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 |
|---|---|---|---|
| 31sumai.com | #448,454 | Adobe Experience Cloud (Launch), Amazon (ACM), Amazon Route 53 + 5 more | Find emails |
| lexpert.ca | #448,755 | ASP.NET, Algolia, Bootstrap + 14 more | Find emails |
| glamrap.pl | #448,760 | Font Awesome, Google AdSense, Google Analytics + 9 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| linformaticien.com | #448,791 | AddThis, Bootstrap, Branch + 20 more | Find emails |
| theracingforum.co.uk | #448,856 | Backbone.js, Google Analytics, Google Tag Manager + 7 more | Find emails |
| ecoweb.ch | #448,864 | Apache, Font Awesome, Google Analytics + 11 more | Find emails |
| softwaretesters.net | #448,908 | Backbone.js, Daum, Endurance International Group + 7 more | Find emails |
| licensedpeptides.com | #449,036 | Bootstrap, Brevo, ClickTale (Contentsquare) + 19 more | Find emails |
| lumorachemicals.com | #449,123 | Fancybox, Font Awesome, Google Analytics + 11 more | Find emails |
| rmsmotoring.com | #449,218 | Backbone.js, Cloudflare, Cloudflare edge/CDN + 14 more | Find emails |
| electsalesusa.com | #449,459 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 12 more | Find emails |
| vnutri.org | #449,558 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| wellesnet.com | #450,215 | AddToAny, Blogger, Endurance International Group + 7 more | Find emails |
| bestmaps.ru | #450,250 | Backbone.js, Let's Encrypt, Nginx + 4 more | Find emails |
| buildit.co.za | #450,384 | ASP.NET, Azure Front Door, Bootstrap + 19 more | Find emails |
| bphope.com | #450,418 | Backbone.js, Cloudflare, Cloudflare Bot Management + 7 more | Find emails |
| christianforums.net | #450,503 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 more | Find emails |
| knockshrine.ie | #450,573 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 14 more | Find emails |
| videochatforum.ro | #450,720 | Apache, Backbone.js, Bootstrap + 12 more | Find emails |
| advermind.com | #450,838 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 14 more | Find emails |
| bchl.ca | #450,943 | AngularJS, Cloudflare, Cloudflare Bot Management + 13 more | Find emails |
| eu-interact.org | #451,095 | AddThis, Backbone.js, Google Analytics + 10 more | Find emails |
| greenroofs.com | #451,155 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 11 more | Find emails |
| ilaks.no | #451,171 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 11 more | Find emails |
| blazysusan.com | #451,501 | Cloudflare Bot Management, Cloudflare edge/CDN, Elementor + 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 →