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 |
|---|---|---|---|
| khanemostanad.ir | #915,379 | Apache, Bootstrap, Font Awesome + 8 more | Find emails |
| naturaldog.com | #918,263 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 15 more | Find emails |
| ellisonyoung.com | #919,994 | Cloudflare edge/CDN, Judge.me, Let's Encrypt + 5 more | Find emails |
| #4,979 (Tranco) |
| Find emails |
| 5 | toptoon.com | #9,168 (Tranco) | Find emails |
| upscaleconsignment.com | #920,535 | Cloudflare edge/CDN, Flodesk, Google Hosted Libraries + 6 more | Find emails |
| brightful.me | #920,986 | Amplitude, Bootstrap, Cloudflare + 13 more | Find emails |
| arraspaysdartois.com | #921,756 | Apache, Google Analytics, Google Fonts + 11 more | Find emails |
| scat.su | #923,079 | Google Ads Conversion, Google Analytics, Google Fonts + 12 more | Find emails |
| westernasset.com | #924,252 | Adobe Experience Cloud (Launch), Bootstrap, Brightcove + 18 more | Find emails |
| agendasenzuala.com | #927,302 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| faitpastafarouche.com | #932,399 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| flirtstate.com | #932,719 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| iptvpulse.top | #935,006 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| nuestrossecretos.com | #939,517 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| pensamentodeprazer.com | #940,798 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| philtesting.com | #940,953 | ASP.NET, Bootstrap, DigiCert + 5 more | Find emails |
| provocami.com | #941,615 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| severinelapaye.com | #943,338 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| thesrzone.com | #945,129 | Blogger, Bootstrap, Cloudflare + 3 more | Find emails |
| tobiasandtheangel.com | #945,298 | LiteSpeed, PHP, Sectigo + 1 more | Find emails |
| umusthaveusa.com | #946,067 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 12 more | Find emails |
| wearevita.com | #946,889 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| uniontokyo.jp | #948,683 | Adobe Fonts (Typekit), Cloudflare edge/CDN, DataSign + 15 more | Find emails |
| cipdawards.co.uk | #948,826 | DoubleClick (Google Ads), Fastly, Google Publisher Tag + 4 more | Find emails |
| saipon.jp | #950,336 | Google Analytics, Google Tag Manager, Let's Encrypt + 6 more | Find emails |
| havalab.com | #950,345 | Alibaba Cloud CDN, Awin, Cloudflare + 9 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 →