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 |
|---|---|---|---|
| shop2india.com | #474,228 | Cloudflare edge/CDN, Google Hosted Libraries, Google Maps + 7 more | Find emails |
| radarbox24.com | #477,571 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 2 more | Find emails |
| chiangmaicitylife.com | #478,730 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 6 more | Find emails |
| #4,979 (Tranco) |
| Find emails |
| 5 | toptoon.com | #9,168 (Tranco) | Find emails |
| rodiffymoissanite.com | #480,229 | Cloudflare edge/CDN, Google Hosted Libraries, Google Maps + 5 more | Find emails |
| nachbarsmatch.de | #480,796 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| sandyspringbank.com | #480,923 | ASP.NET, Azure API Management, Azure Front Door + 9 more | Find emails |
| fliteboard.com | #481,018 | Amazon Route 53, Cloudflare edge/CDN, DoubleClick (Google Ads) + 16 more | Find emails |
| cosmetic.cl | #482,802 | Cloudflare, Cloudflare edge/CDN, Google Ads Conversion + 8 more | Find emails |
| chataufriss.com | #485,599 | Apache, Font Awesome, Google Tag Manager + 4 more | Find emails |
| thefitville.uk | #489,402 | Cloudflare edge/CDN, Font Awesome, Google Ads Conversion + 16 more | Find emails |
| scharfeliebhaber.com | #491,382 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| homify.pe | #492,223 | Amazon Route 53, Bunny CDN, BunnyCDN + 9 more | Find emails |
| michfb.com | #492,963 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| jaki.co.uk | #494,243 | Attentive, Bootstrap, Cloudflare edge/CDN + 15 more | Find emails |
| burina.net | #495,817 | Google Analytics, Google Hosted Libraries, Let's Encrypt + 2 more | Find emails |
| bluequillangler.com | #496,106 | Cloudflare, Cloudflare edge/CDN, Judge.me + 8 more | Find emails |
| perfumedefrance.com | #497,002 | Afterpay, Cloudflare edge/CDN, Google Cloud DNS + 13 more | Find emails |
| 8base.com | #497,924 | AWS Lambda, Amazon CloudFront, Amazon Route 53 + 19 more | Find emails |
| njmls.com | #499,288 | AOS, ASP.NET, Fancybox + 11 more | Find emails |
| tabulosesverlangen.com | #500,110 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| flirtendenachbarn.com | #500,962 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| ucla.edu.ve | #502,452 | ASP.NET, Bootstrap, Font Awesome + 3 more | Find emails |
| artoftimeindia.com | #505,803 | Cloudflare edge/CDN, Google Analytics, Google Fonts + 12 more | Find emails |
| movesea.com | #507,366 | Cloudflare edge/CDN, Let's Encrypt, Shopify + 5 more | Find emails |
| aufregendeflirts.com | #507,377 | Apache, Font Awesome, Google Tag Manager + 3 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 →