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 |
|---|---|---|---|
| sfmcompile.club | #66,099 | AddThis, BuySellAds, Cloudflare + 27 more | Find emails |
| thebest100hotels.com | #66,375 | Backbone.js, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| waybig.com | #66,480 | ASP.NET, Bootstrap, Cloudflare + 13 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| sns.it | #66,482 | AddToAny, Azure DNS, Bootstrap + 9 more | Find emails |
| swoca.net | #66,494 | Apache, Backbone.js, Google Analytics + 6 more | Find emails |
| pixnio.com | #66,732 | Google Analytics, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| fbk.eu | #66,751 | Cloudflare Bot Management, Cloudflare edge/CDN, ConsentMo + 18 more | Find emails |
| bnpparibas.pl | #66,950 | DigiCert, Dynatrace, Google Tag Manager + 8 more | Find emails |
| gustavus.edu | #67,027 | ConsentMo, Drupal, Font Awesome + 7 more | Find emails |
| newbook.cloud | #67,115 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 8 more | Find emails |
| portaldoholanda.com.br | #67,665 | Cloudflare, Cloudflare edge/CDN, Elementor + 7 more | Find emails |
| stacksports.com | #68,767 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| topgear.nl | #68,861 | Google Tag Manager, Let's Encrypt, LiteSpeed + 5 more | Find emails |
| hyten.com.au | #68,885 | Apache, Google Fonts, Google Maps + 7 more | Find emails |
| dailylasbela.com | #68,977 | Google AdSense, Google Analytics, Google Tag Manager + 7 more | Find emails |
| eforms.com | #69,334 | Adobe Fonts (Typekit), Backbone.js, Cloudflare + 12 more | Find emails |
| aguiabranca.com.br | #69,373 | AddToAny, Backbone.js, Cloudflare edge/CDN + 11 more | Find emails |
| khi.co.jp | #69,826 | Apache, DigiCert, Meta Pixel + 2 more | Find emails |
| pertanian.go.id | #69,931 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| nts-online.net | #69,947 | Backbone.js, Divi, Google Fonts + 8 more | Find emails |
| hsdp.io | #70,075 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 14 more | Find emails |
| homegoods.com | #70,503 | ASP.NET, Akamai Bot Manager, Akamai Edge DNS + 11 more | Find emails |
| svsu.edu | #70,643 | AddThis, Adobe Fonts (Typekit), Apache + 12 more | Find emails |
| mansourlawyers.com.au | #70,670 | Let's Encrypt, Microsoft 365, Nginx + 4 more | Find emails |
| novelship.com | #70,855 | AOS, Bootstrap, Cloudflare + 17 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 →