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.
Other javascript library & framework
| # | 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 |
|---|---|---|---|
| theguardian.com | #192 | DoubleClick (Google Ads), Fastly, Google Publisher Tag + 4 more | Find emails |
| guardian.co.uk | #2,366 | DoubleClick (Google Ads), Fastly, Google Publisher Tag + 4 more | Find emails |
| thehindu.com | #2,899 | Bootstrap, Chartbeat, Cloudflare + 11 more | Find emails |
| #4,979 (Tranco) |
| Find emails |
| 5 | toptoon.com | #9,168 (Tranco) | Find emails |
| bancointer.com.br | #4,979 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 5 more | Find emails |
| toptoon.com | #9,168 | Amazon (ACM), Amazon Route 53, Daum + 11 more | Find emails |
| thehindubusinessline.com | #12,175 | Amazon Advertising, Bootstrap, Chartbeat + 13 more | Find emails |
| spectrumvoip.com | #12,782 | AWS Lambda, Amazon CloudFront, Atlassian Cloud + 21 more | Find emails |
| appcues.com | #14,376 | AWS Lambda, Amazon CloudFront, Amazon Route 53 + 25 more | Find emails |
| boddlelearning.com | #16,915 | AWS Lambda, Amazon Route 53, Atlassian Statuspage + 20 more | Find emails |
| radarbox.com | #23,501 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 2 more | Find emails |
| xdrig.com | #24,809 | — | Find emails |
| airnavradar.com | #31,964 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 2 more | Find emails |
| teamo.ru | #32,943 | Cloudflare, Nginx, Owl Carousel + 5 more | Find emails |
| fera.ai | #32,956 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 15 more | Find emails |
| hobbyking.com | #34,332 | Ahrefs Analytics, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| patephone.com | #38,294 | Google Fonts, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| golfdigest.co.jp | #39,839 | Amazon Advertising, Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| rhodeskin.com | #48,765 | Cloudflare edge/CDN, Convert, Google Ads Conversion + 15 more | Find emails |
| embl.org | #48,986 | Apache, Bluesky, Google Analytics + 6 more | Find emails |
| itctel.com | #52,191 | Adobe Fonts (Typekit), Apache, Bootstrap + 8 more | Find emails |
| accuradio.com | #52,821 | Cloudflare, Cloudflare edge/CDN, Ensighten + 11 more | Find emails |
| j-wave.co.jp | #54,839 | Amazon CloudFront, Apache, DoubleClick (Google Ads) + 7 more | Find emails |
| homify.com | #57,256 | Amazon Route 53, Bunny CDN, BunnyCDN + 9 more | Find emails |
| asisonline.org | #58,143 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 9 more | Find emails |
| jolly.me | #63,323 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 1 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 →