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 |
|---|---|---|---|
| gtfundmanagers.com | #745,155 | Amazon CloudFront, ConsentMo, Google Analytics + 10 more | Find emails |
| kreston.com | #745,255 | AddToAny, Bootstrap, Cloudflare + 15 more | Find emails |
| opticasjimenez.com | #745,259 | Cloudflare, Font Awesome, Google Analytics + 12 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| offcenterharbor.com | #745,339 | Bootstrap, Cloudflare, Cloudflare Bot Management + 18 more | Find emails |
| digital-d.co.uk | #745,464 | Adobe Fonts (Typekit), Calendly, Font Awesome + 10 more | Find emails |
| voltcaresolutions.com | #745,679 | Bootstrap, Font Awesome, Google Fonts + 10 more | Find emails |
| ngp-ua.info | #745,777 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| drcsurveys.com | #745,856 | Amazon Route 53, Google Analytics, Google Fonts + 12 more | Find emails |
| jimgreenfootwear.com | #745,920 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 8 more | Find emails |
| milehighcompounds.is | #746,144 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| mywellportal.com | #746,319 | AOS, Adobe Fonts (Typekit), Cloudflare + 13 more | Find emails |
| ru-login.ru | #746,467 | Font Awesome, Let's Encrypt, Nginx + 4 more | Find emails |
| liftoffcerts.com | #746,513 | Cloudflare Bot Management, Cloudflare edge/CDN, Font Awesome + 11 more | Find emails |
| ismartrent.com | #746,721 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| halfsms.co.kr | #746,876 | Apache, Google Analytics, Google Tag Manager + 5 more | Find emails |
| dermage.com.br | #747,176 | Amazon CloudFront, Azure DNS, Bootstrap + 9 more | Find emails |
| gdz.ge | #747,328 | Font Awesome, Google Analytics, Google Fonts + 8 more | Find emails |
| kadohome.co.il | #747,560 | Font Awesome, Google Analytics, Google Fonts + 13 more | Find emails |
| grupoyuandong.com | #747,649 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 4 more | Find emails |
| boutiqueottoman.com | #747,934 | Amazon Pay, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| kingstonmidstream.com | #748,175 | ASP.NET, Backbone.js, Bootstrap + 8 more | Find emails |
| hubsch-interior.com | #748,256 | Cookiebot, Google Tag Manager, Hotjar + 8 more | Find emails |
| free-website-hit-counter.com | #748,775 | Branch, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| prehistoricoregon.com | #748,867 | All in One SEO, Cloudflare, Cloudflare edge/CDN + 12 more | Find emails |
| monimmeuble.com | #749,145 | AddToAny, Bunny Fonts, Google AdSense + 12 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 →