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 |
|---|---|---|---|
| theoldhouselife.com | #370,234 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 10 more | Find emails |
| solomusicgear.com | #370,278 | AOS, Cloudflare, Cloudflare edge/CDN + 12 more | Find emails |
| americanprairie.org | #370,367 | Backbone.js, Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| redseafish.com | #370,480 | Backbone.js, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| cubesugar.com | #370,805 | Amazon (ACM), Amazon Route 53, Backbone.js + 10 more | Find emails |
| hudsonvalleyone.com | #370,877 | All in One SEO, Font Awesome, Google Analytics + 13 more | Find emails |
| letsgonerd.com | #370,983 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| folkalley.com | #370,987 | Amazon Route 53, Backbone.js, DoubleClick (Google Ads) + 16 more | Find emails |
| nolimit.id | #371,069 | Bootstrap, Cloudflare, Font Awesome + 18 more | Find emails |
| kaioland.com | #371,222 | Cloudflare, Font Awesome, GTranslate + 12 more | Find emails |
| vervetimes.com | #371,333 | Branch, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| ride-ticketing.de | #371,453 | Apache, Backbone.js, Font Awesome + 3 more | Find emails |
| calkids.org | #371,864 | Ahrefs Analytics, Cloudflare, Cloudflare Bot Management + 11 more | Find emails |
| employbahamians.com | #372,037 | Apache, Bootstrap, Feedburner + 13 more | Find emails |
| sakharov-center.ru | #372,058 | Drupal, Font Awesome, Google Fonts + 6 more | Find emails |
| offbeat.com | #372,143 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 12 more | Find emails |
| 440hz.my | #372,295 | Font Awesome, Google AdSense, Google Site Kit + 10 more | Find emails |
| puresuppl.net | #372,315 | Cloudflare, Cloudflare Turnstile, Cloudflare edge/CDN + 13 more | Find emails |
| coupontoaster.com | #372,336 | AOS, Bootstrap, Cloudflare + 17 more | Find emails |
| rockawave.com | #372,412 | AddToAny, All in One SEO, Apache + 13 more | Find emails |
| oupchina.com.hk | #372,452 | Adobe Fonts, Adobe Fonts (Typekit), Amazon Route 53 + 12 more | Find emails |
| radialeng.com | #372,587 | Bootstrap, Cloudflare, Cloudflare Turnstile + 12 more | Find emails |
| uinterview.com | #372,993 | AMP for WP, Cloudflare, Cloudflare edge/CDN + 22 more | Find emails |
| singapore.com | #373,093 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 11 more | Find emails |
| luxeperf.com | #373,502 | Font Awesome, Gravatar, Hostinger + 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 →