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 |
|---|---|---|---|
| cerocwaikato.co.nz | #860,188 | Apache, Google Fonts, Let's Encrypt + 5 more | Find emails |
| oniggroup.com | #860,444 | Elementor, Let's Encrypt, Nginx + 4 more | Find emails |
| urestfoam.com | #860,591 | Bootstrap, Google Fonts, Hostinger + 10 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| nwipbank.ru | #860,733 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| radiofree.org | #860,834 | Font Awesome, Google Fonts, Leaflet + 8 more | Find emails |
| thelilcrafts.com | #860,893 | Font Awesome, Google Fonts, Hostinger + 9 more | Find emails |
| plantvine.com | #861,035 | All in One SEO, Amazon Route 53, Apache + 7 more | Find emails |
| aguadecoco.com.br | #861,559 | Amazon CloudFront, Bootstrap, Cloudflare + 22 more | Find emails |
| andylock.co.uk | #861,990 | AOS, Adobe Fonts (Typekit), Apache + 6 more | Find emails |
| cityofmoore.com | #862,078 | Cloudflare, Cloudflare edge/CDN, Drupal + 7 more | Find emails |
| rags.lv | #862,145 | CookieYes, Fancybox, Font Awesome + 12 more | Find emails |
| glazev.ru | #862,177 | Font Awesome, Let's Encrypt, Nginx + 6 more | Find emails |
| cheyney.edu | #862,191 | Azure DNS, Bootstrap, Elementor + 14 more | Find emails |
| dudleyzoo.org.uk | #862,215 | Bluesky, Google Hosted Libraries, Google Tag Manager + 10 more | Find emails |
| logiclink.com | #862,216 | Apache, Google Fonts, Ionic Framework + 9 more | Find emails |
| rentlinx.com | #862,264 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 4 more | Find emails |
| atlasseed.com | #862,316 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 13 more | Find emails |
| h-kyocera.co.jp | #862,394 | AddToAny, Amazon (ACM), Apache + 7 more | Find emails |
| kpbsd.org | #862,419 | Backbone.js, Fancybox, Font Awesome + 5 more | Find emails |
| zikaron.it | #862,511 | Let's Encrypt, Nginx, SiteGround + 6 more | Find emails |
| ihs-headache.org | #862,796 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| proswimwear.eu | #863,239 | Cloudflare, Cloudflare edge/CDN, Flying Press + 14 more | Find emails |
| holmescc.edu | #863,258 | Apache, Azure DNS, Bootstrap + 17 more | Find emails |
| manhattantimesnews.com | #863,293 | Google AdSense, Google Analytics, Google Fonts + 10 more | Find emails |
| allthingscruise.com | #863,366 | Backbone.js, Font Awesome, Google Fonts + 5 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 →