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 |
|---|---|---|---|
| retaildetail.be | #483,495 | Google Tag Manager, Let's Encrypt, Microsoft 365 + 5 more | Find emails |
| thyroidpharmacist.com | #483,874 | Amazon Route 53, Google Analytics, Google Fonts + 10 more | Find emails |
| parismou.org | #483,978 | Google Fonts, Let's Encrypt, LiteSpeed + 4 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| lingv.ro | #484,241 | Apache, Font Awesome, Google Fonts + 5 more | Find emails |
| best4discounts.com | #484,312 | Awin, Google Maps, Let's Encrypt + 6 more | Find emails |
| watertreatmentsupply.com | #484,392 | Backbone.js, Font Awesome, Google Ads Conversion + 13 more | Find emails |
| primarie3.ro | #484,498 | Apache, Backbone.js, Bootstrap + 11 more | Find emails |
| makexyz.com | #484,626 | AdRoll, Amazon Route 53, Bootstrap + 15 more | Find emails |
| zipzap.in | #484,675 | AOS, Apache, Bootstrap + 16 more | Find emails |
| crewhu.com | #485,251 | Amazon CloudFront, Amazon Route 53, AngularJS + 26 more | Find emails |
| primepeptides.co | #485,497 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 8 more | Find emails |
| puresweetnesstreatshoppe.com | #485,941 | Bootstrap, Font Awesome, Google Analytics + 11 more | Find emails |
| camereye.ai | #486,027 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 16 more | Find emails |
| mtgcardbuilder.com | #486,032 | Bunny CDN, BunnyCDN, Font Awesome + 9 more | Find emails |
| pameermart.com | #486,105 | All in One SEO, Bootstrap, Google Analytics + 12 more | Find emails |
| peptira.com | #486,211 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| davidsw.com | #486,646 | Backbone.js, Bootstrap, ChatGPT Ads Pixel + 11 more | Find emails |
| univ-constantine2.dz | #486,988 | Backbone.js, Bootstrap, Font Awesome + 10 more | Find emails |
| natex.org | #487,055 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 12 more | Find emails |
| policymagazine.ca | #487,145 | AddToAny, Google Analytics, Google Fonts + 6 more | Find emails |
| lesperlesdubeaulivre.com | #487,215 | Branch, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| cmhdigital.co.za | #487,346 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| streampicks.live | #487,398 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 4 more | Find emails |
| nudist-links.net | #487,487 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 4 more | Find emails |
| canadianpharmacyeasy.com | #487,695 | Elementor, Google Fonts, Let's Encrypt + 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 →