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 |
|---|---|---|---|
| storeno6.com | #830,912 | Bootstrap, Cloudflare edge/CDN, Fancybox + 17 more | Find emails |
| stouteavonturen.com | #830,936 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| stouteduivels.com | #830,937 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| #4,979 (Tranco) |
| Find emails |
| 5 | toptoon.com | #9,168 (Tranco) | Find emails |
| sublimeaccesorios.com | #831,153 | Cloudflare edge/CDN, GSAP, Let's Encrypt + 10 more | Find emails |
| surpresassensuais.com | #831,747 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| sutoene.co.jp | #831,824 | Amazon Route 53, Google Tag Manager, Nginx + 2 more | Find emails |
| swisse.co.in | #832,053 | Alibaba Cloud DNS, Cloudflare edge/CDN, Font Awesome + 15 more | Find emails |
| tajnepusinky.com | #832,598 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| tajnetuzby.com | #832,599 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| taractara.com | #832,914 | Cloudflare edge/CDN, Google Analytics, Google Tag Manager + 9 more | Find emails |
| teerenpelit.com | #833,413 | Apache, Font Awesome, Google Fonts + 3 more | Find emails |
| tennmeg.com | #833,660 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| tessatissue.com | #833,781 | ASP.NET, DigiCert, Google Ads Conversion + 8 more | Find emails |
| thecococurls.com | #834,140 | Cloudflare edge/CDN, Google Ads Conversion, Google Analytics + 13 more | Find emails |
| thecurvves.com | #834,147 | Cloudflare edge/CDN, Google Tag Manager, Judge.me + 8 more | Find emails |
| thefabricstore.pk | #834,168 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 10 more | Find emails |
| thenoteshub.com | #834,347 | Apache, Bootstrap, Font Awesome + 11 more | Find emails |
| thestyleattic.co.uk | #834,461 | Cloudflare edge/CDN, Judge.me, Let's Encrypt + 7 more | Find emails |
| threadsandblocks.com | #834,597 | Cloudflare edge/CDN, Font Awesome, GoKwik + 15 more | Find emails |
| tolvutek.is | #835,473 | Apache, Cloudflare edge/CDN, CookieHub + 6 more | Find emails |
| trisu.in | #836,637 | Cloudflare edge/CDN, Google Analytics, Google Tag Manager + 13 more | Find emails |
| trouveunemure.com | #836,706 | Apache, Font Awesome, Google Tag Manager + 3 more | Find emails |
| uberabaimoveis.com.br | #837,659 | Axios, Bootstrap, Cloudflare + 9 more | Find emails |
| uitvaartcentrumlefevre.be | #838,006 | Adobe Fonts (Typekit), Craft CMS, Google Maps + 6 more | Find emails |
| uneedcargo.com | #838,327 | AOS, Bootstrap, Cloudflare + 13 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 →