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 |
|---|---|---|---|
| soflyy.com | #638,154 | Google Analytics, Google Fonts, Google Tag Manager + 8 more | Find emails |
| dynamicscommunities.com | #638,237 | Bootstrap, Cloudflare, Cloudflare Bot Management + 11 more | Find emails |
| canadianinquirer.net | #638,377 | Bunny Fonts, Font Awesome, Google Analytics + 11 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| infilaindianaedizioni.com | #638,477 | Apache, Bootstrap, Fancybox + 8 more | Find emails |
| polynet.lviv.ua | #638,561 | Bootstrap, Laravel, Let's Encrypt + 4 more | Find emails |
| parvanweb.ir | #638,690 | Apache, Easy Digital Downloads, Let's Encrypt + 6 more | Find emails |
| cyro.ru | #638,890 | Font Awesome, Let's Encrypt, LiveInternet (Yadro) + 4 more | Find emails |
| madrona.com | #639,047 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 15 more | Find emails |
| alexanderjarvis.com | #639,165 | Calendly, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| almacen.do | #639,219 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 9 more | Find emails |
| warbases.co.uk | #639,270 | Bluesky, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| ergonomictrends.com | #639,286 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| patchmd.com | #639,405 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 9 more | Find emails |
| tapastildoren.dk | #639,642 | Google Fonts, Let's Encrypt, Moment.js + 6 more | Find emails |
| ofbf.org | #640,003 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 18 more | Find emails |
| strasburgo.co.jp | #640,188 | Adobe Fonts (Typekit), Amazon Route 53, Apache + 15 more | Find emails |
| australiasguide.com | #640,634 | Backbone.js, Breeze, Cloudflare Bot Management + 15 more | Find emails |
| cocoeast.ca | #640,756 | DoubleClick (Google Ads), Google Analytics, Google Fonts + 9 more | Find emails |
| ntchito.com | #640,920 | AddToAny, Google Tag Manager, Let's Encrypt + 8 more | Find emails |
| ortorex.nl | #640,932 | All in One SEO, Bootstrap, Cloudflare + 15 more | Find emails |
| cookcountyassessor.com | #641,179 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 12 more | Find emails |
| marinelife.org | #641,401 | CallRail, Cloudflare, Cloudflare edge/CDN + 14 more | Find emails |
| asianmhc.org | #641,415 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| lawyerport.com | #641,456 | Amazon (ACM), Amazon Route 53, Backbone.js + 4 more | Find emails |
| sacranet.com.br | #641,471 | Apache, Backbone.js, Font Awesome + 4 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 →