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 |
|---|---|---|---|
| orpatgroup.com | #682,289 | Cloudflare, Cloudflare edge/CDN, Google Ads Conversion + 9 more | Find emails |
| famguardian.org | #682,977 | Font Awesome, Let's Encrypt, Nginx + 6 more | Find emails |
| ubuntu.pl | #683,216 | Disqus, Fancybox, Font Awesome + 8 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| report-it.org.uk | #683,248 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 7 more | Find emails |
| brownalumnimagazine.com | #683,407 | Campaign Monitor, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| acelocalseo.com | #683,651 | Font Awesome, Google Fonts, Let's Encrypt + 4 more | Find emails |
| akira.lk | #683,692 | Cloudflare, Google Analytics, Google Fonts + 12 more | Find emails |
| printerpoint.co.in | #683,721 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 13 more | Find emails |
| bcwebnet.com | #683,809 | Apache, Font Awesome, Google Fonts + 3 more | Find emails |
| johner-institut.de | #683,851 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 16 more | Find emails |
| emserver.net | #683,996 | Google Analytics, Google Tag Manager, Hatena Bookmark + 7 more | Find emails |
| 4coloured.skin | #684,195 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 11 more | Find emails |
| unocomms.us | #684,250 | Google Analytics, Let's Encrypt, Matomo + 3 more | Find emails |
| ucel.edu.ar | #684,394 | All in One SEO, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| jazaentendencias.com | #684,668 | Bootstrap, Cloudflare, Cloudflare Bot Management + 11 more | Find emails |
| zandijk.com | #684,704 | Bootstrap, Font Awesome, Google Fonts + 8 more | Find emails |
| skyepeptides.com | #684,781 | Cloudflare, Cloudflare Turnstile, Cloudflare edge/CDN + 15 more | Find emails |
| uno.net.uk | #684,797 | Google Analytics, Let's Encrypt, Matomo + 3 more | Find emails |
| lechim-zapoy.ru | #685,074 | Backbone.js, Let's Encrypt, Nginx + 3 more | Find emails |
| happysteppy.pk | #685,282 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 8 more | Find emails |
| topsportsjerseys.com | #685,428 | All in One SEO, Backbone.js, Bootstrap + 11 more | Find emails |
| shelburnemuseum.org | #685,945 | Cloudflare Bot Management, Cloudflare edge/CDN, Font Awesome + 12 more | Find emails |
| model-folio.com | #685,958 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 more | Find emails |
| evvida.co.uk | #686,007 | Font Awesome, Google Workspace, Hostinger + 6 more | Find emails |
| myrtlebeachsc.com | #686,054 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 10 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 →