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 |
|---|---|---|---|
| foodbloggersofcanada.com | #983,532 | Adobe Fonts (Typekit), All in One SEO, Cloudflare + 12 more | Find emails |
| ridersarmor.com | #983,571 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 17 more | Find emails |
| marquardmedia.hu | #983,583 | Breeze, Cloudflare, Let's Encrypt + 6 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| lotusforsale.com | #983,861 | Cloudflare, Cloudflare Turnstile, Cloudflare edge/CDN + 15 more | Find emails |
| swn.net | #983,923 | Apache, Bootstrap, CCM19 + 13 more | Find emails |
| weatherboy.com | #983,977 | Bootstrap, Google AdSense, Google Fonts + 19 more | Find emails |
| academeblog.org | #984,082 | AddToAny, Bluesky, Endurance International Group + 5 more | Find emails |
| radio-salsa.com | #984,413 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| minimum-wage.org | #984,604 | Backbone.js, Bootstrap, Cloudflare + 18 more | Find emails |
| mercermuseum.org | #984,630 | Adobe Fonts (Typekit), Elementor, Google Analytics + 11 more | Find emails |
| learnphotographycanada.com | #984,644 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 7 more | Find emails |
| usw.ca | #984,963 | Action Network, Bootstrap, Fastly + 8 more | Find emails |
| gadgetdiva.id | #984,969 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 11 more | Find emails |
| giatheficoco.com | #984,996 | Cloudflare, Cloudflare edge/CDN, Google AdSense + 9 more | Find emails |
| kulturkosmos.de | #985,205 | Let's Encrypt, Nginx, jQuery | Find emails |
| vishwanathayurved.com | #985,385 | Bootstrap, Cashfree, Google Analytics + 8 more | Find emails |
| advertite.de | #985,471 | Backbone.js, Divi, Google Tag Manager + 6 more | Find emails |
| eltianguisvirtual.net | #985,580 | AddToAny, Cloudflare, Cloudflare Web Analytics + 13 more | Find emails |
| kitashibu.com | #986,018 | Apache, Bootstrap, Font Awesome + 5 more | Find emails |
| accreditation.ca | #986,029 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 17 more | Find emails |
| noithatnamcuong.vn | #986,074 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 6 more | Find emails |
| paulcomp.com | #986,230 | Google Analytics, Google Tag Manager, Let's Encrypt + 8 more | Find emails |
| homyhome.cz | #986,417 | Apache, Bootstrap, Font Awesome + 10 more | Find emails |
| serrescircuit.gr | #986,558 | Bootstrap, Font Awesome, Google Analytics + 10 more | Find emails |
| rltbase.ru | #986,688 | Google Hosted Libraries, Let's Encrypt, OpenResty | 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 →