JavaScript Library & Framework
27,702 of the 1,000,000 top sites in our Tranco top-1M census run Modernizr (2.8%). A JavaScript library that detects which HTML5/CSS3 features a browser supports, enabling progressive enhancement. Detection is homepage-level HTML/header fingerprinting, so a site can run Modernizr on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | mit.edu | #225 (Tranco) | Find emails |
| 2 | npr.org | #466 (Tranco) | Find emails |
| 3 | uk.com | #532 (Tranco) | Find emails |
| 4 | cornell.edu |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| directoryio.com | #177,442 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| ouhealth.com | #177,495 | Adobe Fonts (Typekit), Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| tetrabookmarks.com | #177,547 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| aec.edu.in | #177,556 | ASP.NET, Apache, Bootstrap + 11 more | Find emails |
| goldseiten.de | #177,654 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 4 more | Find emails |
| innovativeinternet.net | #177,748 | Apache, Bootstrap, Font Awesome + 5 more | Find emails |
| axcelerate.com | #177,817 | AWS Lambda, Amazon Route 53, Cloudflare edge/CDN + 10 more | Find emails |
| uaig.net | #177,836 | Bootstrap, DigiCert, Fancybox + 9 more | Find emails |
| kingbookmark.com | #177,920 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| stoke.gov.uk | #177,950 | Amazon (ACM), Apache, Civic Cookie Control + 5 more | Find emails |
| dataproject.com | #177,977 | AOS, ASP.NET, Azure API Management + 9 more | Find emails |
| lutskrada.gov.ua | #177,999 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 4 more | Find emails |
| agriculturejournals.cz | #178,002 | Apache, Google Fonts, Let's Encrypt + 2 more | Find emails |
| psico-smart.com | #178,125 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 14 more | Find emails |
| ietab.net | #178,134 | Amazon Route 53, Apache, Font Awesome + 10 more | Find emails |
| oct-tuning.cn | #178,185 | ASP.NET, Baidu Analytics, CNZZ + 2 more | Find emails |
| hcidhaka.gov.in | #178,191 | Font Awesome, Google Analytics, Google Fonts + 4 more | Find emails |
| socialioapp.com | #178,319 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| yurakirari.com | #178,328 | Adobe Analytics, Apache, Google Analytics + 8 more | Find emails |
| my-social-box.com | #178,423 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| apu.ac.jp | #178,459 | Bootstrap, Font Awesome, Google Fonts + 7 more | Find emails |
| gobiernobogota.gov.co | #178,480 | AddToAny, Bootstrap, Drupal + 8 more | Find emails |
| filmtoolz.ru | #178,531 | Fancybox, Font Awesome, Nginx + 5 more | Find emails |
| 41nbc.com | #178,549 | Bootstrap, Empower Local, Font Awesome + 13 more | Find emails |
| iwanttobookmark.com | #178,550 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
Showing the first 10,000matches — add a filter to narrow.
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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →