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 |
|---|---|---|---|
| chaletenbois.fr | #769,243 | Fancybox, Google Fonts, Let's Encrypt + 9 more | Find emails |
| chambalatina.com | #769,254 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| charlieshop.hr | #769,340 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 9 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| cheapsmmmarket.com | #769,433 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 15 more | Find emails |
| chhaya.co.in | #769,553 | Apache, Bootstrap, Font Awesome + 15 more | Find emails |
| chiesadiverona.it | #769,612 | AddToAny, Bootstrap, Font Awesome + 7 more | Find emails |
| churchtv.ie | #769,834 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| cidunt.edu.pe | #769,882 | Apache, Bootstrap, Font Awesome + 10 more | Find emails |
| cimed.com.ar | #769,928 | ASP.NET, Apache, Azure DNS + 12 more | Find emails |
| cinegrand.bg | #769,970 | Apache, Bootstrap, Font Awesome + 11 more | Find emails |
| cinens.com | #770,022 | AOS, ASP.NET, Bootstrap + 13 more | Find emails |
| civislend.com | #770,289 | Apache, Bootstrap, Cookiebot + 5 more | Find emails |
| cnicursos.com.br | #770,907 | Font Awesome, Google Fonts, Google Tag Manager + 9 more | Find emails |
| coachestoolchest.com | #770,934 | Apache, Bootstrap, Google Fonts + 8 more | Find emails |
| colegiowr.com.br | #771,163 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 15 more | Find emails |
| colemanstore.com.br | #771,168 | Amazon CloudFront, Bootstrap, CSC (Digital Brand Services) + 14 more | Find emails |
| collectivecollection.co.il | #771,201 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 12 more | Find emails |
| color-arena.com | #771,234 | Apache, Avis Vérifiés, Font Awesome + 11 more | Find emails |
| colourstrendz.in | #771,250 | Adobe Fonts (Typekit), Cloudflare, Google AdSense + 8 more | Find emails |
| compliancephd.com | #771,414 | Amazon (ACM), Amazon Route 53, Apache + 5 more | Find emails |
| comunidadegerandovidas.com.br | #771,472 | Backbone.js, Cloudflare, DoubleClick (Google Ads) + 15 more | Find emails |
| confiance.com.br | #771,571 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 6 more | Find emails |
| coperibadesella.com | #771,899 | All in One SEO, Blogger, Font Awesome + 9 more | Find emails |
| cpsh.com.ar | #772,213 | AddToAny, Apache, Backbone.js + 6 more | Find emails |
| crcbrasil.com.br | #772,280 | Cloudflare, Font Awesome, Google Ads Conversion + 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 →