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 |
|---|---|---|---|
| ccpdt.org | #569,664 | Adobe Fonts (Typekit), Apache, Foundation + 9 more | Find emails |
| wealthtender.com | #569,920 | Backbone.js, Cloudflare, Cloudflare Bot Management + 11 more | Find emails |
| northamericanarms.com | #569,952 | CleanTalk, Google Ads Conversion, Google Analytics + 9 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| wineanddesign.com | #569,964 | All in One SEO, Cloudflare, Cloudflare edge/CDN + 15 more | Find emails |
| asc.gov | #570,135 | DigiCert, Drupal, Google Analytics + 5 more | Find emails |
| dzhastinbiber.ru | #570,151 | Google Fonts, Let's Encrypt, Nginx + 5 more | Find emails |
| e-nabavki.gov.mk | #570,248 | ASP.NET, AngularJS, Bootstrap + 6 more | Find emails |
| tanitweb.com | #570,829 | Bootstrap, Calendly, Cloudflare + 18 more | Find emails |
| trovagas.com | #570,851 | All in One SEO, Cloudflare, Cloudflare Web Analytics + 18 more | Find emails |
| fashionlady.vn | #570,906 | Google Analytics, Google Fonts, Google Tag Manager + 11 more | Find emails |
| register365.com | #571,163 | Amazon CloudFront, Apache, Atlassian Cloud + 10 more | Find emails |
| panbo.com | #571,422 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 15 more | Find emails |
| streets.mn | #571,806 | Action Network, Bluesky, Bootstrap + 16 more | Find emails |
| wodwell.com | #571,874 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 15 more | Find emails |
| sapphirefoxx.com | #571,881 | Backbone.js, CleanTalk, Cloudflare + 7 more | Find emails |
| majoran.ru | #572,017 | AOS, Bootstrap, Chart.js + 9 more | Find emails |
| adprint.jp | #572,096 | ASP.NET, Criteo, Font Awesome + 4 more | Find emails |
| ejuicestore.com | #572,445 | Font Awesome, Google Analytics, Google Fonts + 8 more | Find emails |
| fotothing.com | #572,468 | Branch, Cloudflare, Google Analytics + 8 more | Find emails |
| optimization-online.org | #572,485 | Font Awesome, Google Analytics, Google Tag Manager + 5 more | Find emails |
| kemri-wellcome.org | #572,971 | Google Fonts, Microsoft 365, Slick Carousel + 6 more | Find emails |
| americanwatercollege.org | #573,006 | Amazon Route 53, Bootstrap, CrazyEgg + 15 more | Find emails |
| ptla.org | #573,172 | BambooHR, Bootstrap, Cloudflare + 9 more | Find emails |
| cigarsmokerclub.com | #573,256 | Cloudflare, Cloudflare edge/CDN, DigitalOcean Spaces + 10 more | Find emails |
| pacificgrass.co | #573,416 | Ahrefs Analytics, Bunny CDN, BunnyCDN + 9 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 →