Polyfill IO tracking and usage
Websites using Polyfill IO over time
2,708,433websites on 11 Nov 2026
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We track 2,708,433 websites using Polyfill IO, along with their country, traffic, industry and platforms. There are 274,820 websites using Polyfill IO in United States.
About Polyfill IO
Polyfill IO is a JavaScript library that serves hosted polyfill scripts to add missing browser features.
Websites using Polyfill IO by countrymarket share
10%
🇺🇸US4.6%
🇬🇧GB2.5%
🇩🇪DE2.4%
🇨🇦CA2.2%
🇫🇷FR1.7%
🇦🇺AU1.5%
🇨🇭CH1.3%
🇧🇷BRWebsites using Polyfill IO by industrymarket share · top 6 industries
Education
Shopping
Medical & Healthcare
Construction
Technology & Computing
Marketing & Advertising
0%5%10%15%20%
Websites using Polyfill IO
showing 25 of 2,708,433| Website | Country | Traffic | Industry |
|---|---|---|---|
| 🇬🇧GB | Top 500 | Print & Publishing | |
| 🇺🇸US | Top 500 | Education | |
| 🇺🇸US | Top 500 | Software Development | |
| 🇨🇿CZ | Top 500 | Cybersecurity | |
| 🇺🇸US | Top 500 | Movies & TV | |
| 🇬🇧GB | Top 1K | - | |
| 🇺🇸US | Top 1K | SaaS & Cloud | |
| 🇺🇸US | Top 1K | Law & Government | |
| 🇪🇸ES | Top 1K | News & Weather | |
| 🇺🇸US | Top 1K | Staffing & Recruitment | |
| 🇺🇸US | Top 1K | Gaming | |
| 🇬🇧GB | Top 1K | News & Weather | |
| 🇩🇪DE | Top 1K | Technology & Computing | |
| 🇺🇸US | Top 1K | Technology & Computing | |
| 🇺🇸US | Top 5K | Entertainment | |
| 🇵🇱PL | Top 5K | Technology & Computing | |
| 🇺🇸US | Top 5K | Software Development | |
| 🇺🇸US | Top 5K | Software Development | |
| 🇺🇸US | Top 5K | Software Development | |
| 🇳🇱NL | Top 5K | Technology & Computing | |
| 🇺🇸US | Top 5K | Education | |
| 🇫🇷FR | Top 5K | Gaming | |
| 🇺🇸US | Top 5K | Software Development | |
| 🇺🇸US | Top 5K | Software Development | |
| 🇯🇵JP | Top 5K | Business & Finance |
Showing 25 of 2,708,433 websitesView detailed list →
