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 |
|---|---|---|---|
| regexone.com | #408,869 | Bootstrap, Google AdSense, Google Analytics + 9 more | Find emails |
| evdokimenko.ru | #409,029 | Font Awesome, Google Analytics, Let's Encrypt + 5 more | Find emails |
| activehealth.com | #409,450 | Akamai Bot Manager, Akamai Edge DNS, DigiCert + 7 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| charitiesforvets.org | #409,464 | Adobe Fonts (Typekit), Backbone.js, Cloudflare + 16 more | Find emails |
| cmkp.edu.pl | #409,515 | Apache, Bootstrap, Google Analytics + 8 more | Find emails |
| zeam.com | #410,198 | Amazon (ACM), Amazon Route 53, Auth0 + 16 more | Find emails |
| ismtj.co | #410,263 | Bootstrap, Font Awesome, Google Analytics + 10 more | Find emails |
| rooftopdefense.com | #410,376 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| loicavinilos.cl | #410,619 | Bootstrap, Font Awesome, Google Analytics + 9 more | Find emails |
| dailydoll.shop | #410,757 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 14 more | Find emails |
| sknclinics.co.uk | #411,192 | Cloudflare, Google Analytics, Google Fonts + 11 more | Find emails |
| constellationdealer.com | #411,886 | Google Analytics, Google Fonts, Google Tag Manager + 6 more | Find emails |
| automaxtools.me | #411,991 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 12 more | Find emails |
| eins.de | #411,998 | Apache, Bootstrap, Cloudflare edge/CDN + 14 more | Find emails |
| waltermartdelivery.com.ph | #412,262 | Bootstrap, DoubleClick (Google Ads), GSAP + 12 more | Find emails |
| adga.org | #412,442 | Backbone.js, Bootstrap, Font Awesome + 11 more | Find emails |
| impresoras3d.com | #412,456 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 7 more | Find emails |
| inyanjagroup.com | #412,464 | Bootstrap, Google Fonts, Hostinger + 7 more | Find emails |
| lawtimesnews.com | #412,470 | ASP.NET, Algolia, Azure API Management + 15 more | Find emails |
| neonsignsale.com | #412,742 | Cloudflare, Font Awesome, Nginx + 5 more | Find emails |
| ibagroup.eu | #412,752 | Apache, Backbone.js, Cloudflare Turnstile + 7 more | Find emails |
| mazin.uz | #412,919 | Apache, Fancybox, Google AdSense + 5 more | Find emails |
| cqcs.com.br | #413,252 | All in One SEO, Cloudflare, Cloudflare Bot Management + 10 more | Find emails |
| swikly.com | #413,329 | Amazon CloudFront, Amazon Route 53, Amazon S3 + 13 more | Find emails |
| nohup.it | #413,377 | Font Awesome, Google Analytics, Google Fonts + 10 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 →