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 |
|---|---|---|---|
| cacrep.org | #517,969 | Cloudflare, Cloudflare Turnstile, Cloudflare Web Analytics + 8 more | Find emails |
| vidma.se | #518,112 | Cloudflare, Cloudflare edge/CDN, Elementor + 10 more | Find emails |
| mrlc.gov | #518,336 | ASP.NET, Bootstrap, Cloudflare + 8 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| letteraemme.it |
| #518,510 |
| AddToAny, CookieYes, Foundation + 12 more |
| Find emails |
| apcointl.org | #518,520 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| midspar.dk | #518,547 | Cloudflare Bot Management, Cloudflare edge/CDN, Cookiebot + 9 more | Find emails |
| warg.org.au | #518,781 | Backbone.js, Google Workspace, Let's Encrypt + 6 more | Find emails |
| smartway-hub.com | #518,962 | Google Tag Manager, Hostinger, Let's Encrypt + 6 more | Find emails |
| petsone.pk | #519,186 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 8 more | Find emails |
| nordsoeposten.dk | #519,425 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 10 more | Find emails |
| scam.fr | #519,696 | Apache, Backbone.js, Bluesky + 6 more | Find emails |
| traderumors.com | #520,177 | Let's Encrypt, Nginx, WordPress + 3 more | Find emails |
| ereads.com | #520,226 | Cloudflare Web Analytics, Consentmanager.net, DoubleClick (Google Ads) + 15 more | Find emails |
| raharja.ac.id | #520,282 | Cloudflare, Font Awesome, Google Analytics + 11 more | Find emails |
| trinettime.com | #520,410 | Amazon (ACM), Cloudflare, Nginx + 2 more | Find emails |
| minskole.no | #520,730 | Adobe Fonts (Typekit), All in One SEO, Bootstrap + 8 more | Find emails |
| parliamentofreligions.org | #520,917 | Apache, CleanTalk, Google Fonts + 8 more | Find emails |
| buzzsharer.com | #521,068 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 10 more | Find emails |
| panel.com | #521,377 | Bunny Fonts, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| italmd.com | #521,564 | All in One SEO, Apache, Bootstrap + 9 more | Find emails |
| imkthis.com | #521,574 | Apache, Bootstrap, Font Awesome + 13 more | Find emails |
| eurecom.eu | #521,658 | Bootstrap, ConsentMo, Drupal + 4 more | Find emails |
| neeche.com.br | #521,756 | Amazon CloudFront, Bootstrap, Font Awesome + 9 more | Find emails |
| sharepresentation.com | #521,809 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 13 more | Find emails |
| waikikitrolley.com | #522,312 | All in One SEO, Breeze, DataTables + 13 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 →