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 |
|---|---|---|---|
| nullusanxietas.com | #430,428 | Apache, Bootstrap, Chart.js + 6 more | Find emails |
| coral-id.org | #430,467 | Apache, Bootstrap, Font Awesome + 10 more | Find emails |
| theacorn.com | #430,723 | AddToAny, All in One SEO, Apache + 18 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| wcmessenger.com | #430,737 | AddToAny, All in One SEO, Apache + 14 more | Find emails |
| recruit-card.jp | #430,769 | Adobe Experience Cloud (Launch), Apache, DigiCert + 4 more | Find emails |
| iloilo.gov.ph | #430,907 | Bootstrap, Drupal, Font Awesome + 7 more | Find emails |
| glitnirticketing.com | #431,002 | Apache, DigiCert, Fancybox + 12 more | Find emails |
| ansons.ph | #431,049 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 13 more | Find emails |
| casinovergelijker.net | #431,087 | Cloudflare, Cloudflare Turnstile, Cloudflare edge/CDN + 10 more | Find emails |
| focusing.org | #431,177 | AngularJS, Backbone.js, Bootstrap + 13 more | Find emails |
| emotive.io | #431,187 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 12 more | Find emails |
| pinoyalbums.com | #431,283 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| glacierparkcollection.com | #431,306 | ASP.NET, Adobe Fonts (Typekit), Azure API Management + 11 more | Find emails |
| mariakillam.com | #431,325 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 7 more | Find emails |
| grocerygazette.co.uk | #431,349 | Cloudflare, Font Awesome, Google Analytics + 12 more | Find emails |
| lvpei.org | #431,359 | Foundation, Google Fonts, Google Site Kit + 10 more | Find emails |
| nssa-nsca.org | #431,452 | AddToAny, Apache, Azure DNS + 13 more | Find emails |
| xxxcollections.net | #431,543 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 4 more | Find emails |
| knpgarden.com | #431,615 | Apache, Bootstrap, Google Analytics + 11 more | Find emails |
| lneg.pt | #431,628 | Apache, Azure DNS, Bootstrap + 16 more | Find emails |
| lms.ac.uk | #431,882 | Bluesky, Bootstrap, Drupal + 9 more | Find emails |
| basket.com.ua | #432,057 | Admixer, Cloudflare, Cloudflare Web Analytics + 14 more | Find emails |
| clarco.com | #432,182 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 8 more | Find emails |
| paginav.cl | #432,580 | AOS, All in One SEO, Apache + 9 more | Find emails |
| anca.org | #432,633 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 12 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 →