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 |
|---|---|---|---|
| thelocalsingles.com | #834,294 | Backbone.js, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| thewhole-shebang.co.uk | #834,500 | Bootstrap, CleanTalk, Cloudflare Turnstile + 12 more | Find emails |
| think-ecuador.com | #834,536 | Hostinger, Hotjar, Let's Encrypt + 8 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| thoorigaitamilnovels.com | #834,580 | All in One SEO, Apache, Backbone.js + 13 more | Find emails |
| thornburybroncos.com | #834,583 | Branch, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| thuisbatterij.nl | #834,617 | Cloudflare Bot Management, Cloudflare edge/CDN, Cookiebot + 14 more | Find emails |
| tickdiarios.com | #834,661 | Google AdSense, Google Analytics, Google Fonts + 9 more | Find emails |
| tiendasel.com | #834,757 | Amazon CloudFront, Bootstrap, Cookie-Script + 14 more | Find emails |
| tiendaspls.com | #834,763 | AdRoll, Cloudflare, Cloudflare edge/CDN + 14 more | Find emails |
| tilkiscans.com | #834,895 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| tokomasjawa.com | #835,408 | Amazon Route 53, Font Awesome, Google Analytics + 10 more | Find emails |
| tokyo-cy.jp | #835,430 | Adobe Fonts (Typekit), All in One SEO, Backbone.js + 12 more | Find emails |
| toplickevesti.com | #835,702 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 14 more | Find emails |
| totalrenting.com | #835,924 | Cloudflare, Google Analytics, Google Tag Manager + 8 more | Find emails |
| trans4men.com | #836,278 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 14 more | Find emails |
| trippi.st | #836,630 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 11 more | Find emails |
| trutronica.com | #836,793 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 13 more | Find emails |
| tssands.com | #836,892 | Font Awesome, Google Analytics, Google Fonts + 10 more | Find emails |
| tuateaferries.com | #837,018 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 11 more | Find emails |
| tunrooms.com | #837,161 | AngularJS, Apache, Bootstrap + 21 more | Find emails |
| tutiendaenpanales.es | #837,278 | CleanTalk, Google Analytics, Google Maps + 10 more | Find emails |
| tutungaleata.ro | #837,302 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| uban4dnih.com | #837,652 | Branch, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| ulandka.com | #838,085 | Cloudflare, Cloudflare edge/CDN, Cookiebot + 12 more | Find emails |
| ullapopken.gr | #838,104 | Bootstrap, Font Awesome, Google Analytics + 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 →