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 |
|---|---|---|---|
| caretas.pe | #320,907 | Font Awesome, Google Analytics, Google Fonts + 10 more | Find emails |
| deeppurple.com | #321,345 | Cloudflare edge/CDN, Font Awesome, Google Fonts + 12 more | Find emails |
| happymonday.ua | #321,348 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 14 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| visitalexandria.com | #321,895 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| dinagoldstein.com | #321,914 | Adobe Fonts (Typekit), Chart.js, Cloudflare + 13 more | Find emails |
| zmangames.com | #321,973 | Bootstrap, Didomi, GSAP + 11 more | Find emails |
| huntscanlon.com | #322,123 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 16 more | Find emails |
| bodhilinux.com | #322,624 | Apache, Google Analytics, Google Fonts + 8 more | Find emails |
| html5-chat.com | #322,974 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| travelupdate.com | #323,239 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| safariclub.org | #323,395 | Cloudflare Bot Management, Cloudflare edge/CDN, Fancybox + 11 more | Find emails |
| balticlivecam.com | #323,748 | Bootstrap, Cloudflare, DoubleClick (Google Ads) + 11 more | Find emails |
| theboar.org | #323,817 | Google Analytics, Google Fonts, Let's Encrypt + 7 more | Find emails |
| bleav.com | #323,824 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| nasw.org | #324,064 | Apache, Bluesky, Bootstrap + 8 more | Find emails |
| kennedy.edu.ar | #324,443 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| otopark.com | #324,502 | Cloudflare, ConsentMo, Font Awesome + 12 more | Find emails |
| stopworldcontrol.com | #325,236 | Google Fonts, Let's Encrypt, Nginx + 5 more | Find emails |
| bikebound.com | #325,272 | Clicky, Cloudflare, Cloudflare edge/CDN + 18 more | Find emails |
| geducar.com | #325,469 | AddToAny, Bootstrap, Cloudflare + 13 more | Find emails |
| cigardepot.us | #325,933 | All in One SEO, Bootstrap, Cloudflare + 10 more | Find emails |
| visa.eu | #325,999 | Bootstrap, Cloudflare edge/CDN, Tealium + 2 more | Find emails |
| 1-2.su | #326,122 | Bootstrap, Font Awesome, Let's Encrypt + 6 more | Find emails |
| geekom.de | #326,144 | Ahrefs Analytics, Awin, Bootstrap + 19 more | Find emails |
| strategicfront.org | #326,510 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 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 →