JavaScript Library & Framework
1,063 of the 1,000,000 top sites in our Tranco top-1M census run Polyfill.io (0.1%). A JavaScript polyfill service that served browser-compatibility shims to older or unsupported browsers from a CDN. Detection is homepage-level HTML/header fingerprinting, so a site can run Polyfill.io on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | theguardian.com | #192 (Tranco) | Find emails |
| 2 | guardian.co.uk | #2,366 (Tranco) | Find emails |
| 3 | thehindu.com | #2,899 (Tranco) | Find emails |
| 4 | bancointer.com.br |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| digiwin.com | #333,017 | Alibaba Cloud CDN, Axios, Citrix NetScaler + 10 more | Find emails |
| christmastimeuk.com | #333,846 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Web Analytics + 20 more | Find emails |
| custodyxchange.com | #334,358 | Google Analytics, Google Tag Manager, Let's Encrypt + 4 more | Find emails |
| #4,979 (Tranco) |
| Find emails |
| 5 | toptoon.com | #9,168 (Tranco) | Find emails |
| pedegoelectricbikes.com | #334,385 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 10 more | Find emails |
| getloyalty.io | #337,958 | Bootstrap, DDoS-Guard, Font Awesome + 7 more | Find emails |
| kupainc.com | #339,635 | Axios, Bootstrap, Chatra + 12 more | Find emails |
| homify.co.th | #341,071 | Amazon Route 53, Bunny CDN, BunnyCDN + 9 more | Find emails |
| shortlyst.com | #342,320 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 9 more | Find emails |
| fanhubmedia.com | #343,501 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| teppana.de | #344,435 | Cloudflare edge/CDN, Fancybox, Hotjar + 10 more | Find emails |
| shopsuki.ph | #344,643 | Cloudflare edge/CDN, Google Ads Conversion, Google Analytics + 13 more | Find emails |
| bankraya.co.id | #346,288 | AOS, Axios, Bootstrap + 13 more | Find emails |
| naha.org | #347,021 | Adobe Fonts (Typekit), Axios, Bootstrap + 17 more | Find emails |
| homify.hk | #348,255 | Amazon Route 53, Bunny CDN, BunnyCDN + 9 more | Find emails |
| nesfircroft.com | #349,036 | Azure API Management, Azure Front Door, Bootstrap + 11 more | Find emails |
| fanka.com | #349,852 | Attentive, Cloudflare edge/CDN, Google Ads Conversion + 11 more | Find emails |
| grind.co.uk | #351,245 | Adobe Fonts (Typekit), Cloudflare edge/CDN, Let's Encrypt + 3 more | Find emails |
| homify.pl | #352,194 | Amazon Route 53, Bunny CDN, BunnyCDN + 9 more | Find emails |
| lendwize.io | #353,754 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 7 more | Find emails |
| enewtondesign.com | #355,259 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 14 more | Find emails |
| arabamericannews.com | #356,108 | Bootstrap, DoubleClick (Google Ads), Google Analytics + 16 more | Find emails |
| snipesearch.co.uk | #356,551 | Bluesky, Bootstrap, Cloudflare + 10 more | Find emails |
| nex-pro.com | #356,682 | Amazon Route 53, Apache, Google Analytics + 8 more | Find emails |
| stevenage.gov.uk | #358,891 | Civic Cookie Control, Contensis, DigiCert + 6 more | Find emails |
| gardengatemagazine.com | #359,626 | Amazon (ACM), Amazon Route 53, Bootstrap + 13 more | Find emails |
From the Crawlora Website Tech Stack Dataset, a homepage-level fingerprint of a 1,000,000-domain Tranco top-1M census (run top1m-2026-08-25-full-v2), snapshot August 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →