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 |
|---|---|---|---|
| budsartbooks.com | #432,690 | Apache, Font Awesome, Google Analytics + 5 more | Find emails |
| goodreader.com | #432,749 | Apache, Bootstrap, Font Awesome + 3 more | Find emails |
| fvsa.com | #432,810 | Apache, Azure DNS, Bootstrap + 12 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| myhumandesign.com |
| #432,948 |
| AOS, Cloudflare, Cloudflare edge/CDN + 11 more |
| Find emails |
| autoplay.com.pk | #433,256 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| paprec.com | #433,478 | Fancybox, Font Awesome, Google Fonts + 11 more | Find emails |
| shadoo.ae | #433,658 | All in One SEO, Bootstrap, Font Awesome + 12 more | Find emails |
| summitpolymers.com | #433,788 | Divi, Google Fonts, Google Maps + 7 more | Find emails |
| prabhatmedia.com | #433,856 | Apache, Google Analytics, Google Fonts + 10 more | Find emails |
| 30secondfeedback.com | #434,003 | Bootstrap, Cloudflare, Font Awesome + 11 more | Find emails |
| lightsailed.com | #434,451 | Adobe Fonts (Typekit), Bootstrap, Cloudflare + 32 more | Find emails |
| linkairways.com | #434,512 | ASP.NET, Amazon Route 53, Bootstrap + 9 more | Find emails |
| aaww.org | #434,899 | AddToAny, Google Tag Manager, Gravatar + 8 more | Find emails |
| serverbasket.com | #434,979 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| imaginesports.com | #435,096 | Amazon (ACM), Amazon Route 53, Apache + 4 more | Find emails |
| comey.com | #435,391 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 15 more | Find emails |
| elixforms.it | #435,549 | Apache, Backbone.js, Cloudflare Turnstile + 10 more | Find emails |
| visaextra.by | #435,603 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 4 more | Find emails |
| hentaiarena.com | #435,621 | Cloudflare, Cloudflare edge/CDN, ExoClick + 11 more | Find emails |
| lie-nielsen.com | #435,727 | Amazon Route 53, Bootstrap, Font Awesome + 13 more | Find emails |
| nationalbatterysupply.com | #435,982 | All in One SEO, Bootstrap, Font Awesome + 12 more | Find emails |
| rxsport.co.uk | #435,992 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 8 more | Find emails |
| effie.org | #436,033 | Adobe Fonts (Typekit), Cloudflare, GSAP + 12 more | Find emails |
| abarrotero.com | #436,073 | Bootstrap, Google Ads Conversion, Google Analytics + 9 more | Find emails |
| sargasso.nl | #436,135 | Bluesky, Bootstrap, Cloudflare + 8 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 →