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 |
|---|---|---|---|
| nyfa.edu | #89,767 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| fastlnk.ru | #90,032 | Google Analytics, Google Tag Manager, Gravatar + 8 more | Find emails |
| ethizo.com | #90,258 | Cloudflare Bot Management, Cloudflare edge/CDN, Cloudinary + 10 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| lyoncapitale.fr |
| #90,403 |
| AddToAny, Backbone.js, ConsentMo + 17 more |
| Find emails |
| restosducoeur.org | #90,595 | Apache, DoubleClick (Google Ads), Google Analytics + 10 more | Find emails |
| toontrack.com | #91,088 | Backbone.js, Bootstrap, Cookie Information + 10 more | Find emails |
| paidinsurance.in | #91,217 | Backbone.js, Font Awesome, Google Analytics + 7 more | Find emails |
| wcopremium.tv | #91,252 | Cloudflare, Cloudflare Turnstile, Cloudflare edge/CDN + 4 more | Find emails |
| penzeys.com | #91,358 | AngularJS, Azure API Management, Bootstrap + 10 more | Find emails |
| asibiliou.gr | #91,400 | Cloudflare, Cloudflare edge/CDN, Fathom + 11 more | Find emails |
| porno-klipovi.com | #91,501 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| 50states.com | #91,683 | Backbone.js, Bootstrap, Cloudflare + 8 more | Find emails |
| e-survey.go.jp | #91,779 | Bootstrap, DigiCert, Drupal + 2 more | Find emails |
| protogel90.com | #91,792 | Branch, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| lonab.bf | #91,997 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| kylottery.com | #92,355 | Azure Front Door, DigiCert, Google Ads Conversion + 15 more | Find emails |
| rushlimbaugh.com | #92,601 | Divi, Fancybox, Fastly + 12 more | Find emails |
| eishq.net | #93,493 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 5 more | Find emails |
| ezdriveohio.com | #93,556 | Font Awesome, Let's Encrypt, Microsoft 365 + 7 more | Find emails |
| inumet.gub.uy | #93,806 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| kedaiwinjitu.com | #93,909 | Branch, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| la80412.com | #93,974 | Branch, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| labiby.com | #93,975 | Backbone.js, Cloudflare edge/CDN, Google Analytics + 9 more | Find emails |
| milifestylemarketing.com | #94,121 | ASP.NET, Bootstrap, DigiCert + 13 more | Find emails |
| playlistforyou.com | #94,385 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 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 →