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 |
|---|---|---|---|
| nanidesign.com | #865,923 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 6 more | Find emails |
| studip.de | #866,070 | Apache, Backbone.js, Let's Encrypt + 3 more | Find emails |
| revesty.com | #866,260 | Apache, Google Analytics, Google Fonts + 14 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| japersrink.com |
| #866,395 |
| Amazon Route 53, Beehiiv, Blogger + 17 more |
| Find emails |
| wp-eventmanager.com | #866,511 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 16 more | Find emails |
| mailsus.com | #866,654 | Apache, Bootstrap, Font Awesome + 5 more | Find emails |
| ascendmath.com | #866,675 | Apache, Bootstrap, Font Awesome + 11 more | Find emails |
| centrix.co.nz | #866,894 | Amazon (ACM), Amazon Route 53, Backbone.js + 8 more | Find emails |
| ytaunion.com | #866,945 | Fancybox, Google Analytics, Google Maps + 5 more | Find emails |
| proxydeals.com | #867,142 | Cloudflare edge/CDN, Font Awesome, Google Analytics + 10 more | Find emails |
| bedinger.com | #867,192 | Apache, Font Awesome, Google Analytics + 10 more | Find emails |
| boldprogressives.org | #867,260 | BambooHR, Bootstrap, DoubleClick (Google Ads) + 15 more | Find emails |
| portasouthjetty.com | #867,440 | AddToAny, All in One SEO, Apache + 11 more | Find emails |
| well-beingsecrets.com | #867,579 | Apache, DMCA.com Protection, Font Awesome + 12 more | Find emails |
| shipwreckmuseum.com | #867,747 | Font Awesome, Google Analytics, Google Tag Manager + 6 more | Find emails |
| ncd.io | #867,854 | Amazon Route 53, Apache, Font Awesome + 11 more | Find emails |
| everestlodgelukla.com | #867,900 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 5 more | Find emails |
| theheraldtimes.com | #867,907 | All in One SEO, BigScoots, Cloudflare + 9 more | Find emails |
| terrain-mag.com | #867,945 | Google Analytics, Google Site Kit, Google Tag Manager + 11 more | Find emails |
| tappingqanda.com | #868,046 | Apache, Backbone.js, Google Analytics + 6 more | Find emails |
| gabastorecr.com | #868,232 | Google Fonts, Let's Encrypt, LiteSpeed + 4 more | Find emails |
| asynthroid.com | #868,363 | Bunny Fonts, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| sylvansport.com | #868,561 | Bootstrap, Cloudflare, Cloudflare Bot Management + 22 more | Find emails |
| elbonet.pl | #868,613 | Apache, Cloudflare Turnstile, CookieYes + 7 more | Find emails |
| gemini.no | #868,668 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 10 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 →