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 8,820,124 live websites that are using Polyfill IO.
Download website list
Technology usage statistics
|Websites using Polyfill IO
|Most popular in the country
United States of America
Recent changes in Polyfill IO usage.
(See Polyfill IO Usage Changes
|Websites that added Polyfill IO
|Websites that dropped Polyfill IO
Distribution by websites popularity
Polyfill IO detection in the top websites by popularity
|Top 10k sites
|Top 100k sites
|Top 1m sites
Websites utilizing Polyfill IO
Top websites that use Polyfill IO
See full domain list
Flat price per the report, subscription is not required.
Technology usage distribution by websites across the globe.