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 |
|---|---|---|---|
| 6chic.net | #360,398 | Bootstrap, Fancybox, Font Awesome + 8 more | Find emails |
| tenniswarehouse.com.au | #361,322 | Afterpay, Bootstrap, Cloudflare + 12 more | Find emails |
| melodysusie.com | #361,459 | Bootstrap, Cloudflare edge/CDN, Google Ads Conversion + 8 more | Find emails |
| #4,979 (Tranco) |
| Find emails |
| 5 | toptoon.com | #9,168 (Tranco) | Find emails |
| alessntials.com | #363,010 | Cloudflare edge/CDN, Google Hosted Libraries, Google Maps + 7 more | Find emails |
| zerofoxtrot.com | #365,367 | Adobe Fonts (Typekit), Cloudflare edge/CDN, Google Ads Conversion + 16 more | Find emails |
| roottcostore.com | #365,540 | Cloudflare, Cloudflare edge/CDN, GoAffPro + 12 more | Find emails |
| danielsjewelers.com | #367,669 | Cloudflare edge/CDN, Extend, Google Fonts + 9 more | Find emails |
| genemco.com | #368,591 | Cloudflare, Cloudflare edge/CDN, Google Hosted Libraries + 12 more | Find emails |
| homify.sg | #372,764 | Amazon Route 53, Bunny CDN, BunnyCDN + 9 more | Find emails |
| homify.co.kr | #373,941 | Amazon Route 53, Bunny CDN, BunnyCDN + 10 more | Find emails |
| tokai.jp | #378,573 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 9 more | Find emails |
| bvb-alyans.ru | #380,435 | Bootstrap, Cloudflare, Let's Encrypt + 4 more | Find emails |
| addictedtoaudio.com.au | #380,909 | Cloudflare edge/CDN, Google Ads Conversion, Google Analytics + 13 more | Find emails |
| welovedoodles.com | #383,643 | AOS, Bootstrap, Cloudflare + 14 more | Find emails |
| xshell.com | #384,888 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 6 more | Find emails |
| lustundverlangen.com | #386,359 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| homify.com.my | #388,207 | Amazon Route 53, Bunny CDN, BunnyCDN + 9 more | Find emails |
| partsource.ca | #389,046 | Bazaarvoice, Cloudflare edge/CDN, Font Awesome + 14 more | Find emails |
| unionstation.org | #390,455 | Cloudflare, Cloudflare edge/CDN, Elementor + 12 more | Find emails |
| umczdt.ru | #391,016 | Bitrix, Google Fonts, Let's Encrypt + 7 more | Find emails |
| cerqular.com | #392,025 | Afterpay, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| homify.ph | #392,298 | Amazon Route 53, Bunny CDN, BunnyCDN + 9 more | Find emails |
| homify.ca | #392,349 | Amazon Route 53, Bunny CDN, BunnyCDN + 9 more | Find emails |
| taketours.com | #394,395 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| digitalrev.com | #394,907 | Cloudflare edge/CDN, Google Maps, Let's Encrypt + 5 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 →