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 |
|---|---|---|---|
| varsity.co.uk | #136,892 | Cloudflare edge/CDN, DataTables, Font Awesome + 15 more | Find emails |
| sunlitcentrekenya.co.ke | #137,055 | Apache, Cloudflare, Fancybox + 11 more | Find emails |
| shootinfo.com | #137,090 | Google Analytics, Google Fonts, Google Tag Manager + 9 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| freelancersunion.org | #137,302 | Amazon Route 53, Bootstrap, Cloudflare Bot Management + 19 more | Find emails |
| artforkidshub.com | #137,470 | Amazon Route 53, Google AdSense, Google Analytics + 7 more | Find emails |
| innovationnewsnetwork.com | #137,490 | Cloudflare, Cloudflare edge/CDN, Cookie-Script + 10 more | Find emails |
| rpgstash.com | #137,558 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 16 more | Find emails |
| naturalearthdata.com | #137,720 | Cloudflare, Endurance International Group, Gravatar + 4 more | Find emails |
| kodif.ai | #137,975 | AOS, Amazon Route 53, Cloudflare Bot Management + 18 more | Find emails |
| mobile.uz | #138,011 | AOS, Apache, Bootstrap + 4 more | Find emails |
| asaecenter.org | #138,165 | AngularJS, Azure DNS, Azure Front Door + 15 more | Find emails |
| gaming.gen.tr | #139,376 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 5 more | Find emails |
| ehardhat.com | #139,388 | AdRoll, Bootstrap, Cloudflare + 18 more | Find emails |
| idmi.net | #140,008 | ASP.NET, Bootstrap, Font Awesome + 4 more | Find emails |
| weavesilk.com | #140,403 | Amazon Route 53, Amazon S3, Font Awesome + 6 more | Find emails |
| striketi.com.br | #141,337 | Cloudflare, Google Fonts, Hostinger + 8 more | Find emails |
| cheapjerseys13.com | #141,609 | Cloudflare, Cloudflare edge/CDN, Fancybox + 10 more | Find emails |
| qst.go.jp | #141,899 | Font Awesome, Google Analytics, Google Fonts + 5 more | Find emails |
| opendevelopmentmekong.net | #141,968 | All in One SEO, Font Awesome, Google Analytics + 11 more | Find emails |
| rbcbank.com | #142,139 | Akamai edge/CDN, Bootstrap, Google Tag Manager + 4 more | Find emails |
| seoreviewtools.com | #142,398 | Bootstrap, Clicky, Cloudflare + 13 more | Find emails |
| nationalcprfoundation.com | #142,400 | All in One SEO, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| alapark.com | #142,493 | Bootstrap, Bulma, Drupal + 13 more | Find emails |
| plosbiology.org | #142,510 | Apache, Bluesky, Cloudflare + 8 more | Find emails |
| canadianlawyermag.com | #142,611 | ASP.NET, Algolia, Azure API Management + 15 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 →