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 |
|---|---|---|---|
| endangeredlanguages.com | #379,461 | AOS, Bluesky, Cloudflare + 10 more | Find emails |
| swisschems.is | #379,949 | Bugsnag, Cloudflare, Cloudflare Bot Management + 13 more | Find emails |
| android-fest.ru | #380,106 | Font Awesome, Google AdSense, Google Fonts + 5 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| sqlbolt.com | #380,436 | Bootstrap, Google AdSense, Google Analytics + 10 more | Find emails |
| agrodigital.com | #381,212 | AddToAny, Backbone.js, Google Fonts + 7 more | Find emails |
| telxius.com | #381,388 | CookieYes, DigiCert, Google Analytics + 10 more | Find emails |
| sapporo-park.or.jp | #381,660 | Bootstrap, Fancybox, Google Analytics + 8 more | Find emails |
| thebull.com.au | #381,794 | All in One SEO, DoubleClick (Google Ads), Google Publisher Tag + 9 more | Find emails |
| staffordbc.gov.uk | #381,914 | Bootstrap, Cloudflare Bot Management, Cloudflare Turnstile + 9 more | Find emails |
| thepublicgroup.com | #382,474 | Bootstrap, Chart.js, Fancybox + 7 more | Find emails |
| interten.gr | #382,509 | Adman, Font Awesome, Google Ads Conversion + 14 more | Find emails |
| caroutlet.eu | #382,620 | DoubleClick (Google Ads), Google Ads Conversion, Google Analytics + 7 more | Find emails |
| bestcialis20mg.com | #382,800 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| antiquejewellerycompany.com | #382,839 | Algolia, Bootstrap, Google Cloud DNS + 12 more | Find emails |
| ntr24.tv | #383,058 | Amazon Route 53, Apache, Backbone.js + 15 more | Find emails |
| worldofappliancesbh.com | #383,132 | Bootstrap, Google Fonts, Google Tag Manager + 8 more | Find emails |
| malarkeyroofing.com | #383,740 | Amazon (ACM), Google Fonts, Google Tag Manager + 5 more | Find emails |
| xtra.dog | #383,920 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 9 more | Find emails |
| britainfromabove.org.uk | #384,098 | Apache, Bootstrap, DigiCert + 7 more | Find emails |
| wdtprs.com | #384,283 | AddToAny, Apache, Google Publisher Tag + 8 more | Find emails |
| feec.cat | #384,515 | Amazon Route 53, Apache, Bootstrap + 9 more | Find emails |
| prazdroj.cz | #384,542 | Google Analytics, Google Fonts, Google Hosted Libraries + 9 more | Find emails |
| majas.in | #384,749 | Font Awesome, Google Analytics, Google Tag Manager + 9 more | Find emails |
| insidetowers.com | #384,753 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 17 more | Find emails |
| bme.com | #385,338 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 4 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 →