaria7,185 sites
🇵🇠Philippines6,964 sites
🇧🇾 Belarus5,766 sites
🇰🇪 Kenya5,383 sites
🇱🇻 Latvia5,234 sites
🇸🇦 Saudi Arabia5,003 sites
🇪🇨 Ecuador4,852 sites
🇱🇺 Luxembourg4,760 sites
🇮🇸 Iceland4,748 sites
🇰🇿 Kazakhstan4,718 sites
🇧🇩 Bangladesh4,326 sites
🇪🇬 Egypt4,128 sites
🇲🇦 Morocco3,840 sites
🇺🇾 Uruguay3,459 sites
🇨🇾 Cyprus3,236 sites
🇱🇰 Sri Lanka3,126 sites
🇨🇷 Costa Rica2,635 sites
🇩🇴 Dominican Republic2,421 sites
🇧🇦 Bosnia and Herzegovina2,361 sites
🇲🇹 Malta2,205 sites
🇬🇪 Georgia2,141 sites
🇬🇹 Guatemala2,138 sites
🇲🇰 North Macedonia2,042 sites
🇳🇵 Nepal1,994 sites
🇵🇦 Panama1,877 sites
🇬🇠Ghana1,851 sites
🇹🇳 Tunisia1,737 sites
🇻🇪 Venezuela, Bolivarian Republic of1,635 sites
🇵🇷 Puerto Rico1,491 sites
🇺🇬 Uganda1,465 sites
🇲🇩 Moldova, Republic of1,454 sites
🇵🇾 Paraguay1,441 sites
🇦🇱 Albania1,404 sites
🇷🇪 Réunion1,351 sites
🇶🇦 Qatar1,326 sites
🇺🇿 Uzbekistan1,278 sites
🇹🇿 Tanzania, United Republic of1,256 sites
🇦🇿 Azerbaijan1,173 sites
🇧🇴 Bolivia, Plurinational State of1,096 sites
🇲🇺 Mauritius1,045 sites
🇯🇴 Jordan1,012 sites
🇻🇨 Saint Vincent and the Grenadines1,009 sites
🇩🇿 Algeria998 sites
🇿🇼 Zimbabwe979 sites
🇱🇧 Lebanon953 sites
🇸🇳 Senegal929 sites
🇲🇳 Mongolia880 sites
🇨🇮 Côte d'Ivoire836 sites
🇱🇮 Liechtenstein830 sites
🇸🇻 El Salvador805 sites
🇸🇴 Somalia786 sites
🇨🇲 Cameroon776 sites
🇰🇼 Kuwait744 sites
🇳🇨 New Caledonia686 sites
🇯🇲 Jamaica672 sites
🇹🇹 Trinidad and Tobago664 sites
🇰🇬 Kyrgyzstan636 sites
🇰🇠Cambodia634 sites
🇴🇲 Oman610 sites
ðŸ‡ðŸ‡³ Honduras607 sites
🇮🇶 Iraq588 sites
🇪🇹 Ethiopia583 sites
🇧🇠Bahrain577 sites
🇲🇨 Monaco556 sites
🇿🇲 Zambia549 sites
🇦🇬 Antigua and Barbuda547 sites
🇳🇦 Namibia532 sites
🇮🇲 Isle of Man526 sites
🇦🇲 Armenia511 sites
🇧🇿 Belize503 sites
🇰🇾 Cayman Islands480 sites
🇯🇪 Jersey472 sites
🇲🇲 Myanmar472 sites
🇷🇼 Rwanda444 sites
🇧🇲 Bermuda415 sites
🇦🇴 Angola413 sites
🇦🇸 American Samoa413 sites
🇲🇿 Mozambique411 sites
🇲🇬 Madagascar398 sites
🇳🇮 Nicaragua387 sites
🇨🇩 Congo, The Democratic Republic of the338 sites
🇧🇯 Benin334 sites
🇽🇰 Kosovo329 sites
🇧🇼 Botswana328 sites
🇧🇸 Bahamas325 sites
🇦🇩 Andorra312 sites
🇫🇴 Faroe Islands308 sites
🇲🇻 Maldives281 sites
🇹🇬 Togo276 sites
🇲🇪 Montenegro270 sites
🇧🇧 Barbados252 sites
🇧🇫 Burkina Faso249 sites
🇬🇮 Gibraltar247 sites
🇵🇼 Palau247 sites
🇨🇼 Curaçao245 sites
🇵🇸 Palestine, State of242 sites
🇫🇯 Fiji223 sites
🇸🇷 Suriname220 sites
🇹🇯 Tajikistan217 sites
🇬🇵 Guadeloupe213 sites
🇲🇼 Malawi213 sites
🇵🇫 French Polynesia212 sites
🇬🇱 Greenland204 sites
🇸🇨 Seychelles199 sites
🇨🇻 Cabo Verde193 sites
🇦🇫 Afghanistan191 sites
🇵🇬 Papua New Guinea191 sites
🇲🇱 Mali189 sites
🇲🇶 Martinique185 sites
🇻🇬 Virgin Islands, British178 sites
🇻🇮 Virgin Islands, U.S.176 sites
🇬🇾 Guyana171 sites
🇸🇲 San Marino171 sites
🇦🇽 Åland Islands155 sites
ðŸ‡ðŸ‡¹ Haiti154 sites
🇧🇹 Bhutan152 sites
🇲🇸 Montserrat150 sites
🇨🇺 Cuba146 sites
🇦🇼 Aruba141 sites
🇲🇴 Macao139 sites
🇬🇳 Guinea138 sites
🇬🇬 Guernsey137 sites
🇸🇱 Sierra Leone132 sites
🇹🇨 Turks and Caicos Islands128 sites
🇨🇽 Christmas Island120 sites
🇸🇩 Sudan116 sites
🇨🇬 Congo115 sites
🇧🇳 Brunei Darussalam114 sites
🇱🇾 Libya113 sites
🇱🇨 Saint Lucia109 sites
🇧🇮 Burundi105 sites
🇬🇦 Gabon103 sites
🇬🇲 Gambia103 sites
🇬🇩 Grenada97 sites
🇸🇾 Syrian Arab Republic91 sites
🇬🇺 Guam89 sites
🇱🇸 Lesotho88 sites
🇻🇺 Vanuatu87 sites
🇱🇷 Liberia83 sites
🇸🇹 Sao Tome and Principe79 sites
