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 |
|---|---|---|---|
| ccresourcecenter.org | #481,857 | All in One SEO, Google Analytics, Google Fonts + 7 more | Find emails |
| duogourmet.com.br | #483,180 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 14 more | Find emails |
| watertreatmentsupply.com | #484,392 | Font Awesome, Google Ads Conversion, Google Analytics + 13 more | Find emails |
| #7,679 (Tranco) |
| Find emails |
| 5 | secomtrust.net | #8,308 (Tranco) | Find emails |
| primarie3.ro | #484,498 | Apache, Bootstrap, Font Awesome + 11 more | Find emails |
| davidsw.com | #486,646 | Bootstrap, ChatGPT Ads Pixel, Cloudflare Bot Management + 11 more | Find emails |
| univ-constantine2.dz | #486,988 | Bootstrap, Font Awesome, Google Analytics + 10 more | Find emails |
| marazziusa.com | #487,828 | Akamai edge/CDN, Akamai mPulse, Azure API Management + 16 more | Find emails |
| velik-shop.com.ua | #488,208 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 13 more | Find emails |
| certifiedangusbeef.com | #488,546 | Adobe Fonts (Typekit), Cloudflare Bot Management, Cloudflare edge/CDN + 19 more | Find emails |
| univ-relizane.dz | #489,750 | Apache, Font Awesome, Google Analytics + 11 more | Find emails |
| virginiahousing.com | #490,454 | Azure API Management, Azure DNS, DigiCert + 11 more | Find emails |
| ilkokul1.com | #490,918 | Font Awesome, Google AdSense, Google Analytics + 9 more | Find emails |
| icon-icon.com | #491,003 | Font Awesome, Google Fonts, Google Workspace + 7 more | Find emails |
| lostmss.co.uk | #492,829 | Baidu Analytics, Google Tag Manager, Let's Encrypt + 4 more | Find emails |
| angusreidusa.com | #494,693 | Amazon (ACM), Amazon Route 53, Apache + 14 more | Find emails |
| rjcollege.edu.in | #496,619 | Bootstrap, Font Awesome, Google Analytics + 13 more | Find emails |
| globalwellnesssummit.com | #498,532 | AddToAny, Bootstrap, Cloudflare + 18 more | Find emails |
| iubat.edu | #500,270 | Font Awesome, Google Fonts, LiteSpeed + 5 more | Find emails |
| torrentflood.com | #500,698 | ASP.NET, Amazon (ACM), Amazon Route 53 + 11 more | Find emails |
| thefloridachannel.org | #502,881 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| icaphila.org | #504,333 | Google Analytics, Google Tag Manager, Let's Encrypt + 8 more | Find emails |
| bubendorff.com | #504,484 | AOS, Apache, Google Tag Manager + 10 more | Find emails |
| fs-play.com | #504,881 | DDoS-Guard, Let's Encrypt, PHP + 3 more | Find emails |
| univassouras.edu.br | #507,818 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| gipfel.net | #510,362 | Google Analytics, Google Fonts, Google Tag Manager + 11 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 →