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.
Other javascript library & framework
| # | 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 |
|---|---|---|---|
| santos.com | #61,293 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| suedtirolnews.it | #61,755 | Cloudflare, Didomi, Google Analytics + 9 more | Find emails |
| dut.ac.za | #61,919 | Apache, Bootstrap, Font Awesome + 11 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| goalline.ca |
| #61,989 |
| Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more |
| Find emails |
| igashub.com | #62,067 | Bootstrap, Font Awesome, Let's Encrypt + 2 more | Find emails |
| ugc.fr | #62,213 | Bootstrap, Font Awesome, Friendly Captcha + 9 more | Find emails |
| iclei.org | #62,281 | Bluesky, Cloudflare, Cloudflare Web Analytics + 18 more | Find emails |
| javdatabase.com | #62,495 | AddToAny, Bluesky, Bootstrap + 12 more | Find emails |
| dailynewsegypt.com | #62,611 | All in One SEO, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| augsburg.edu | #62,717 | AddToAny, Bootstrap, Cloudflare Bot Management + 20 more | Find emails |
| kaldi.co.jp | #62,812 | Amazon CloudFront, Amazon Route 53, Apache + 10 more | Find emails |
| ragtag.jp | #62,837 | Akamai Bot Manager, Akamai edge/CDN, Apache + 11 more | Find emails |
| thekurzweillibrary.com | #62,894 | Cloudflare, Cloudflare Turnstile, Cloudflare edge/CDN + 8 more | Find emails |
| lectulandia.co | #63,119 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 3 more | Find emails |
| compassion.com | #63,150 | ASP.NET, Amazon CloudFront, Cloudflare + 14 more | Find emails |
| secoloditalia.it | #63,223 | Click.io CMP, Cloudflare, Cloudflare Turnstile + 13 more | Find emails |
| legrandcontinent.eu | #63,648 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| gleeden.com | #63,973 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| draft2digital.com | #64,152 | Amazon (ACM), Amazon Route 53, Apache + 10 more | Find emails |
| usagi-online.com | #64,199 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 11 more | Find emails |
| lectulandia.com | #64,599 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 4 more | Find emails |
| jysk.dk | #65,121 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 12 more | Find emails |
| zwierciadlo.pl | #65,185 | Apache, Bootstrap, Cookiebot + 11 more | Find emails |
| dcrainmaker.com | #65,816 | AvantLink, DoubleClick (Google Ads), Google Publisher Tag + 9 more | Find emails |
| vezess.hu | #66,018 | All in One SEO, Amazon Route 53, Microsoft 365 + 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 →