JavaScript Library & Framework
16,473 of the 965,200 top sites in our Tranco top-1M census run Modernizr (1.7%). 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.
Other javascript library & framework
| # | 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 |
|---|---|---|---|
| izi.travel | #37,142 | Amazon CloudFront, Amazon Route 53, Drupal + 8 more | Find emails |
| prweek.com | #37,149 | ASP.NET, Cloudflare, Cloudflare Web Analytics + 5 more | Find emails |
| nic.monster | #37,328 | Amazon (ACM), Google Fonts, Google Tag Manager + 3 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| arbeiterkammer.at |
| #37,473 |
| DigiCert, Font Awesome, Nginx + 5 more |
| Find emails |
| kleekr.com | #37,474 | Bootstrap, Let's Encrypt, Swiper + 1 more | Find emails |
| nic.mom | #37,498 | Google Tag Manager, Let's Encrypt, Mailchimp + 2 more | Find emails |
| nic.beauty | #37,510 | Adobe Fonts (Typekit), Google Tag Manager, Let's Encrypt + 2 more | Find emails |
| sergas.es | #37,513 | ASP.NET, jQuery, jQuery UI | Find emails |
| visenze.com | #37,514 | AOS, Amazon (ACM), Amazon CloudFront + 16 more | Find emails |
| rcuniverse.com | #37,590 | Amazon Advertising, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| unidadeditorial.es | #37,649 | ASP.NET, Adobe Experience Cloud (Launch), Sectigo + 2 more | Find emails |
| eluniversal.com | #37,655 | Bootstrap, Font Awesome, Google Fonts + 6 more | Find emails |
| iac.es | #37,786 | Cookiebot, Drupal, Google Analytics + 2 more | Find emails |
| fsfe.org | #37,835 | Let's Encrypt, jQuery | Find emails |
| azdhs.gov | #37,900 | Amazon Route 53, Bootstrap, Cloudflare Bot Management + 10 more | Find emails |
| advrider.com | #37,903 | Fastly, Font Awesome, Google Cloud DNS + 12 more | Find emails |
| innity.com | #37,907 | Bootstrap, Font Awesome, Google Ads Conversion + 9 more | Find emails |
| wjx.top | #37,988 | DigiCert, Swiper, jQuery | Find emails |
| dresden.de | #38,061 | Fancybox, Let's Encrypt, Swiper + 1 more | Find emails |
| schalke04.de | #38,144 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 8 more | Find emails |
| istruzione.gov.it | #38,368 | Citrix NetScaler, Let's Encrypt, Matomo + 1 more | Find emails |
| riu.edu.ar | #38,487 | Font Awesome, Google Fonts, Let's Encrypt + 4 more | Find emails |
| madmimi.com | #38,538 | GoDaddy, Microsoft 365, Ruby on Rails + 2 more | Find emails |
| pacourts.us | #38,545 | Azure DNS, Coveo, Google Analytics + 6 more | Find emails |
| andrews.edu | #38,553 | Bootstrap, Let's Encrypt, Nginx + 2 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 965,200-domain Tranco top-1M census (run top1m-2026-08-20-full), snapshot August 21, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →