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 |
|---|---|---|---|
| bresciaingol.com | #766,342 | Apache, Google Analytics, Google Tag Manager + 6 more | Find emails |
| brugtetrusser.dk | #766,520 | Cloudflare, Google Fonts, Google Tag Manager + 7 more | Find emails |
| bugsincyberspace.com | #766,721 | Cloudflare Bot Management, Cloudflare edge/CDN, Font Awesome + 7 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| bumi303-seo.com | #766,807 | Branch, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| bus4ddrive.club | #766,890 | Branch, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| butikolv.pl | #766,979 | Bootstrap, Font Awesome, Google Ads Conversion + 10 more | Find emails |
| buzzbee.co.kr | #767,020 | Adobe Fonts (Typekit), Apache, Sectigo + 4 more | Find emails |
| byacb4you.com | #767,099 | Cloudflare, Cloudflare edge/CDN, Flying Press + 6 more | Find emails |
| caaitba.org.ar | #767,325 | Apache, Bootstrap, Font Awesome + 8 more | Find emails |
| cabfoods.co.za | #767,341 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 5 more | Find emails |
| cakirogluotomotiv.com | #767,452 | Font Awesome, Google Analytics, Google Fonts + 7 more | Find emails |
| calciobresciano.it | #767,466 | Apache, Bootstrap, Font Awesome + 16 more | Find emails |
| calcoweb.net | #767,474 | Apache, Font Awesome, Google Cloud DNS + 6 more | Find emails |
| camtransfer.net | #767,706 | Apache, Backbone.js, Font Awesome + 5 more | Find emails |
| capostore.co.kr | #767,859 | Apache, Criteo, Google Ads Conversion + 7 more | Find emails |
| careeradvancementnow.com | #767,993 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| casalistatienda.com | #768,266 | Font Awesome, Google Analytics, Google Site Kit + 14 more | Find emails |
| cassaedilemilano.it | #768,415 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 7 more | Find emails |
| cavatini.com.ar | #768,540 | Bootstrap, Google Tag Manager, Let's Encrypt + 7 more | Find emails |
| cazaputas.com | #768,557 | Font Awesome, Google Analytics, Google Tag Manager + 8 more | Find emails |
| centermed.pl | #768,918 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 17 more | Find emails |
| centralnutrition.com.br | #768,952 | Amazon CloudFront, Amazon Route 53, Bootstrap + 15 more | Find emails |
| centromedico.com.uy | #768,975 | Apache, Backbone.js, Font Awesome + 6 more | Find emails |
| cfmotobenelux.com | #769,157 | Google Analytics, Google Fonts, Google Maps + 8 more | Find emails |
| chaejonghyeop-official.jp | #769,226 | All in One SEO, Cloudflare, Cloudflare Web Analytics + 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 →