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 |
|---|---|---|---|
| thebloodsugardiet.com | #277,129 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Analytics + 8 more | Find emails |
| elisiontec.com | #277,184 | AOS, AddToAny, Backbone.js + 11 more | Find emails |
| bhoppro.com | #277,241 | Cloudflare, Google Workspace, Let's Encrypt + 7 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| alachuacounty.us | #277,767 | ASP.NET, AngularJS, Dynatrace + 12 more | Find emails |
| digitar.net | #278,155 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 12 more | Find emails |
| lappwagons.com | #278,218 | CleanTalk, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| pdnegocios.cl | #278,250 | Bootstrap, Font Awesome, Google Analytics + 12 more | Find emails |
| piqs.de | #278,372 | Font Awesome, Google Analytics, Google Fonts + 8 more | Find emails |
| teambonding.com | #278,660 | AOS, Bootstrap, Cloudflare + 16 more | Find emails |
| linuxtag.org | #278,817 | Apache, Font Awesome, Google Fonts + 3 more | Find emails |
| rendeljkinait.hu | #278,946 | Ahrefs Analytics, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| calcoastnews.com | #278,972 | Apache, DoubleClick (Google Ads), Feedburner + 7 more | Find emails |
| eejournal.com | #278,988 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 14 more | Find emails |
| library.sk | #279,418 | Apache, Bootstrap, Font Awesome + 8 more | Find emails |
| primelending.com | #279,497 | ASP.NET, Adobe Fonts (Typekit), Bootstrap + 24 more | Find emails |
| biaman.pl | #279,685 | Apache, Cloudflare Turnstile, Font Awesome + 7 more | Find emails |
| refworks.com | #279,845 | ASP.NET, Amazon (ACM), AngularJS + 7 more | Find emails |
| datos-insights.com | #280,028 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| leadsbridge.com | #280,836 | Adobe Fonts (Typekit), Amazon CloudFront, Cloudflare + 20 more | Find emails |
| reech.com | #280,885 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| cashkurs.com | #280,910 | Apache, Backbone.js, Font Awesome + 9 more | Find emails |
| psxextreme.com | #281,559 | AppNexus, BidSwitch, Cloudflare + 12 more | Find emails |
| bcr.com.ar | #281,746 | Cloudflare, Drupal, Google Analytics + 9 more | Find emails |
| rnmanagers.com | #281,825 | Apache, Font Awesome, Google Fonts + 9 more | Find emails |
| ride1up.com | #282,180 | AddToAny, Ahrefs Analytics, Bootstrap + 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 →