JavaScript Library & Framework
6,289 of the 1,000,000 top sites in our Tranco top-1M census run Underscore.js (0.6%). A utility JavaScript library providing functional helper methods for working with arrays, objects, and functions. Detection is homepage-level HTML/header fingerprinting, so a site can run Underscore.js on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | uk.com | #532 (Tranco) | Find emails |
| 2 | washington.edu | #773 (Tranco) | Find emails |
| 3 | eu.com | #891 (Tranco) | Find emails |
| 4 | us.com |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| usmanbedsandcarpets.co.uk | #422,758 | Font Awesome, Google Fonts, Let's Encrypt + 6 more | Find emails |
| reviewofophthalmology.com | #422,777 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| fovissste.gob.mx | #422,888 | Font Awesome, Google Ads Conversion, Google Analytics + 13 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| werun.world | #423,103 | Apache, Font Awesome, Google AdSense + 10 more | Find emails |
| duran-subastas.com | #423,158 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 14 more | Find emails |
| sanko-bazaar.jp | #423,189 | Amazon (ACM), Amazon Route 53, Backbone.js + 13 more | Find emails |
| gloap.net | #423,231 | Let's Encrypt, Nginx, Telegram + 2 more | Find emails |
| onegreenworld.com | #423,337 | Bootstrap, Font Awesome, Google Fonts + 14 more | Find emails |
| lifecellskin.com | #423,384 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| esbroadcast.com | #423,469 | DataTables, Font Awesome, Google Fonts + 10 more | Find emails |
| elly.vn | #423,471 | Cloudflare, Criteo, DigitalOcean Spaces + 11 more | Find emails |
| guestpostlinks.net | #424,508 | ClickCease, Cloudflare, Cloudflare edge/CDN + 14 more | Find emails |
| wptranslationday.org | #424,745 | Branch, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| pragmatika.media | #424,751 | Fancybox, Google AdSense, Google Tag Manager + 7 more | Find emails |
| artcloud.com | #424,835 | AOS, Amazon Route 53, Azure API Management + 18 more | Find emails |
| hygger-online.com | #424,940 | All in One SEO, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| ergodirekt.de | #424,966 | Adobe Experience Cloud (Launch), Adobe Experience Manager Edge Delivery (Helix RUM), Amazon (ACM) + 4 more | Find emails |
| pokemonsleep.net | #425,069 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| ambarella.com | #425,135 | Azure DNS, Google Fonts, Google Tag Manager + 10 more | Find emails |
| etokavkaz.ru | #425,351 | AngularJS, Font Awesome, LiveInternet (Yadro) + 7 more | Find emails |
| mashupmd.com | #425,447 | AddToAny, Bootstrap, Cloudflare + 17 more | Find emails |
| servio.support | #425,565 | Cloudflare, Fancybox, Google Hosted Libraries + 7 more | Find emails |
| motot.net | #425,757 | Apache, Bootstrap, Feedburner + 8 more | Find emails |
| drogueriaharwar.com.co | #425,850 | All in One SEO, Apache, Bootstrap + 6 more | Find emails |
| bowwowinsurance.com.au | #426,023 | AngularJS, Azure Front Door, Backbone.js + 15 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 →