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 |
|---|---|---|---|
| beworksmartnow.com | #885,259 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| blinkartz.com | #885,456 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 9 more | Find emails |
| bockelandtuitvaart.be | #885,510 | Adobe Fonts (Typekit), Apache, Backbone.js + 10 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| booksflea.com | #885,574 | Bootstrap, Cloudflare, Font Awesome + 7 more | Find emails |
| cada.toys | #885,906 | ConsentMo, Font Awesome, Let's Encrypt + 7 more | Find emails |
| calzadobarefoot.com | #885,947 | Ahrefs Analytics, Brevo, Google Maps + 10 more | Find emails |
| cantabpublisher.com | #885,992 | Backbone.js, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| casasbaratas.com.es | #886,065 | Apache, Font Awesome, Google Fonts + 9 more | Find emails |
| chancellorpb.com | #886,252 | Font Awesome, Google Analytics, Google Fonts + 9 more | Find emails |
| cinetime.com.tr | #886,395 | AOS, ASP.NET, Google Ads Conversion + 14 more | Find emails |
| cqs.com.gr | #886,799 | Backbone.js, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| ctgcollege.gov.bd | #886,899 | Cloudflare, Cloudflare edge/CDN, Fancybox + 7 more | Find emails |
| cuponatic.com.mx | #886,935 | Amazon (ACM), Amazon Route 53, Font Awesome + 16 more | Find emails |
| cybervu.net | #886,970 | Apache, Font Awesome, Google AdSense + 7 more | Find emails |
| dermatiquelabs.com | #887,229 | All in One SEO, Google Analytics, Google Fonts + 12 more | Find emails |
| desixxxzone.com | #887,253 | Backbone.js, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| dirmov.mil.ec | #887,402 | Apache, Backbone.js, Font Awesome + 9 more | Find emails |
| doosanbearswefan.shop | #887,557 | Apache, Sectigo, jQuery | Find emails |
| easysmmmarket.com | #887,801 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 15 more | Find emails |
| elamira.gr | #887,966 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 11 more | Find emails |
| electrobike.ma | #887,977 | Font Awesome, Google Fonts, Namecheap + 8 more | Find emails |
| eltrentranscantabrico.com | #888,028 | Apache, Backbone.js, Divi + 7 more | Find emails |
| equipezorgbedrijven.nl | #888,141 | Cookiebot, Google Analytics, Google Tag Manager + 7 more | Find emails |
| eroteve.com | #888,164 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 11 more | Find emails |
| escuelavipschool.com | #888,182 | Apache, Fancybox, Font Awesome + 8 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 →