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 |
|---|---|---|---|
| assieasy.com | #977,523 | Apache, Google Fonts, Google Tag Manager + 6 more | Find emails |
| ilivehere.co.uk | #977,654 | All in One SEO, Backbone.js, Cloudflare + 13 more | Find emails |
| allschoolabs.com | #977,912 | Brevo, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| cigarjournal.com | #978,003 | Adobe Fonts (Typekit), Bootstrap, Cloudflare + 11 more | Find emails |
| mcaai.fr | #978,119 | Apache, Font Awesome, Google Analytics + 10 more | Find emails |
| monkeypodasia.com | #978,251 | Bootstrap, Font Awesome, Google Fonts + 11 more | Find emails |
| bordet.be | #978,289 | Bootstrap, Drupal, Google Analytics + 3 more | Find emails |
| cisartrieste.it | #978,488 | Backbone.js, Bootstrap, Font Awesome + 5 more | Find emails |
| sitetheidea.com | #978,505 | AOS, Bootstrap, Fancybox + 16 more | Find emails |
| physiotape.de | #978,804 | Adobe Fonts (Typekit), Font Awesome, Google Fonts + 11 more | Find emails |
| kfz-faktura.de | #978,814 | Apache, Sectigo, WooCommerce + 3 more | Find emails |
| updez.ro | #979,207 | Font Awesome, Google Analytics, Google Fonts + 9 more | Find emails |
| iq-tel.net | #979,623 | All in One SEO, Bootstrap, Font Awesome + 11 more | Find emails |
| spike-chunsoft.com | #979,688 | Amazon Route 53, Apache, Bluesky + 16 more | Find emails |
| babyandmummy.com.au | #979,714 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Analytics + 9 more | Find emails |
| f-obermayer.de | #979,985 | Apache, Bootstrap, Let's Encrypt + 6 more | Find emails |
| renzo.com.co | #980,001 | Bootstrap, Brevo, Font Awesome + 14 more | Find emails |
| bodybeyondbirth.com | #980,181 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| nationalcasagal.org | #980,371 | Cloudflare Bot Management, Cloudflare edge/CDN, Font Awesome + 13 more | Find emails |
| aeo-inc.com | #980,424 | Google Tag Manager, Let's Encrypt, New Relic + 7 more | Find emails |
| gnahs.com | #980,665 | Cloudflare, Google Fonts, Google Maps + 6 more | Find emails |
| citeam.org | #980,875 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 4 more | Find emails |
| itforchange.net | #980,950 | Apache, Bootstrap, Drupal + 5 more | Find emails |
| qreativethemes.com | #981,021 | Bootstrap, Cloudflare, Cloudflare Turnstile + 11 more | Find emails |
| mamanclub.fun | #981,025 | Backbone.js, Google Fonts, Let's Encrypt + 6 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 →