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 |
|---|---|---|---|
| freehtml5.co | #149,222 | 2Checkout, BuySellAds, Cloudflare + 13 more | Find emails |
| nissan.ca | #149,400 | Akamai edge/CDN, Akamai mPulse, Let's Encrypt + 2 more | Find emails |
| concertopro.ch | #149,449 | Google Analytics, Google Publisher Tag, Google Tag Manager + 8 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| area52.com | #150,093 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 7 more | Find emails |
| indacloud.co | #150,193 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 15 more | Find emails |
| h-ciyuan.com | #150,427 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 5 more | Find emails |
| christianchronicle.org | #150,811 | Cloudflare, Cloudflare edge/CDN, Foundation + 12 more | Find emails |
| mano.pro | #151,264 | Apache, Bootstrap, Drupal + 8 more | Find emails |
| certillion.com | #151,517 | Amazon Route 53, CookieYes, Font Awesome + 17 more | Find emails |
| legalserviceindia.com | #151,655 | AddToAny, Blogger, Bootstrap + 19 more | Find emails |
| docvino.com | #151,812 | Font Awesome, Google Fonts, Gravatar + 5 more | Find emails |
| acmespb.ru | #151,844 | Bootstrap, Fancybox, Google Fonts + 7 more | Find emails |
| starwarsnewsnet.com | #151,926 | AddToAny, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| rosalinux.ru | #152,188 | Apache, Bootstrap, Font Awesome + 8 more | Find emails |
| guilinlife.com | #152,562 | Alibaba Cloud CDN, Baidu Analytics, Nginx + 3 more | Find emails |
| aboutcasemanagerjobs.com | #153,237 | Apache, Font Awesome, Google Fonts + 10 more | Find emails |
| samsbeauty.com | #153,265 | Amazon Route 53, Apache, Swiper + 2 more | Find emails |
| americanaffairsjournal.org | #153,306 | AddThis, Google Analytics, Google Fonts + 8 more | Find emails |
| gofugyourself.com | #153,614 | All in One SEO, Amazon Route 53, Cloudflare edge/CDN + 11 more | Find emails |
| bibliotheca-open.de | #153,678 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 11 more | Find emails |
| prime-tele.com | #153,886 | Apache, Let's Encrypt, WordPress + 1 more | Find emails |
| covrprice.com | #154,355 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 8 more | Find emails |
| ndirect.co.uk | #154,538 | Apache, Google Tag Manager, Sectigo + 1 more | Find emails |
| sugarwod.com | #154,848 | Amazon Route 53, Bootstrap, Chart.js + 24 more | Find emails |
| purothemes.com | #154,892 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Web Analytics + 5 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 →