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 |
|---|---|---|---|
| hmvmania.com | #163,917 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| divine-id.com | #164,013 | Google Site Kit, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| primayahospital.com | #164,389 | Bootstrap, Font Awesome, Google Analytics + 12 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| armaghi.com | #164,704 | Apache, Bootstrap, DoubleClick (Google Ads) + 13 more | Find emails |
| opengov.gr | #165,018 | Apache, Bootstrap, DigiCert + 8 more | Find emails |
| maxwellleadership.com | #165,276 | AOS, AddToAny, All in One SEO + 24 more | Find emails |
| ic-net.or.jp | #165,331 | All in One SEO, DigiCert, Font Awesome + 8 more | Find emails |
| sturmfunke.org | #165,403 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| disasterphilanthropy.org | #165,720 | Backbone.js, Cloudflare, Cloudflare Bot Management + 10 more | Find emails |
| bourgognefranchecomte.fr | #166,235 | Apache, Bootstrap, Drupal + 5 more | Find emails |
| ras.ac.uk | #166,254 | Apache, Backbone.js, Bootstrap + 10 more | Find emails |
| log24.pl | #166,308 | Bootstrap, Font Awesome, Google Analytics + 10 more | Find emails |
| cloudamize.com | #166,473 | Amazon Route 53, Bizible, Cloudflare Bot Management + 14 more | Find emails |
| motocrosscenter.com | #166,604 | Adobe Fonts (Typekit), Bootstrap, Cloudflare + 17 more | Find emails |
| nexos.com.mx | #166,778 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Turnstile + 16 more | Find emails |
| globalpolicyjournal.com | #167,000 | AddToAny, Bluesky, Cloudflare + 10 more | Find emails |
| odrive.com | #167,169 | Amazon Route 53, Google Analytics, Google Cloud + 5 more | Find emails |
| piano-p.com | #167,232 | Adobe Fonts (Typekit), All in One SEO, Font Awesome + 9 more | Find emails |
| canshop.jp | #167,391 | Amazon (ACM), Amazon Route 53, Backbone.js + 16 more | Find emails |
| geopoll.com | #167,666 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| seatcupra.net | #167,714 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 12 more | Find emails |
| wng.ch | #167,909 | Adobe Fonts (Typekit), Apache, Google Tag Manager + 12 more | Find emails |
| explorer-magazin.com | #167,990 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 8 more | Find emails |
| weingaertner-it.de | #167,996 | All in One SEO, Let's Encrypt, Nginx + 4 more | Find emails |
| ringier-advertising.ch | #168,061 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 8 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 →