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 |
|---|---|---|---|
| cleverence.ru | #37,711 | Bitrix, Google Fonts, JivoChat + 9 more | Find emails |
| mothercare.co.id | #37,729 | Cloudflare, Fastly, Google Ads Conversion + 9 more | Find emails |
| pointstreak.com | #37,772 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| #1,036 (Tranco) |
| Find emails |
| 5 | alphonso.tv | #1,063 (Tranco) | Find emails |
| buyandsellhair.com | #38,044 | AddToAny, Cloudflare, Cloudflare Turnstile + 16 more | Find emails |
| iodonna.it | #38,320 | DoubleClick (Google Ads), Fastly, Google Fonts + 17 more | Find emails |
| lloyds.com | #38,430 | AOS, Azure API Management, Bootstrap + 16 more | Find emails |
| ocso.com | #38,587 | Backbone.js, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| linux.org.au | #38,915 | Apache, Bluesky, CleanTalk + 10 more | Find emails |
| e2open.com | #39,007 | Bizible, Cloudflare Bot Management, Cloudflare edge/CDN + 16 more | Find emails |
| gapminder.org | #39,071 | All in One SEO, Backbone.js, Cloudflare + 17 more | Find emails |
| dteenergy.com | #39,523 | Backbone.js, Bootstrap, Dynatrace + 13 more | Find emails |
| volnation.com | #39,685 | Apache, ConsentMo, Google Analytics + 8 more | Find emails |
| uams.edu | #40,067 | ASP.NET, Axios, Backbone.js + 8 more | Find emails |
| chatplus.jp | #40,685 | Amazon Route 53, Bootstrap, Font Awesome + 9 more | Find emails |
| womenshistory.org | #40,760 | AddThis, Bootstrap, Cloudflare + 14 more | Find emails |
| sumdu.edu.ua | #41,699 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 12 more | Find emails |
| tdl.org | #41,829 | Amazon Route 53, Backbone.js, Fastly + 12 more | Find emails |
| locallogic.co | #43,020 | AOS, Amazon (ACM), Amazon CloudFront + 18 more | Find emails |
| freifunk.net | #43,113 | Apache, Bluesky, Font Awesome + 4 more | Find emails |
| investmentnews.com | #43,128 | ASP.NET, Algolia, Azure API Management + 16 more | Find emails |
| minlib.net | #43,259 | Azure DNS, Bootstrap, Drupal + 9 more | Find emails |
| ilc.edu.tw | #43,388 | Apache, Font Awesome, Google Fonts + 8 more | Find emails |
| blr.com | #43,844 | ASP.NET, Amazon (ACM), Google Ads Conversion + 11 more | Find emails |
| pontiac.media | #44,030 | Amazon (ACM), Amazon Route 53, Apache + 13 more | Find emails |
| acrelec.com | #44,545 | Apache, Backbone.js, GSAP + 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 →