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 |
|---|---|---|---|
| rusex.love | #908,603 | Cloudflare, Google Fonts, Let's Encrypt + 7 more | Find emails |
| focus-magazin.de | #908,655 | Bootstrap, ConsentMo, Font Awesome + 9 more | Find emails |
| inspire-trends.com | #908,721 | Bootstrap, Font Awesome, Google Fonts + 8 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| irecord.org.uk | #908,955 | AddToAny, Bootstrap, Cloudflare + 15 more | Find emails |
| fidaf.it | #908,986 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| modafinilxl.com | #909,366 | Bootstrap, Cloudflare Turnstile, DDoS-Guard + 10 more | Find emails |
| marcelwanders.com | #909,380 | Cloudflare, Craft CMS, Google Analytics + 7 more | Find emails |
| tugo.com | #909,542 | Amazon CloudFront, Amazon Route 53, Amazon S3 + 15 more | Find emails |
| sliceofscifi.com | #909,604 | Ahrefs Analytics, Bluesky, Font Awesome + 9 more | Find emails |
| ojim.fr | #909,712 | Apache, Google Site Kit, Google Tag Manager + 5 more | Find emails |
| ththeme.net | #909,858 | Bootstrap, Fancybox, Google Analytics + 13 more | Find emails |
| nwicc.edu | #909,910 | Bootstrap, Chaport, Font Awesome + 10 more | Find emails |
| euroqol.org | #910,053 | Bluesky, Bootstrap, Cloudflare edge/CDN + 14 more | Find emails |
| rmcoin.com | #910,177 | CrazyEgg, Font Awesome, Google Analytics + 10 more | Find emails |
| butterflyindia.com | #910,331 | Bootstrap, DoubleClick (Google Ads), Fancybox + 14 more | Find emails |
| sdw.org | #910,436 | Apache, Backbone.js, Bootstrap + 4 more | Find emails |
| securitashealthcare.com | #910,483 | Bootstrap, CSC (Digital Brand Services), Cloudflare Web Analytics + 11 more | Find emails |
| coastaldigest.com | #910,549 | All in One SEO, Gravatar, Hostinger + 6 more | Find emails |
| readingraphics.com | #910,891 | BigScoots, Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| mattressinsider.com | #910,915 | Cloudflare, Cloudflare edge/CDN, Convert + 13 more | Find emails |
| district113.online | #910,961 | Bootstrap, Font Awesome, Google Fonts + 6 more | Find emails |
| powerhousegym.com | #910,992 | Adobe Fonts (Typekit), Apache, Font Awesome + 7 more | Find emails |
| voltecbd.com | #911,133 | Bootstrap, Google Analytics, Google Fonts + 10 more | Find emails |
| tomamin.co.jp | #911,185 | Apache, Backbone.js, Bootstrap + 15 more | Find emails |
| radioluna.it | #911,380 | Apache, DigiCert, Font Awesome + 7 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 →