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 |
|---|---|---|---|
| ieeeusa.org | #426,305 | Adobe Fonts (Typekit), Cloudflare, Font Awesome + 14 more | Find emails |
| acsa-arch.org | #426,366 | Amazon Route 53, Bulma, Font Awesome + 11 more | Find emails |
| thotismedia.com | #426,634 | All in One SEO, Backbone.js, Brevo + 15 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| unitytactical.com | #426,700 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 16 more | Find emails |
| avechi.co.ke | #427,324 | Font Awesome, Google Analytics, Google Fonts + 8 more | Find emails |
| judo.or.jp | #427,518 | All in One SEO, Google Fonts, Google Tag Manager + 7 more | Find emails |
| cookcountyassessoril.gov | #427,890 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 12 more | Find emails |
| doshiautoparts.com | #427,949 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 12 more | Find emails |
| tow-net.de | #427,993 | Apache, Font Awesome, Leaflet + 4 more | Find emails |
| dbia.org | #428,323 | AdZerk (Kevel), Adobe Experience Cloud (Launch), Amazon (ACM) + 14 more | Find emails |
| hot-dog.org | #428,512 | Bootstrap, Drupal, Fancybox + 8 more | Find emails |
| gri.net | #428,596 | Apache, Bootstrap, Cloudflare + 20 more | Find emails |
| csshero.org | #428,930 | Apache, Google Tag Manager, Let's Encrypt + 6 more | Find emails |
| sapinsider.org | #429,133 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 18 more | Find emails |
| atayatirim.com.tr | #429,174 | AOS, ASP.NET, Bootstrap + 11 more | Find emails |
| boudinbakery.com | #429,386 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Tag Manager + 9 more | Find emails |
| superway483.com | #429,414 | Apache, Bootstrap, Font Awesome + 10 more | Find emails |
| axieros.com | #429,492 | Let's Encrypt, Nginx, WordPress + 1 more | Find emails |
| epsilonsystems.com | #429,894 | Apache, Bootstrap, Matomo + 4 more | Find emails |
| thenorthface.jp | #429,951 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 9 more | Find emails |
| daymalsaifperfumes.com | #430,031 | Cloudflare Bot Management, Cloudflare edge/CDN, Font Awesome + 6 more | Find emails |
| nativecrafts.us | #430,092 | Apache, Font Awesome, Gravatar + 5 more | Find emails |
| opentendance.fr | #430,106 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| cheapthings.store | #430,289 | Cloudflare, Cloudflare edge/CDN, Google Ads Conversion + 11 more | Find emails |
| fiftygrande.com | #430,405 | Backbone.js, Cloudflare, Cloudflare Web Analytics + 16 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 →