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 |
|---|---|---|---|
| jees.or.jp | #557,087 | Google Analytics, Google Fonts, Google Tag Manager + 5 more | Find emails |
| iafas.gov.ar | #557,262 | Apache, Bootstrap, Cloudflare + 13 more | Find emails |
| uniprof-med.ru | #559,110 | Fancybox, Google Fonts, Let's Encrypt + 13 more | Find emails |
| #7,679 (Tranco) |
| Find emails |
| 5 | secomtrust.net | #8,308 (Tranco) | Find emails |
| graiul.ro | #560,162 | Bootstrap, Font Awesome, Google Analytics + 10 more | Find emails |
| forma2plus.com | #561,799 | Apache, Font Awesome, Let's Encrypt + 6 more | Find emails |
| lochting.com | #562,395 | Apache, Cookie-Script, Font Awesome + 8 more | Find emails |
| behomecasa.it | #564,554 | Bootstrap, Feedaty, Font Awesome + 16 more | Find emails |
| kyb-europe.com | #565,331 | Font Awesome, Google Maps, Google Tag Manager + 12 more | Find emails |
| theproaudiofiles.com | #565,533 | Adobe Fonts, Adobe Fonts (Typekit), Cloudflare + 15 more | Find emails |
| nitto-kohki.co.jp | #566,763 | Amazon (ACM), Apache, Google Analytics + 7 more | Find emails |
| grayarea.org | #567,492 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 16 more | Find emails |
| foodmeanderings.com | #568,708 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 6 more | Find emails |
| wealthtender.com | #569,920 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| cadwalader.com | #570,433 | AOS, ASP.NET, Amazon Route 53 + 14 more | Find emails |
| sapphirefoxx.com | #571,881 | CleanTalk, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| americana.edu.py | #573,640 | AOS, Apache, Azure DNS + 14 more | Find emails |
| kjxb.org | #574,663 | Cloudflare Bot Management, Cloudflare edge/CDN, Font Awesome + 9 more | Find emails |
| danskinternet.dk | #575,050 | Apache, Elementor, Font Awesome + 9 more | Find emails |
| yescall.com | #578,925 | Apache, Google Analytics, Google Tag Manager + 8 more | Find emails |
| hillsdalecollegian.com | #580,314 | Cloudflare, Google Tag Manager, Let's Encrypt + 9 more | Find emails |
| emaxindia.in | #580,592 | Font Awesome, Google Fonts, Modernizr + 7 more | Find emails |
| medicareschool.com | #582,212 | Cloudflare Turnstile, Elementor, Google Tag Manager + 8 more | Find emails |
| pohde.fi | #586,232 | Adobe Fonts (Typekit), Cludo, Cookiebot + 14 more | Find emails |
| globaldrugsurvey.com | #586,385 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| connectinternationalone.co.jp | #587,595 | Google Analytics, Google Site Kit, Google Tag Manager + 9 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 →