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 |
|---|---|---|---|
| asaplegaldocuments.com | #441,305 | Apache, Backbone.js, Bootstrap + 11 more | Find emails |
| thedistillerydistrict.com | #441,366 | Apache, Azure DNS, Bootstrap + 13 more | Find emails |
| ows-ammo.com | #441,548 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 9 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| archlinuxcn.org | #441,584 | Google Analytics, Nginx, PHP + 4 more | Find emails |
| journey.tw | #441,736 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 13 more | Find emails |
| modernaminos.com | #441,916 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 9 more | Find emails |
| peaksportscorvallis.com | #441,922 | Font Awesome, Google Analytics, Google Site Kit + 9 more | Find emails |
| morningscore.io | #442,101 | ClickCease, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| usacrime.com | #442,214 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 7 more | Find emails |
| bizzflo.com | #442,238 | Amazon (ACM), Bootstrap, CKEditor + 22 more | Find emails |
| peginc.com | #442,368 | Breeze, Cloudflare, Cloudflare edge/CDN + 5 more | Find emails |
| ipsa.org | #442,459 | AddToAny, Amazon Route 53, Bluesky + 10 more | Find emails |
| loos.fr | #442,547 | AddToAny, AngularJS, Apache + 9 more | Find emails |
| caitlin.top | #442,568 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| icegram.com | #442,932 | Cloudflare, Google Ads Conversion, Google Analytics + 13 more | Find emails |
| cequip.com.br | #443,080 | Bootstrap, Google Analytics, Google Tag Manager + 3 more | Find emails |
| nstperfume.com | #443,102 | Amazon Route 53, Blogger, Bluesky + 10 more | Find emails |
| ifuturetech.org | #444,378 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 5 more | Find emails |
| mccibd.org | #444,655 | Bootstrap, Chart.js, Cloudflare + 15 more | Find emails |
| leehamnews.com | #444,854 | CleanTalk, Cloudflare, Cloudflare Bot Management + 14 more | Find emails |
| someka.net | #444,937 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| discountvapepen.com | #445,115 | Cloudflare, Cloudflare edge/CDN, Doofinder + 16 more | Find emails |
| cafedelabourse.com | #445,217 | Backbone.js, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| ultimatetraditionaldesigns.com | #445,288 | Font Awesome, LiteSpeed, Sectigo + 4 more | Find emails |
| tenniscall.com | #445,322 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 14 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 →