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 |
|---|---|---|---|
| tooeleonline.com | #917,782 | AddToAny, All in One SEO, Apache + 11 more | Find emails |
| fralinpickups.com | #917,910 | Bootstrap, Cloudflare, Cloudflare Turnstile + 12 more | Find emails |
| ashden.org | #917,964 | Font Awesome, Foundation, Google Fonts + 10 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| urbnsurf.com | #918,353 | Amazon CloudFront, Amazon S3, Cloudflare + 14 more | Find emails |
| lotilabs.com | #918,403 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 6 more | Find emails |
| maderterraneo.com | #918,683 | Font Awesome, Google Tag Manager, Let's Encrypt + 11 more | Find emails |
| rosatina.com | #918,749 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 9 more | Find emails |
| uswings.com | #919,002 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 8 more | Find emails |
| repclinica.ru | #919,130 | Backbone.js, Bootstrap, Font Awesome + 15 more | Find emails |
| thetemplebarpub.com | #919,165 | Google Analytics, Google Hosted Libraries, Google Maps + 12 more | Find emails |
| barvikhahotel.com | #919,169 | Backbone.js, Google Analytics, Google Tag Manager + 5 more | Find emails |
| racc.edu | #919,228 | Backbone.js, Drupal, Fastly + 12 more | Find emails |
| shoot.co.uk | #919,337 | Backbone.js, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| extraplugins.com | #919,347 | Brevo, Cloudflare, Cloudflare Turnstile + 14 more | Find emails |
| thecynefin.co | #919,418 | Amazon Route 53, Bootstrap, Google Fonts + 8 more | Find emails |
| uniquect.ca | #919,493 | All in One SEO, Font Awesome, Google Fonts + 10 more | Find emails |
| nyskiblog.com | #919,795 | Cloudflare, Cloudflare edge/CDN, Endurance International Group + 8 more | Find emails |
| aloo.com.br | #919,892 | Font Awesome, Google Ads Conversion, Google Analytics + 10 more | Find emails |
| biobirths.com | #919,901 | Branch, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| homesteadgardens.com | #919,955 | AppNexus, Cloudflare, Cloudflare edge/CDN + 12 more | Find emails |
| cabaretvert.com | #920,093 | Fancybox, Font Awesome, Foundation + 10 more | Find emails |
| gesi.org | #920,290 | Adobe Fonts (Typekit), All in One SEO, Google Analytics + 9 more | Find emails |
| msgalltrading.com | #920,521 | Backbone.js, Bootstrap, Font Awesome + 11 more | Find emails |
| tee-classics.ch | #920,638 | Font Awesome, Let's Encrypt, Nginx + 4 more | Find emails |
| lumahosting.com | #920,676 | Bootstrap, Bunny Fonts, Font Awesome + 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 →