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 |
|---|---|---|---|
| balloonexhibit.com | #547,646 | Bootstrap, Font Awesome, Google Analytics + 10 more | Find emails |
| echigo-park.jp | #547,702 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| addinol.de | #547,863 | Cloudflare, Cloudflare edge/CDN, ConsentMo + 11 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| radioniepokalanow.pl | #548,099 | Apache, Fancybox, Font Awesome + 5 more | Find emails |
| iimono.town | #548,168 | All in One SEO, Bootstrap, Font Awesome + 8 more | Find emails |
| entityclouds.com | #548,818 | Cloudflare, Cloudflare Turnstile, Cloudflare Web Analytics + 12 more | Find emails |
| vipremix.ir | #548,867 | Bootstrap, Font Awesome, Google Fonts + 10 more | Find emails |
| jackpotmasters.id | #549,176 | Branch, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| normanfosterfoundation.org | #549,797 | Backbone.js, Cloudflare, Cloudflare Web Analytics + 17 more | Find emails |
| mobilize-fs.com.br | #549,996 | Amazon Route 53, Apache, Backbone.js + 11 more | Find emails |
| nrvnews.com | #550,028 | AddToAny, Apache, Google Analytics + 8 more | Find emails |
| icats.edu.my | #550,285 | Apache, Backbone.js, Font Awesome + 6 more | Find emails |
| bcrlangkawi-empire.com | #550,296 | Google Fonts, Google Hosted Libraries, Google Tag Manager + 9 more | Find emails |
| ntca.org | #550,526 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 13 more | Find emails |
| brunner.de | #550,544 | DoubleClick (Google Ads), Font Awesome, Google Maps + 9 more | Find emails |
| bluemarlinibiza.com | #550,670 | Amazon Route 53, Google Analytics, Google Fonts + 12 more | Find emails |
| vigeowebsite.com | #550,745 | ASP.NET, Bootstrap, Elfsight + 10 more | Find emails |
| theduchy.com | #550,819 | AOS, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| bdskart.in | #550,841 | Hostinger, Let's Encrypt, LiteSpeed + 5 more | Find emails |
| wonecks.net | #551,086 | AOS, Cloudflare, Cloudflare Web Analytics + 5 more | Find emails |
| torontohomecomfort.com | #551,209 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| beitarfc.co.il | #551,357 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 13 more | Find emails |
| foreignaffairs.co.nz | #551,383 | Let's Encrypt, Nginx, PHP + 2 more | Find emails |
| playwitty.com | #551,465 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| thegauntlet.ca | #551,476 | Apache, Bootstrap, Bunny Fonts + 8 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 →