JavaScript Library & Framework
718 of the 1,000,000 top sites in our Tranco top-1M census run Backbone.js (0.1%). An early, lightweight JavaScript framework providing models, views, and routing for building single-page applications. Detection is homepage-level HTML/header fingerprinting, so a site can run Backbone.js on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | washington.edu | #773 (Tranco) | Find emails |
| 2 | uw.edu | #4,274 (Tranco) | Find emails |
| 3 | europepmc.org | #5,874 (Tranco) | Find emails |
| 4 | borsaitaliana.it |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| adga.org | #412,442 | Bootstrap, Font Awesome, Google Analytics + 11 more | Find emails |
| ibagroup.eu | #412,752 | Apache, Cloudflare Turnstile, DigiCert + 7 more | Find emails |
| swikly.com | #413,329 | Amazon CloudFront, Amazon Route 53, Amazon S3 + 13 more | Find emails |
| #7,679 (Tranco) |
| Find emails |
| 5 | secomtrust.net | #8,308 (Tranco) | Find emails |
| silkstart.com |
| #414,345 |
| Amazon Route 53, Google Analytics, Google Tag Manager + 12 more |
| Find emails |
| hospitalaustral.edu.ar | #420,070 | Apache, Bootstrap, Fancybox + 11 more | Find emails |
| sanko-bazaar.jp | #423,189 | Amazon (ACM), Amazon Route 53, DoubleClick (Google Ads) + 13 more | Find emails |
| bowwowinsurance.com.au | #426,023 | AngularJS, Azure Front Door, Cloudflare + 15 more | Find emails |
| thotismedia.com | #426,634 | All in One SEO, Brevo, Chart.js + 15 more | Find emails |
| fiftygrande.com | #430,405 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 16 more | Find emails |
| focusing.org | #431,177 | AngularJS, Bootstrap, Cloudflare + 13 more | Find emails |
| hoganlovells.tv | #432,373 | AOS, ASP.NET, Bootstrap + 13 more | Find emails |
| elixforms.it | #435,549 | Apache, Cloudflare Turnstile, Google Ads Conversion + 10 more | Find emails |
| elgounahomes.com | #436,961 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 21 more | Find emails |
| vsp.ru | #438,771 | Cloudinary, Google AdSense, Let's Encrypt + 7 more | Find emails |
| kalambagames.com | #440,344 | Amazon Route 53, Divi, Font Awesome + 13 more | Find emails |
| congruex.com | #440,961 | AOS, Apache, Font Awesome + 15 more | Find emails |
| asaplegaldocuments.com | #441,305 | Apache, Bootstrap, Google Analytics + 11 more | Find emails |
| cafedelabourse.com | #445,217 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 10 more | Find emails |
| unipile.com | #445,780 | Crisp, Divi, Google Fonts + 6 more | Find emails |
| autismeurope.org | #445,841 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| astroleague.org | #446,603 | All in One SEO, Apache, Fastmail + 7 more | Find emails |
| azoo.hr | #447,317 | Apache, Font Awesome, Google Analytics + 7 more | Find emails |
| springscs.org | #447,507 | Adobe Fonts (Typekit), AppNexus, Bootstrap + 27 more | Find emails |
| theracingforum.co.uk | #448,856 | Google Analytics, Google Tag Manager, Google Workspace + 7 more | Find emails |
| softwaretesters.net | #448,908 | Daum, Endurance International Group, Font Awesome + 7 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 →