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 |
|---|---|---|---|
| theeducationhub.org.nz | #612,867 | Foundation, Google Fonts, Google Site Kit + 9 more | Find emails |
| transformer-magazine.com | #612,935 | Google Analytics, Google Fonts, Google Tag Manager + 6 more | Find emails |
| kncihosting.com | #613,082 | Apache, Font Awesome, Google Fonts + 5 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| thkware.com | #613,130 | Branch, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| cel.ly | #613,190 | Amazon Route 53, Amazon S3, Branch + 9 more | Find emails |
| plospathogens.org | #613,322 | Apache, Cloudflare, Google Fonts + 7 more | Find emails |
| asimn.org | #613,439 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 15 more | Find emails |
| macomp.com | #613,487 | Apache, Fancybox, Font Awesome + 7 more | Find emails |
| fuhem.es | #613,500 | AngularJS, Apache, Bluesky + 13 more | Find emails |
| trsil.org | #613,503 | Bootstrap, Drupal, Fastly + 12 more | Find emails |
| foxyform.de | #613,637 | Blockthrough, Google Fonts, Google Tag Manager + 8 more | Find emails |
| customboxesmart.com | #613,731 | Font Awesome, Google Fonts, Google Tag Manager + 8 more | Find emails |
| quickfixrepaircenter.com | #613,753 | Font Awesome, Google Analytics, Google Fonts + 9 more | Find emails |
| damamobilespares.co.ke | #613,829 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 7 more | Find emails |
| capitalcitygunforum.com | #613,857 | Backbone.js, Font Awesome, Google AdSense + 7 more | Find emails |
| scmi.at | #613,901 | Bootstrap, Font Awesome, Google Fonts + 5 more | Find emails |
| cookology.com | #614,116 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 16 more | Find emails |
| 0921.co.kr | #614,299 | Apache, Modernizr, Sectigo + 3 more | Find emails |
| jindalsaw.com | #614,310 | ASP.NET, Apache, Bootstrap + 12 more | Find emails |
| legiscomex.com | #614,370 | Amazon (ACM), Amazon CloudFront, Apache + 8 more | Find emails |
| pepiniereslesdomaines.com | #614,385 | Font Awesome, Let's Encrypt, LiteSpeed + 3 more | Find emails |
| arielcar.it | #614,537 | Google Analytics, Google Fonts, Google Tag Manager + 7 more | Find emails |
| fsris.org.rs | #614,640 | Bootstrap, Font Awesome, Google Analytics + 8 more | Find emails |
| drpeppermuseum.com | #614,719 | Bootstrap, Cloudflare, Cloudflare Bot Management + 10 more | Find emails |
| golmarket.co.kr | #614,888 | Apache, Google Analytics, Google Tag Manager + 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 →