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 |
|---|---|---|---|
| barana-style.ir | #762,826 | Bootstrap, Let's Encrypt, LiteSpeed + 4 more | Find emails |
| beaux-mecs.fr | #763,470 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 more | Find emails |
| beny.co.jp | #763,773 | DigiCert, Elementor, Google Analytics + 6 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| bestattung-kunz.at | #763,934 | Apache, Backbone.js, Font Awesome + 5 more | Find emails |
| bestattung-nk.at | #763,945 | Backbone.js, Font Awesome, Let's Encrypt + 5 more | Find emails |
| bestattung-ostermann.at | #763,947 | Apache, Backbone.js, Font Awesome + 5 more | Find emails |
| betblue.net | #764,176 | ASP.NET, Cloudflare, Cloudflare Web Analytics + 3 more | Find emails |
| bibliometro.cl | #764,589 | Apache, Backbone.js, Gravatar + 4 more | Find emails |
| bikecloset.com | #764,787 | Font Awesome, Google Trust Services, Gravatar + 5 more | Find emails |
| bimaco.net | #764,856 | All in One SEO, Cloudflare, Cloudflare Turnstile + 6 more | Find emails |
| bimbra.in | #764,860 | Font Awesome, Google Fonts, Google Tag Manager + 5 more | Find emails |
| blackhooksnc.com | #765,244 | Elementor, Font Awesome, Google Tag Manager + 11 more | Find emails |
| blncorp.global | #765,343 | Amazon Route 53, Bootstrap, Cloudflare edge/CDN + 6 more | Find emails |
| bloodsafelearning.org.au | #765,374 | Amazon (ACM), Amazon Route 53, Apache + 16 more | Find emails |
| bloomshell.co | #765,382 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| bluelockofficial.com | #765,436 | Branch, Cloudflare edge/CDN, Google Analytics + 8 more | Find emails |
| bluesmmpanel.com | #765,451 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 19 more | Find emails |
| bne.gob.cl | #765,532 | Bootstrap, DigiCert, Font Awesome + 5 more | Find emails |
| bonichi.com | #765,807 | Apache, Bootstrap, DoubleClick (Google Ads) + 13 more | Find emails |
| bookstohome.in | #765,890 | Cloudflare, Font Awesome, Google Ads Conversion + 12 more | Find emails |
| boonga.pl | #765,907 | Apache, Backbone.js, Bootstrap + 8 more | Find emails |
| botaksign.com | #766,036 | AngularJS, Apache, Font Awesome + 10 more | Find emails |
| boueikyosai.or.jp | #766,061 | Apache, Bootstrap, Google Analytics + 7 more | Find emails |
| bpdbivvr.gov.bd | #766,131 | ASP.NET, Bootstrap, Cloudflare + 6 more | Find emails |
| bpophotoflow.com | #766,153 | Apache, Backbone.js, Divi + 14 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 →