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 |
|---|---|---|---|
| voipia.net | #526,847 | Amazon Route 53, Google Cloud DNS, Let's Encrypt + 6 more | Find emails |
| hostingowo.pl | #526,937 | Apache, Bootstrap, Bunny Fonts + 7 more | Find emails |
| capitalina.ru | #527,109 | Cloudflare, Let's Encrypt, Nginx + 4 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| shtorm.com |
| #527,220 |
| Apache, Drupal, Font Awesome + 5 more |
| Find emails |
| gematrinator.com | #527,628 | Apache, Bootstrap, Fancybox + 8 more | Find emails |
| derichebourg.com | #527,913 | AngularJS, Apache, Bootstrap + 9 more | Find emails |
| bns.nl | #528,203 | Adobe Fonts (Typekit), Apache, Font Awesome + 14 more | Find emails |
| semantic-web.at | #528,439 | Adobe Fonts (Typekit), Amazon Route 53, DigiCert + 9 more | Find emails |
| scottishattire.com | #528,642 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 13 more | Find emails |
| koko.org | #528,769 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 16 more | Find emails |
| quotapath.com | #528,870 | ClickCease, Cloudflare Bot Management, Cloudflare edge/CDN + 20 more | Find emails |
| sillyseason.com | #528,990 | Google Analytics, Google Fonts, Google Tag Manager + 7 more | Find emails |
| apteekki.fi | #529,142 | Cookiebot, Fancybox, Fonts.com + 10 more | Find emails |
| models-world.com | #529,163 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 10 more | Find emails |
| broadcastprome.com | #529,466 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 8 more | Find emails |
| thefamilydinnerproject.org | #529,535 | Font Awesome, Google Fonts, Google Hosted Libraries + 15 more | Find emails |
| jerrymilojohnson.com | #529,786 | Endurance International Group, Google Analytics, Let's Encrypt + 3 more | Find emails |
| habri.org | #530,273 | Adobe Fonts (Typekit), Apache, Bootstrap + 8 more | Find emails |
| opentracking.co.uk | #530,428 | Font Awesome, Google Analytics, Google Tag Manager + 8 more | Find emails |
| clareys.com | #530,486 | Font Awesome, Google Analytics, Google Tag Manager + 9 more | Find emails |
| margaretatwood.ca | #530,661 | Font Awesome, Google Analytics, Google Fonts + 9 more | Find emails |
| twst.com | #530,831 | Amazon (ACM), Authorize.net, Bootstrap + 13 more | Find emails |
| putler.com | #530,942 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 22 more | Find emails |
| howitworksdaily.com | #531,107 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 13 more | Find emails |
| mv-schloesser.de | #531,528 | Apache, DigiCert, Google Hosted Libraries + 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 →