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 |
|---|---|---|---|
| neighbourlyflirts.com | #810,180 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| newnaughtyneighbors.com | #810,558 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| nextdoorfling.com | #810,668 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| #4,979 (Tranco) |
| Find emails |
| 5 | toptoon.com | #9,168 (Tranco) | Find emails |
| nezbednezelania.com | #810,713 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| niktsieniedowie.com | #810,959 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| novaznamost.com | #811,598 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| onjasecesoir.com | #813,202 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| orimoigeitones.com | #813,799 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| otwarcinaromans.com | #814,132 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| ozzyfling.com | #814,365 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| palaisdeflirt.com | #814,746 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| passionivicine.com | #815,322 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| pecado2secreto.com | #815,766 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| pecadosenlinea.com | #815,767 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| piaceresegreto.com | #816,694 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| pickyourfling.com | #816,746 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| pikantneprzygody.com | #816,822 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| pirrigt.com | #816,980 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| planetamilosci.com | #817,243 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| polskiesingielki.com | #817,995 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| poprostuflirt.com | #818,110 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| potrivirerapida.com | #818,463 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| prendresonpieds.com | #818,801 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| proximiteplaisir.com | #819,430 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| radardeligues.com | #820,763 | 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 →