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 |
|---|---|---|---|
| shom.fr | #124,657 | Apache, Bootstrap, Drupal + 6 more | Find emails |
| decoyrental.com | #125,307 | Apache, Bootstrap, Endurance International Group + 8 more | Find emails |
| hosts.co.uk | #125,318 | Apache, Google Tag Manager, Sectigo + 1 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| novascotia.com |
| #125,371 |
| DigiCert, DoubleClick (Google Ads), Google Fonts + 12 more |
| Find emails |
| printwayy.com | #125,745 | ASP.NET, Adopt, Backbone.js + 18 more | Find emails |
| masterbase.com | #125,809 | Adobe Fonts (Typekit), Backbone.js, Bootstrap + 13 more | Find emails |
| ilbello.com | #125,843 | Apache, Google AdSense, Google Analytics + 7 more | Find emails |
| newswire.co.kr | #126,345 | Apache, Bootstrap, Google Analytics + 8 more | Find emails |
| dataforseo.com | #126,356 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 9 more | Find emails |
| newswire.lk | #126,565 | Amazon Route 53, Bootstrap, DoubleClick (Google Ads) + 12 more | Find emails |
| cheapjerseys4wholesale.com | #127,051 | Cloudflare, Cloudflare edge/CDN, Fancybox + 10 more | Find emails |
| plosmedicine.org | #127,404 | Apache, Cloudflare, Google Fonts + 7 more | Find emails |
| swordblog.com | #128,342 | Apache, Let's Encrypt, WordPress + 1 more | Find emails |
| tarrantcounty.com | #128,791 | Adobe Experience Cloud (Launch), Apache, Microsoft 365 + 4 more | Find emails |
| masrefacciones.mx | #128,840 | Amazon CloudFront, Amazon Route 53, Bootstrap + 12 more | Find emails |
| urbanize.city | #129,155 | Apache, Bootstrap, Cloudflare edge/CDN + 7 more | Find emails |
| nic.ar | #129,191 | AddToAny, Bootstrap, Drupal + 13 more | Find emails |
| flacsoandes.edu.ec | #129,548 | AddToAny, Backbone.js, Bootstrap + 13 more | Find emails |
| ow.gr | #130,013 | AddThis, Backbone.js, Cloudflare + 9 more | Find emails |
| translationspress.com | #130,460 | Apache, Bootstrap, DataTables + 11 more | Find emails |
| allmynursejobs.com | #130,536 | Apache, Font Awesome, Google Fonts + 9 more | Find emails |
| everi.com | #130,675 | Adobe Fonts (Typekit), Bootstrap, Cloudflare Bot Management + 13 more | Find emails |
| ccsnh.edu | #130,980 | Azure DNS, Bootstrap, Cloudflare Bot Management + 18 more | Find emails |
| pearsonaccessnext.com | #131,033 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 7 more | Find emails |
| actugaming.net | #131,375 | Bluesky, Cloudflare, Cloudflare Turnstile + 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 →