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 |
|---|---|---|---|
| planetbike.ro | #255,949 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 12 more | Find emails |
| aboutnursepractitionerjobs.com | #255,989 | Apache, Font Awesome, Google Analytics + 10 more | Find emails |
| velesstroy.com | #256,005 | All in One SEO, Bitrix, DDoS-Guard + 13 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| generatebiomedicines.com | #256,013 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| mondomedia.com | #256,391 | Bootstrap, Font Awesome, Google Analytics + 9 more | Find emails |
| the22koreanwar.org | #256,458 | Adobe Fonts (Typekit), Backbone.js, Bootstrap + 16 more | Find emails |
| eoshd.com | #256,491 | Apache, Font Awesome, Google Analytics + 12 more | Find emails |
| reedexpo.co.jp | #256,497 | Amazon CloudFront, Apache, Bootstrap + 10 more | Find emails |
| carbodydesign.com | #256,647 | Fancybox, Feedburner, Font Awesome + 9 more | Find emails |
| viaplayradio.se | #256,800 | Backbone.js, Cloudflare, Cloudflare Bot Management + 11 more | Find emails |
| allmyusjobs.com | #256,919 | Apache, Font Awesome, Google Fonts + 10 more | Find emails |
| auvsi.org | #256,928 | Adobe Fonts (Typekit), DoubleClick (Google Ads), Google Analytics + 15 more | Find emails |
| texasksa.org | #257,519 | Google Fonts, PHP, Sucuri + 5 more | Find emails |
| rollonfriday.com | #257,711 | AddToAny, Bootstrap, Cloudflare + 16 more | Find emails |
| pathofthesage.com | #257,745 | Apache, Bootstrap, Endurance International Group + 13 more | Find emails |
| jattskipbinhire.com.au | #257,823 | Apache, Bootstrap, Font Awesome + 13 more | Find emails |
| flywheel-publishing.com | #258,216 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| hasitleaked.com | #258,262 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 17 more | Find emails |
| sportsmockery.com | #258,418 | 33Across, Amazon Advertising, Backbone.js + 24 more | Find emails |
| news161.ru | #258,436 | Backbone.js, Bunny Fonts, Font Awesome + 8 more | Find emails |
| ng-physics.com | #258,527 | Apache, Backbone.js, Font Awesome + 5 more | Find emails |
| worldofwarplanes.com | #258,945 | Django, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| allroundautomations.com | #258,966 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| danariely.com | #259,164 | Elfsight, Google Analytics, Google Cloud DNS + 13 more | Find emails |
| miamitodaynews.com | #259,391 | Fancybox, Font Awesome, Google AdSense + 10 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 →