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 |
|---|---|---|---|
| isealalliance.org | #609,926 | AddToAny, Amazon Route 53, BugHerd + 12 more | Find emails |
| bandelin.com | #610,283 | Font Awesome, Google AdSense, Google Hosted Libraries + 11 more | Find emails |
| laketown-outlet.jp | #610,433 | Google Cloud DNS, Google Tag Manager, Meta Pixel + 5 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| omu-togel.com | #610,601 | Branch, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| hfr.com | #610,607 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 10 more | Find emails |
| certedrive.com | #610,640 | Amazon Route 53, Bootstrap, Font Awesome + 13 more | Find emails |
| gymfed.be | #610,791 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 14 more | Find emails |
| amnakoo.com | #611,105 | Bootstrap, Cloudflare, Font Awesome + 9 more | Find emails |
| ketchum.edu | #611,193 | Adobe Fonts (Typekit), Bootstrap, Drupal + 13 more | Find emails |
| thebatraanumerology.com | #611,459 | AOS, Bootstrap, Cloudflare + 15 more | Find emails |
| dutchwaregear.com | #611,598 | CleanTalk, Cloudflare edge/CDN, Google Fonts + 9 more | Find emails |
| pueblo.org | #611,712 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| btslighting.com | #611,751 | Font Awesome, Google Ads Conversion, Google Analytics + 12 more | Find emails |
| worldcoalition.org | #611,754 | Campaign Monitor, CookieYes, Google Analytics + 10 more | Find emails |
| compuzz.com | #611,799 | Apache, Bootstrap, Divi + 11 more | Find emails |
| dottech.org | #612,009 | All in One SEO, Apache, Cloudflare + 7 more | Find emails |
| aeroclub-lessay.fr | #612,084 | Apache, Google Analytics, Google Tag Manager + 6 more | Find emails |
| ecameleca.com.br | #612,323 | Amazon CloudFront, Bootstrap, Font Awesome + 9 more | Find emails |
| specotech.com | #612,341 | Adobe Fonts (Typekit), All in One SEO, Font Awesome + 10 more | Find emails |
| vistapointe.net | #612,387 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| patchadams.org | #612,448 | Bunny Fonts, Fancybox, Google Analytics + 11 more | Find emails |
| animalhouseshelter.com | #612,604 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 12 more | Find emails |
| akaaydiamond.com | #612,614 | Google Fonts, Hostinger, Let's Encrypt + 6 more | Find emails |
| hwahomewarranty.com | #612,680 | Bootstrap, Cloudflare, Cloudflare Bot Management + 14 more | Find emails |
| madisonseating.com | #612,688 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 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 →