🇹🇱 Timor-Leste76 sites
🇳🇪 Niger74 sites
🇱🇦 Lao People's Democratic Republic72 sites
🇾🇹 Mayotte68 sites
🇸🇽 Sint Maarten (Dutch part)68 sites
🇸🇿 Eswatini67 sites
🇾🇪 Yemen63 sites
🇬🇸 South Georgia and the South Sandwich Islands62 sites
🇸🇸 South Sudan60 sites
🇩🇲 Dominica60 sites
🇹🇲 Turkmenistan60 sites
🇵🇲 Saint Pierre and Miquelon58 sites
🇨🇰 Cook Islands57 sites
🇬🇫 French Guiana57 sites
🇩🇯 Djibouti56 sites
🇰🇳 Saint Kitts and Nevis54 sites
🇧🇶 Bonaire, Sint Eustatius and Saba53 sites
🇲🇷 Mauritania46 sites
🇸🇧 Solomon Islands42 sites
🇹🇩 Chad32 sites
🇰🇲 Comoros28 sites
🇲🇵 Northern Mariana Islands27 sites
🇹🇫 French Southern Territories26 sites
🇨🇫 Central African Republic23 sites
🇼🇫 Wallis and Futuna20 sites
🇬🇶 Equatorial Guinea20 sites
🇼🇸 Samoa19 sites
🇦🇮 Anguilla18 sites
🇬🇼 Guinea-Bissau16 sites
🇫🇰 Falkland Islands (Malvinas)15 sites
🇮🇴 British Indian Ocean Territory14 sites
🇰🇮 Kiribati13 sites
🇧🇱 Saint Barthélemy11 sites
🇲🇠Marshall Islands10 sites
🇻🇦 Holy See (Vatican City State)9 sites
🇳🇫 Norfolk Island9 sites
🇸🇯 Svalbard and Jan Mayen8 sites
🇹🇴 Tonga8 sites
🇲🇫 Saint Martin (French part)6 sites
🇰🇵 Korea, Democratic People's Republic of6 sites
🇳🇺 Niue4 sites
ðŸ‡ðŸ‡² Heard Island and McDonald Islands4 sites
🇫🇲 Micronesia, Federated States of4 sites
🇸🇠Saint Helena, Ascension and Tristan da Cunha3 sites
🇳🇷 Nauru3 sites
🇵🇳 Pitcairn2 sites
🇺🇲 United States Minor Outlying Islands2 sites
🇹🇻 Tuvalu1 sites
About Polyfill
Polyfill is a technology that provides modern functionality to older, less advanced web browsers or environments, ensuring consistent and efficient user experience. Essentially, it is a fallback mechanism designed to fill in the gaps in browser compatibility by mimicking the API features of recent web standards. By using JavaScript code libraries or plugins, Polyfill identifies the browser's incapabilities and adapts accordingly, essentially "polyfilling" missing features. This technique enables developers to leverage the latest technologies without alienating users of older browsers, maintaining support, and ensuring a seamless integration of innovative web features.
Category
Official website
polyfill.io↗
Websites using Polyfill
showing 25 of 9,150,556| Website | Country | Traffic | Industry |
|---|---|---|---|
| 🇺🇸US | Top 500 | Business & Finance | |
| 🇩🇰DK | Top 500 | Technology & Computing | |
| 🇺🇸US | Top 500 | Entertainment | |
| - | Top 500 | - | |
| 🇬🇧GB | Top 500 | Print & Publishing | |
| 🇨🇳CN | Top 500 | Software Development | |
| 🇬🇧GB | Top 500 | News & Weather | |
| 🇱🇹LT | Top 500 | Technology & Computing | |
| 🇷🇺RU | Top 500 | Software Development | |
| 🇷🇺RU | Top 500 | Technology & Computing | |
| - | Top 500 | Science | |
| 🇺🇸US | Top 500 | Software Development | |
| 🇮🇳IN | Top 500 | Marketing & Advertising | |
| 🇺🇸US | Top 500 | Shopping | |
| 🇺🇸US | Top 500 | Education | |
| 🇺🇸US | Top 500 | Software Development | |
| 🇺🇸US | Top 500 | Science | |
| 🇺🇸US | Top 500 | Education | |
| 🇺🇸US | Top 500 | Software Development | |
| 🇺🇸US | Top 500 | Science | |
| 🇺🇸US | Top 500 | Software Development | |
| 🇺🇸US | Top 500 | Cybersecurity | |
| 🇫🇮FI | Top 500 | Gaming | |
| 🇺🇸US | Top 500 | Software Development | |
| 🇺🇸US | Top 500 | Software Development |
Showing 25 of 9,150,556 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.
