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.
Other javascript library & framework
| # | 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 |
|---|---|---|---|
| 34sp.com | #12,153 | Adobe Fonts (Typekit), Bootstrap, Fathom + 10 more | Find emails |
| mist.com | #12,284 | Adobe Experience Cloud (Launch), Amazon CloudFront, Amazon Route 53 + 13 more | Find emails |
| control-webpanel.com | #12,797 | Bootstrap, Font Awesome, Google Analytics + 9 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| usal.es | #12,833 | Apache, Bluesky, Bootstrap + 5 more | Find emails |
| dazeddigital.com | #13,618 | ASP.NET, Akamai edge/CDN, Akamai mPulse + 7 more | Find emails |
| plosone.org | #14,559 | Apache, Bluesky, Cloudflare + 8 more | Find emails |
| sfsu.edu | #14,745 | Bootstrap, Drupal, Fastly + 11 more | Find emails |
| ae.org | #15,447 | Google Tag Manager, Let's Encrypt, Modernizr + 2 more | Find emails |
| se.net | #15,568 | Google Tag Manager, Let's Encrypt, Modernizr + 2 more | Find emails |
| udg.mx | #15,653 | Bootstrap, DigiCert, Drupal + 11 more | Find emails |
| hcn.health | #15,661 | Amazon Route 53, Bootstrap, Cloudflare Bot Management + 16 more | Find emails |
| counterpunch.org | #15,744 | AddToAny, Adobe Fonts (Typekit), Cloudflare + 19 more | Find emails |
| nationaltoday.com | #16,081 | AddToAny, Amazon Route 53, Cloudflare Bot Management + 16 more | Find emails |
| magcloud.com | #16,150 | ASP.NET, Adobe Fonts (Typekit), Amazon (ACM) + 15 more | Find emails |
| moeking.me | #16,476 | Cloudflare Web Analytics, Cloudflare edge/CDN, Font Awesome + 3 more | Find emails |
| danawa.com | #17,107 | Google Analytics, Google Tag Manager, Kakao + 5 more | Find emails |
| diyanet.gov.tr | #17,347 | ASP.NET, Azure DNS, Bootstrap + 13 more | Find emails |
| liberty.edu | #17,488 | Amazon Route 53, Backbone.js, Font Awesome + 7 more | Find emails |
| nissanusa.com | #17,750 | Akamai Bot Manager, Akamai edge/CDN, Akamai mPulse + 3 more | Find emails |
| linuxjournal.com | #17,952 | Bootstrap, Campaign Monitor, Disqus + 8 more | Find emails |
| oasis-open.org | #18,394 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 9 more | Find emails |
| webnames.ca | #19,234 | ASP.NET, AddToAny, AngularJS + 20 more | Find emails |
| arkusze.pl | #19,433 | Font Awesome, Google AdSense, Google Analytics + 6 more | Find emails |
| camera.it | #19,633 | Bootstrap, Drupal, Matomo + 5 more | Find emails |
| nlcbplaywhelotto.com | #19,658 | Apache, DoubleClick (Google Ads), Google AdSense + 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 →