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 |
|---|---|---|---|
| daan.tech | #566,180 | Cloudflare, Cloudflare edge/CDN, Consent Framework + 10 more | Find emails |
| id.sharp | #566,284 | DigiCert, Drupal, Google Analytics + 8 more | Find emails |
| agentreputation.net | #566,347 | Google Analytics, Google Tag Manager, Let's Encrypt + 6 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| avahr.com | #566,526 | ActiveCampaign, AddToAny, Adobe Fonts + 29 more | Find emails |
| bbking.com | #566,544 | Google Analytics, Google Fonts, Google Tag Manager + 9 more | Find emails |
| vivalivetv.com | #566,762 | Bootstrap, Fancybox, Font Awesome + 13 more | Find emails |
| nitto-kohki.co.jp | #566,763 | Amazon (ACM), Apache, Backbone.js + 7 more | Find emails |
| interactiveadvisors.com | #566,829 | Bootstrap, DigiCert, Modernizr + 3 more | Find emails |
| tyresandmore.com | #566,988 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 11 more | Find emails |
| tegelsinhuis.nl | #567,020 | Cloudflare Bot Management, Cloudflare edge/CDN, Font Awesome + 10 more | Find emails |
| fusionsystems.in | #567,153 | All in One SEO, Bootstrap, Font Awesome + 7 more | Find emails |
| hotscoped.com | #567,224 | Bootstrap, Google Analytics, Google Fonts + 8 more | Find emails |
| nichigopress.jp | #567,370 | Let's Encrypt, Nginx, Swiper + 3 more | Find emails |
| grayarea.org | #567,492 | Adobe Fonts (Typekit), Backbone.js, Cloudflare + 16 more | Find emails |
| koukladelights.com | #567,759 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| dungeonsanddragonsfan.com | #567,823 | Apache, Bluesky, Endurance International Group + 12 more | Find emails |
| thewebservers.net | #568,008 | Apache, Bootstrap, Google Hosted Libraries + 5 more | Find emails |
| kitkidsescolar.com.br | #568,013 | Cloudflare, DoubleClick (Google Ads), Font Awesome + 11 more | Find emails |
| arciserviziocivile.it | #568,359 | Bootstrap, ConsentMo, Drupal + 5 more | Find emails |
| studyrus.net | #568,489 | Bootstrap, Fancybox, Font Awesome + 8 more | Find emails |
| gtpstratus.com | #568,512 | Axios, Azure Front Door, Bootstrap + 8 more | Find emails |
| abtny.com | #568,619 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| foodmeanderings.com | #568,708 | Backbone.js, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| thisweekinvideogames.com | #569,301 | Bluesky, Cloudflare, Cloudflare edge/CDN + 12 more | Find emails |
| djistoremexico.com | #569,353 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 18 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 →