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 |
|---|---|---|---|
| dusquad.com | #669,724 | Font Awesome, Google Analytics, Google Fonts + 10 more | Find emails |
| werf-en.nl | #669,774 | Backbone.js, Google Fonts, Let's Encrypt + 6 more | Find emails |
| siba.co.uk | #670,077 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| vrptv.com | #670,162 | Branch, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| perimeter-solutions.com | #670,252 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 11 more | Find emails |
| arti.edu.az | #670,333 | AOS, Apache, Bootstrap + 12 more | Find emails |
| uniwatchblog.com | #670,453 | Cloudflare, Cloudflare edge/CDN, Cloudinary + 9 more | Find emails |
| emergingcivilwar.com | #670,557 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 15 more | Find emails |
| learnenough.com | #670,799 | Adobe Fonts (Typekit), Braintree, Cloudflare + 15 more | Find emails |
| mors.si | #671,038 | Fancybox, Matomo, jQuery | Find emails |
| fcpredicts.com | #671,183 | All in One SEO, Bootstrap, Font Awesome + 9 more | Find emails |
| akritijewels.com | #671,432 | Font Awesome, Google Analytics, Google Tag Manager + 7 more | Find emails |
| jub.si | #671,597 | Backbone.js, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| majesticvapes.ca | #671,642 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 7 more | Find emails |
| newswavejharkhand.com | #671,683 | Cloudflare, Google Analytics, Google Fonts + 8 more | Find emails |
| superpreparadocursos.com.br | #671,783 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 more | Find emails |
| thermosilesia.pl | #671,798 | Cloudflare, Cloudflare edge/CDN, Cookiebot + 15 more | Find emails |
| yourrecipeblog.com | #671,860 | Google Fonts, Google Maps, Let's Encrypt + 10 more | Find emails |
| inrybar.cz | #671,919 | All in One SEO, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| libreriairbe.com | #671,932 | Bootstrap, Cloudflare Bot Management, Cloudflare Turnstile + 12 more | Find emails |
| magistv24.com | #671,939 | Backbone.js, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| thelastgame.org | #671,997 | DDoS-Guard, Font Awesome, Let's Encrypt + 5 more | Find emails |
| cheapcanna.org | #672,098 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 11 more | Find emails |
| ortorex.hu | #672,297 | All in One SEO, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| sanmartinwatches.com | #672,337 | Google Ads Conversion, Google Analytics, Google Fonts + 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 →