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core-js vs Polyfill.io: who uses which
core-js is on more sites: 2,697,064 against 80,632 for Polyfill.io, about 33.4 times as many. Here's how they compare across the websites we've indexed, and where each one does best.
Where each one is used
| Domain | core-js | Polyfill.io |
|---|---|---|
| .com on .com | 1,737,564 | 43,820 |
| .org on .org | 168,333 | 3,239 |
| .uk in the UK | 119,622 | 1,494 |
| .de in Germany | 66,751 | 931 |
| .net on .net | 65,392 | 1,490 |
| .au in Australia | 50,707 | 1,038 |
| .ca in Canada | 45,709 | 999 |
| .ch in Switzerland | 42,049 | 266 |
1,098 sites run both at once.
Questions
Which is more popular, core-js or Polyfill.io?
core-js is on more sites: 2,697,064 against 80,632 for Polyfill.io, about 33.4 times as many, across the sites StackGrep has indexed.
Do sites use core-js and Polyfill.io together?
1,098 sites load both. That's often a switch in progress, or two teams picking different tools.
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