Polyfill IO

Category - JavaScript Libraries

Polyfill.io is a service which makes web development less frustrating by selectively polyfilling just what the browser needs. Polyfill.io reads the User-Agent header of each request and returns polyfills that are suitable for the requesting browser



We have discovered  8,919,001 live websites   that are using Polyfill IO.

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Technology usage statistics

Websites using Polyfill IO8,919,001 websites
Most popular in the country United States
Market position in JavaScript Libraries#4
Market penetration in JavaScript Libraries21.53%

Technology adoption

Recent changes in Polyfill IO usage. (See Polyfill IO Usage Changes report)
Websites that added Polyfill IO+1,266,599
Websites that dropped Polyfill IO-1,773,422

Polyfill IO usage distribution by website popularity



Geographical Distribution

Technology usage distribution by websites across the globe.






Websites utilizing Polyfill IO

Top websites that use Polyfill IO

DomainCountryRankContacts
twitter.com United States7
www.cloudflare.com United States27
polyfill.io United States39
vimeo.com United States67
vk.com Russia74
www.adobe.com United States88
See full domain list
Flat price per the report, subscription is not required.

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