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 |
|---|---|---|---|
| bunsimt.ro | #259,435 | Bootstrap, Font Awesome, Google Fonts + 8 more | Find emails |
| inovonics.com | #259,463 | Apache, Azure DNS, CookieYes + 11 more | Find emails |
| tik-tak.net | #259,776 | Backbone.js, Cloudflare, Google Workspace + 4 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| anwalt-seiten.de |
| #260,097 |
| Blockthrough, Font Awesome, Google Analytics + 10 more |
| Find emails |
| britisheventing.com | #260,390 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 17 more | Find emails |
| appliancetvoutlet.com | #260,446 | Google Ads Conversion, Google Analytics, Google Tag Manager + 8 more | Find emails |
| mercator.si | #260,908 | Google Hosted Libraries, Google Tag Manager, Let's Encrypt + 11 more | Find emails |
| ribboncommunications.com | #260,953 | AOS, Azure DNS, Bootstrap + 21 more | Find emails |
| mainstreetmediatn.com | #261,096 | AddToAny, All in One SEO, Apache + 15 more | Find emails |
| writeaprisoner.com | #261,292 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 17 more | Find emails |
| nccp.org | #261,515 | Apache, Backbone.js, Bluesky + 7 more | Find emails |
| mandelosports.com | #261,638 | Bootstrap, Font Awesome, Google Fonts + 5 more | Find emails |
| visainfinite.ca | #262,119 | Bootstrap, Cloudflare edge/CDN, Tealium + 2 more | Find emails |
| planetgirlsstore.com.br | #262,415 | Amazon CloudFront, Bootstrap, Font Awesome + 9 more | Find emails |
| jugend-forscht.de | #262,455 | ASP.NET, Apache, Fonts.com + 8 more | Find emails |
| wealthprofessional.ca | #262,469 | ASP.NET, Algolia, Azure API Management + 15 more | Find emails |
| parentzone.org.uk | #262,681 | Bluesky, Bootstrap, Drupal + 9 more | Find emails |
| hemispheregames.com | #263,022 | Endurance International Group, Google Analytics, Google Fonts + 5 more | Find emails |
| elive.net | #263,089 | Font Awesome, Google Analytics, Google Fonts + 7 more | Find emails |
| vidanuevadigital.com | #263,194 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 13 more | Find emails |
| slopeofhope.com | #263,278 | Apache, AppNexus, Bootstrap + 11 more | Find emails |
| nursing.com | #263,452 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 19 more | Find emails |
| broadstreethockey.com | #263,499 | Bluesky, Cloudflare Turnstile, DoubleClick (Google Ads) + 15 more | Find emails |
| publisso.de | #263,516 | Apache, Bootstrap, Drupal + 10 more | Find emails |
| snru.ac.th | #263,554 | Nginx, Sectigo, Vimeo + 3 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 →