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 |
|---|---|---|---|
| rohitrajcreations.in | #823,061 | DoubleClick (Google Ads), Font Awesome, Google Analytics + 12 more | Find emails |
| romagcooking.ro | #823,124 | Font Awesome, Google Fonts, Let's Encrypt + 6 more | Find emails |
| roompacker.co.kr | #823,193 | Daum, Google Tag Manager, Kakao + 9 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| rosco.bg | #823,237 | CookieYes, Font Awesome, Google Analytics + 11 more | Find emails |
| rotoplas.com.pe | #823,292 | Amazon CloudFront, Bootstrap, Font Awesome + 16 more | Find emails |
| rubikvanchuong.edu.vn | #823,728 | AOS, Fancybox, GSAP + 9 more | Find emails |
| rugby-scapulaire.com | #823,757 | Bootstrap, Casale Media, ConsentMo + 10 more | Find emails |
| rupanerkonyha.hu | #823,861 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 13 more | Find emails |
| safetyreport.go.kr | #824,263 | Apache, Backbone.js, Bootstrap + 6 more | Find emails |
| santhoshmaniacademy.in | #824,877 | Font Awesome, Google Fonts, Hostinger + 6 more | Find emails |
| sayaratlive.com | #825,261 | Google AdSense, Google Analytics, Google Tag Manager + 6 more | Find emails |
| sbba.or.jp | #825,286 | All in One SEO, Font Awesome, Google Analytics + 9 more | Find emails |
| scanduzioni.it | #825,370 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| sdedc.gov.eg | #825,625 | ASP.NET, AngularJS, Bootstrap + 7 more | Find emails |
| searchingforsingles.com | #825,707 | Backbone.js, Cloudflare, Cloudflare edge/CDN + 3 more | Find emails |
| sebatikok.com | #825,730 | Branch, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| secai-marche.com | #825,737 | Amazon (ACM), Amazon Route 53, Apache + 10 more | Find emails |
| secretdoha.com | #825,763 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| secretosdelagua.com | #825,771 | Cookiebot, Google Tag Manager, Let's Encrypt + 7 more | Find emails |
| segredoseguro.com | #825,878 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| sekura.mx | #825,956 | Amazon (ACM), Azure DNS, Google Analytics + 10 more | Find emails |
| sellart.com.br | #825,999 | Backbone.js, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| sertsoacha.com | #826,269 | All in One SEO, Backbone.js, Google Analytics + 9 more | Find emails |
| serwisant.online | #826,352 | Bootstrap, Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| sexidetfri.dk | #826,511 | Backbone.js, Font Awesome, Google Fonts + 9 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 →