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 |
|---|---|---|---|
| singular.live | #168,158 | AWS Lambda, Bootstrap, Cloudflare + 21 more | Find emails |
| atletismorfea.es | #168,436 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| electomania.es | #168,586 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| fujiokadistribuidor.com.br | #168,640 | Amazon CloudFront, Bootstrap, Cloudflare + 13 more | Find emails |
| pedrettisbakery.com | #168,714 | Google Fonts, Let's Encrypt, Nginx + 3 more | Find emails |
| aryaka.com | #168,745 | Bizible, Bootstrap, Cloudflare Bot Management + 16 more | Find emails |
| ultrarunning.com | #168,752 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 9 more | Find emails |
| ethnicelebs.com | #168,785 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 more | Find emails |
| genuitec.com | #169,006 | Divi, DoubleClick (Google Ads), Fancybox + 21 more | Find emails |
| accredia.it | #169,595 | Apache, Cookiebot, Plausible + 4 more | Find emails |
| ulpressa.ru | #169,739 | Fancybox, Google Analytics, Let's Encrypt + 6 more | Find emails |
| phoneplacekenya.com | #169,954 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 15 more | Find emails |
| iranian.com | #169,974 | AddThis, Apache, Font Awesome + 9 more | Find emails |
| yestostrength.com | #170,298 | Apache, Bootstrap, Fancybox + 7 more | Find emails |
| fashionweekonline.com | #170,334 | Google Fonts, OptinMonster, Stripe + 8 more | Find emails |
| hurstpublishers.com | #170,430 | Backbone.js, Bootstrap, Cloudflare + 14 more | Find emails |
| bookingblog.com | #170,438 | Google Analytics, LinkedIn Widgets, LiteSpeed + 8 more | Find emails |
| itrevolution.com | #170,522 | Bootstrap, Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| kaizen.com | #170,888 | Azure DNS, Azure Front Door, Backbone.js + 8 more | Find emails |
| ehb.be | #170,897 | Ahrefs Analytics, Bootstrap, Drupal + 7 more | Find emails |
| echtsexgeschichten.net | #171,044 | Cloudflare, Cloudflare Turnstile, Cloudflare edge/CDN + 14 more | Find emails |
| proteusthemes.com | #171,151 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| tpos.co.uk | #171,165 | Astro, Azure API Management, Bluesky + 14 more | Find emails |
| yaoxiaotong.cn | #171,270 | ASP.NET, Bootstrap, Font Awesome + 2 more | Find emails |
| kremen.today | #171,407 | Backbone.js, Cloudflare, Cloudflare Web Analytics + 10 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 →