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 |
|---|---|---|---|
| nationaltheatre.bg | #507,479 | Apache, Google Fonts, Google Workspace + 4 more | Find emails |
| homify.cl | #507,824 | Amazon Route 53, Bunny CDN, BunnyCDN + 9 more | Find emails |
| homify.com.co | #508,811 | Amazon Route 53, Bunny CDN, BunnyCDN + 9 more | Find emails |
| #4,979 (Tranco) |
| Find emails |
| 5 | toptoon.com | #9,168 (Tranco) | Find emails |
| texanscu.org | #509,000 | ASP.NET, Adobe Fonts (Typekit), ArtsAI (Adxcel) + 11 more | Find emails |
| atarashiichizu.com | #509,961 | Amazon (ACM), Amazon Route 53, Bootstrap + 7 more | Find emails |
| ghxeurope.com | #510,626 | ASP.NET, Bootstrap, Brightcove + 11 more | Find emails |
| grobest.com | #512,206 | Apache, GSAP, Google Tag Manager + 11 more | Find emails |
| confianca.com.br | #513,565 | Cloudflare, DigiCert, Google Fonts + 7 more | Find emails |
| st-agni.com | #515,421 | Cloudflare edge/CDN, Font Awesome, Global-e + 16 more | Find emails |
| deutschlandflirten.de | #516,045 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| homify.com.ve | #516,559 | Amazon Route 53, Bunny CDN, BunnyCDN + 9 more | Find emails |
| kingsofneon.nz | #519,396 | Cloudflare edge/CDN, Font Awesome, Google Ads Conversion + 10 more | Find emails |
| kzgroup.ru | #519,811 | Bitrix, Google Fonts, Meta Pixel + 8 more | Find emails |
| fraueninmeinernaehe.com | #520,542 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| scharfefantasien.com | #523,290 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| reifenachbarn.com | #523,433 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| sinnlichebegierde.com | #523,461 | Apache, Font Awesome, Google Tag Manager + 4 more | Find emails |
| tirana.al | #524,152 | ASP.NET, Cloudflare, Cloudflare Web Analytics + 13 more | Find emails |
| homify.fr | #525,454 | Amazon Route 53, Bunny CDN, BunnyCDN + 9 more | Find emails |
| matchafter50.com | #526,913 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| ecom-ex.com | #528,869 | DigiCert, Font Awesome, Google Analytics + 6 more | Find emails |
| samsungbiologics.com | #530,220 | AOS, Cloudflare Bot Management, Cloudflare edge/CDN + 6 more | Find emails |
| dmarkbio.com | #530,669 | Cloudflare edge/CDN, Google Maps, Let's Encrypt + 6 more | Find emails |
| flirtgleich.com | #531,464 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| tycket.com.br | #531,940 | Criteo, Fancybox, Font Awesome + 12 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 →