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 |
|---|---|---|---|
| castellinotizie.it | #404,261 | Bootstrap, Cloudflare, DoubleClick (Google Ads) + 20 more | Find emails |
| gamosaurus.com | #404,396 | Bluesky, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| tareffa.com.br | #404,615 | Apache, Backbone.js, Cloudflare + 7 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| sonniss.com | #404,697 | Cloudflare, Cloudflare edge/CDN, Drupal + 6 more | Find emails |
| ittour.com.ua | #404,740 | Cloudflare, Fancybox, Font Awesome + 10 more | Find emails |
| sbaprolife.org | #405,047 | Adobe Fonts (Typekit), Cloudflare Bot Management, Cloudflare edge/CDN + 20 more | Find emails |
| suraelectronics.com | #405,804 | Bootstrap, Font Awesome, Google Fonts + 7 more | Find emails |
| adopteunmec.com | #405,860 | DigiCert, Google Tag Manager, Google Workspace + 3 more | Find emails |
| evergreen-ils.org | #406,065 | Google Cloud DNS, Google Fonts, Ionic Framework + 5 more | Find emails |
| africaresearchconnects.com | #406,201 | Apache, Font Awesome, Google Analytics + 9 more | Find emails |
| highxtop.com | #406,678 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| artisans-collective.com | #406,842 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 6 more | Find emails |
| vesna-sad.ru | #407,170 | Font Awesome, Google Fonts, Let's Encrypt + 5 more | Find emails |
| idmil.org | #407,198 | Bootstrap, Font Awesome, Google Fonts + 6 more | Find emails |
| fotoferia.pl | #407,236 | Apache, Fancybox, Google AdSense + 7 more | Find emails |
| larevuedudigital.com | #407,306 | Apache, CleanTalk, Font Awesome + 8 more | Find emails |
| we0fun.com | #407,320 | Apache, Google Hosted Libraries, Let's Encrypt + 4 more | Find emails |
| ewink.shop | #407,464 | Font Awesome, Google Fonts, Let's Encrypt + 8 more | Find emails |
| chicfox.co.kr | #407,525 | Criteo, Daum, Google Fonts + 11 more | Find emails |
| irisopenspace.co.uk | #407,839 | ASP.NET, Azure API Management, Bootstrap + 5 more | Find emails |
| nutanix.dev | #407,844 | Adobe Experience Cloud (Launch), Brightcove, CSC (Digital Brand Services) + 7 more | Find emails |
| fundraising.co.uk | #407,874 | Backbone.js, Cloudflare, Cloudflare edge/CDN + 12 more | Find emails |
| faluninfo.net | #408,244 | AddToAny, Bootstrap, Cloudflare + 13 more | Find emails |
| laleche.org.uk | #408,509 | Cloudflare, DigitalOcean Spaces, Foundation + 9 more | Find emails |
| imascientist.org.uk | #408,536 | Font Awesome, Let's Encrypt, Matomo + 6 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 →