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 |
|---|---|---|---|
| replacementremotes.com | #863,433 | ASP.NET, Bootstrap, Font Awesome + 8 more | Find emails |
| sv-tomaz.si | #863,435 | Google Fonts, Let's Encrypt, Nginx + 4 more | Find emails |
| gama.aero | #863,465 | AngularJS, Apache, Bootstrap + 15 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| kittboats.com | #863,712 | DDoS-Guard, Divi, Fancybox + 12 more | Find emails |
| swiss.org.nz | #863,718 | Google Analytics, Google Fonts, Let's Encrypt + 3 more | Find emails |
| theplaidzebra.com | #863,855 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 10 more | Find emails |
| castercity.com | #863,993 | Bootstrap, Font Awesome, Google Analytics + 15 more | Find emails |
| lookoutmag.com | #863,994 | AddToAny, Bootstrap, Font Awesome + 12 more | Find emails |
| honcolferreterias.com | #864,010 | Apache, Font Awesome, Google Fonts + 4 more | Find emails |
| horseprerace.com | #864,132 | Elementor, Google Tag Manager, Meta Pixel + 7 more | Find emails |
| theceoviews.com | #864,185 | Elementor, Font Awesome, Google Analytics + 11 more | Find emails |
| gtv.com.tw | #864,207 | Apache, Brightcove, Fancybox + 7 more | Find emails |
| chicagolawbulletin.com | #864,308 | Amazon (ACM), Amazon Route 53, Backbone.js + 4 more | Find emails |
| chpws.com | #864,452 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 5 more | Find emails |
| froztix.com | #864,479 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| alupe.es | #864,611 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 10 more | Find emails |
| constructbybg.com.au | #864,903 | Font Awesome, Google Trust Services, Hostinger + 6 more | Find emails |
| rebdolls.com | #864,981 | Bootstrap, Elementor, Google Cloud DNS + 10 more | Find emails |
| kolbuszowa.pl | #865,146 | Fancybox, Font Awesome, Google Analytics + 5 more | Find emails |
| adultworld.co.za | #865,224 | Bootstrap, Font Awesome, Google Analytics + 11 more | Find emails |
| e-contract.be | #865,258 | AngularJS, Apache, Bootstrap + 2 more | Find emails |
| cibergenios.com | #865,452 | Adobe Fonts (Typekit), Apache, Font Awesome + 12 more | Find emails |
| wwoofinternational.org | #865,575 | Google Analytics, LiteSpeed, PHP + 5 more | Find emails |
| samsunghvac.com | #865,576 | Bootstrap, BrightEdge, Cloudinary + 17 more | Find emails |
| manchestercathedral.org | #865,846 | Bluesky, Bootstrap, Font Awesome + 11 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 →