# polyfills.io: how AI models rank it, November 2026

Gane Index, November 2026 Edition. Named in 1 judge label across 1 category by 1 of 14 models. Page: https://www.gane.ai/index/it/vendors/polyfills-io

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| [Content delivery networks](https://www.gane.ai/index/it/network/content-delivery-networks/index.md) | 0% | 25 | 0% | 1 |

## What the models said for it

- "Use alternative polyfill sources (like `polyfills.io` from Financial Times or Cloudflare's hosted version)" (DeepSeek V4 Flash, CDN)

## By model

| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 0 | 0 | 0 | 0 | 0 |
| GPT-5.4 mini | 0 | 0 | 0 | 0 | 0 |
| Gemini 3.5 Flash | 0 | 0 | 0 | 0 | 0 |
| Perplexity Sonar | 0 | 0 | 0 | 0 | 0 |
| Grok 4.20 | 0 | 0 | 0 | 0 | 0 |
| Mistral Small | 0 | 0 | 0 | 0 | 0 |
| DeepSeek V4 Flash | 0 | 1 | 0 | 0 | 1 |
| Llama 4 Maverick | 0 | 0 | 0 | 0 | 0 |
| Qwen 3.7 Flash | 0 | 0 | 0 | 0 | 0 |
| Kimi K2 | 0 | 0 | 0 | 0 | 0 |
| GLM 4.7 FlashX | 0 | 0 | 0 | 0 | 0 |
| MiniMax M2.5 | 0 | 0 | 0 | 0 | 0 |
| GPT-6 Luna | 0 | 0 | 0 | 0 | 0 |
| Muse Glimmer 30B | 0 | 0 | 0 | 0 | 0 |

## Sources returned with these answers

The sites and pages cited by the answers that named polyfills.io, from 1 of the 1 answers that named it (only the models that return a source list).

### Domains cited

- agid.gov.it: 1
- arp242.net: 1
- azion.com: 1
- blog.blazingcdn.com: 1
- blog.huli.tw: 1
- cdnjs.com: 1
- censys.com: 1
- cloudinary.com: 1
- dl.acm.org: 1
- fastly.com: 1

### Pages cited

- https://agid.gov.it/en/news/polyfillio-cert-agid-advises-public-administrations-quickly-remove-it-their-sites-0: 1
- https://arp242.net/cdn.html: 1
- https://azion.com/en/learning/cdn/multi-cdn-strategy: 1
- https://blog.blazingcdn.com/en-us/comparative-analysis-of-top-cdn-providers-in-2024: 1
- https://blog.huli.tw/2021/08/22/en/cdnjs-and-supply-chain-attack: 1
- https://cdnjs.com/about: 1
- https://censys.com/blog/july-2-polyfill-io-supply-chain-attack-digging-into-the-web-of-compromised-domains: 1
- https://cloudinary.com/blog/cloudinarys-multi-cdn-approach-the-whole-is-greater-than-the-sum-of-its-parts: 1

## Record

- Method: https://www.gane.ai/index/it/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/it.