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 |
|---|---|---|---|
| unicat.uz | #838,372 | DigiCert, Moment.js, Nginx + 5 more | Find emails |
| united-untied.com | #838,534 | Amazon (ACM), Amazon Route 53, Google Hosted Libraries + 8 more | Find emails |
| unsurkasih.com | #838,673 | Branch, Google AMP, Google Analytics + 8 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| updf.go.ug | #838,761 | AMP for WP, Bootstrap, Font Awesome + 7 more | Find emails |
| urbexy.pl | #838,910 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 14 more | Find emails |
| vanhovebegrafenissen.be | #839,552 | Apache, Bootstrap, DigiCert + 11 more | Find emails |
| vaporizerjakarta.com | #839,595 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 8 more | Find emails |
| venkatramacalendar.com | #839,918 | Google AdSense, Google Analytics, Google Tag Manager + 5 more | Find emails |
| verwitwet.de | #840,047 | Apache, Backbone.js, Font Awesome + 6 more | Find emails |
| vespuccinederland.nl | #840,063 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 13 more | Find emails |
| viaggiserena.it | #840,188 | CookieYes, Font Awesome, Google Fonts + 4 more | Find emails |
| vim-jmk.cz | #840,526 | AOS, Apache, Bootstrap + 8 more | Find emails |
| vishwasmatrimony.org | #840,840 | AOS, Apache, Font Awesome + 5 more | Find emails |
| voparotomotiv.com | #841,284 | ASP.NET, Bootstrap, DigiCert + 6 more | Find emails |
| voudetau.com.br | #841,320 | Cloudflare, Font Awesome, Google Fonts + 10 more | Find emails |
| vrhovec.eu | #841,403 | Font Awesome, Google Analytics, Google Fonts + 9 more | Find emails |
| w-river.com | #841,595 | AddToAny, Blogger, Google Analytics + 10 more | Find emails |
| warpporn.com | #841,894 | All in One SEO, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| watchfilmy.to | #841,939 | Cloudflare, Cloudflare edge/CDN, Elementor + 7 more | Find emails |
| wati87759.com | #841,981 | Branch, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| webcorporacion.com.ar | #842,165 | Backbone.js, Font Awesome, Google Analytics + 11 more | Find emails |
| weltemmall.com | #842,397 | Apache, Google Ads Conversion, Google Analytics + 3 more | Find emails |
| weshoops.com | #842,427 | Let's Encrypt, Nginx, WhatsApp Business (click-to-chat) + 3 more | Find emails |
| worldcinezone.com.tr | #843,260 | AOS, ASP.NET, Bootstrap + 13 more | Find emails |
| wortel21.co.uk | #843,301 | Branch, Cloudflare edge/CDN, Google Analytics + 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 →