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 |
|---|---|---|---|
| parts-country.com | #974,921 | Google Analytics, Google Tag Manager, Hostinger + 7 more | Find emails |
| brno-ultimate.cz | #974,923 | All in One SEO, Apache, CookieYes + 6 more | Find emails |
| aveceng.com | #974,983 | Let's Encrypt, Namecheap, Nginx + 1 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| kpbsd.k12.ak.us | #975,034 | Backbone.js, Fancybox, Font Awesome + 5 more | Find emails |
| odorem-dz.com | #975,274 | Apache, Font Awesome, Let's Encrypt + 6 more | Find emails |
| geegees.ca | #975,335 | Apache, Bootstrap, DigiCert + 3 more | Find emails |
| globalcovering.com | #975,367 | FlagCDN, Google Analytics, Google Fonts + 8 more | Find emails |
| myliftmaster.com | #975,677 | Amazon (ACM), Amazon Route 53, Cloudflare Bot Management + 5 more | Find emails |
| naviexpert.pl | #975,736 | Adobe Fonts (Typekit), Apache, Google Analytics + 12 more | Find emails |
| kiwibooks.in | #975,816 | Akamai mPulse, Let's Encrypt, LiteSpeed + 7 more | Find emails |
| jetourautoparts.com | #975,884 | All in One SEO, Bootstrap, Cloudflare + 9 more | Find emails |
| rvgroupofhotels.com | #975,913 | Let's Encrypt, Nginx, Varnish + 2 more | Find emails |
| brinkwire.com | #976,054 | Apache, Backbone.js, Google AdSense + 4 more | Find emails |
| leganavale.it | #976,112 | Apache, Owl Carousel, Sectigo + 1 more | Find emails |
| onlinebicyclemuseum.co.uk | #976,277 | Google Analytics, Google Tag Manager, Gravatar + 5 more | Find emails |
| girlfriendsfilmsnews.com | #976,322 | Apache, Google Fonts, Gravatar + 7 more | Find emails |
| dralegal.org | #976,338 | Adobe Fonts (Typekit), Apache, Azure DNS + 8 more | Find emails |
| apparelpnw.com | #976,360 | Cloudflare, Cloudflare edge/CDN, Google AdSense + 9 more | Find emails |
| haywardemergencyplumbing.com | #976,861 | All in One SEO, Google Analytics, Google Fonts + 5 more | Find emails |
| purrests.com | #976,971 | Elementor, Font Awesome, Google Fonts + 7 more | Find emails |
| marginallyclever.com | #977,101 | Amazon CloudFront, Bootstrap, Cloudflare + 12 more | Find emails |
| esuus.org | #977,213 | Adobe Fonts (Typekit), Axios, Backbone.js + 16 more | Find emails |
| ijeat.org | #977,324 | Backbone.js, Font Awesome, Google Analytics + 6 more | Find emails |
| gorecell.ca | #977,397 | AOS, Bootstrap, Cloudflare Bot Management + 19 more | Find emails |
| unitedsoybean.org | #977,435 | Adobe Fonts (Typekit), Cloudflare Bot Management, Cloudflare edge/CDN + 9 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 →