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 |
|---|---|---|---|
| fotolog.net | #312,757 | Google Fonts, Let's Encrypt, Nginx + 4 more | Find emails |
| senalcolombia.tv | #312,990 | Adobe Experience Cloud (Launch), Amazon (ACM), Amazon CloudFront + 10 more | Find emails |
| umfc.com | #313,031 | Apache, Font Awesome, Foundation + 12 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| ndo.co.uk | #313,259 | Apache, Google Tag Manager, Sectigo + 3 more | Find emails |
| edunao.com | #313,383 | Apache, Cookiebot, Google Analytics + 12 more | Find emails |
| pelisplay.cfd | #313,573 | Backbone.js, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| ewwr.eu | #313,721 | Apache, Google Analytics, Google Fonts + 8 more | Find emails |
| fuentesinformadas.com | #314,063 | Backbone.js, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| tchiweka.org | #314,087 | AddToAny, Drupal, Google Analytics + 6 more | Find emails |
| pierrot.jp | #314,145 | Font Awesome, Google Analytics, Google Fonts + 8 more | Find emails |
| educebook.com | #314,189 | Bootstrap, Cloudflare, Cloudflare Bot Management + 11 more | Find emails |
| israeled.org | #314,196 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| laspi.com | #314,229 | Apache, Backbone.js, Bootstrap + 5 more | Find emails |
| bellacaledonia.org.uk | #314,490 | AddToAny, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| televoips.com | #314,740 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 16 more | Find emails |
| compravivienda.com | #314,744 | Font Awesome, Foundation, Google Fonts + 8 more | Find emails |
| eurogroupforanimals.org | #314,754 | ConsentMo, Drupal, Font Awesome + 5 more | Find emails |
| premiumsound.co.uk | #314,772 | Awin, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| nextion.tech | #314,873 | AddToAny, Ionic Framework, Let's Encrypt + 6 more | Find emails |
| trafficjamcar.com | #314,958 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| gratefulweb.com | #315,246 | AOS, All in One SEO, Bootstrap + 15 more | Find emails |
| sonusnet.com | #315,266 | AOS, Azure DNS, Bootstrap + 21 more | Find emails |
| datapilvi.fi | #315,573 | Apache, Backbone.js, Bootstrap + 9 more | Find emails |
| argandadelrey.es | #315,679 | Apache, Bootstrap, DataTables + 11 more | Find emails |
| solutions-numeriques.com | #315,749 | Font Awesome, Google Fonts, Let's Encrypt + 7 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 →