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 |
|---|---|---|---|
| arkansasrazorbacks.com | #114,832 | DoubleClick (Google Ads), Google Analytics, Google Hosted Libraries + 10 more | Find emails |
| orionmagazine.org | #114,952 | Bluesky, Cloudflare, Cloudflare edge/CDN + 12 more | Find emails |
| tagmarshal.com | #115,081 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Tag Manager + 11 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| poemas-del-alma.com | #115,092 | Amazon Advertising, Cloudflare, Cloudflare Turnstile + 10 more | Find emails |
| tomi.ai | #115,096 | Google Cloud, Google Cloud DNS, Google Fonts + 11 more | Find emails |
| reg365.net | #115,548 | Apache, Google Tag Manager, Sectigo + 3 more | Find emails |
| originlab.com | #115,660 | ASP.NET, Bootstrap, DigiCert + 15 more | Find emails |
| fullfocus.co | #115,910 | Bootstrap, Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| azcapitoltimes.com | #115,916 | All in One SEO, Bootstrap, Broadstreet + 17 more | Find emails |
| hsu-hh.de | #115,941 | Bootstrap, Cloudflare edge/CDN, Let's Encrypt + 6 more | Find emails |
| anjukestatic.com | #116,011 | Tengine, jQuery | Find emails |
| nbadraft.net | #116,298 | Blockthrough, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| chiesadimilano.it | #116,829 | AddToAny, Bootstrap, Fancybox + 8 more | Find emails |
| myconfinedspace.com | #116,867 | Apache, Font Awesome, Google AdSense + 9 more | Find emails |
| gruenderszene.de | #116,896 | Adobe Experience Cloud (Launch), Cloudflare edge/CDN, Google Tag Manager + 9 more | Find emails |
| youcheapjerseys.com | #117,554 | Cloudflare, Cloudflare edge/CDN, Fancybox + 11 more | Find emails |
| thenewpress.com | #117,876 | Bluesky, Cloudflare edge/CDN, Google Fonts + 9 more | Find emails |
| pmdsoft.com | #117,946 | Amazon (ACM), Amazon Route 53, Apache + 5 more | Find emails |
| ilriformista.it | #118,126 | Cloudflare, Cloudflare edge/CDN, DigiCert + 14 more | Find emails |
| marshallyin.com | #118,136 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| dinnerbooking.com | #119,056 | Bootstrap, Cloudflare Turnstile, Cookiebot + 12 more | Find emails |
| ctb.ne.jp | #119,121 | Google Hosted Libraries, Google Maps, Let's Encrypt + 9 more | Find emails |
| nkba.org | #119,200 | Amazon (ACM), Amazon Route 53, Apache + 26 more | Find emails |
| tripline.net | #119,275 | Amazon (ACM), Apache, Backbone.js + 18 more | Find emails |
| onecomm.bm | #119,577 | Fastly, Google Analytics, Google Site Kit + 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 →