JavaScript Library & Framework
47,495 of the 1,000,000 top sites in our Tranco top-1M census run React (4.7%). Meta's component-based UI library, the most widely used modern JS framework. Detection is homepage-level HTML/header fingerprinting, so a site can run React on other pages without it showing here.
Other javascript library & framework
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | amazonaws.com | #9 (Tranco) | Find emails |
| 2 | fastly.net | #35 (Tranco) | Find emails |
| 3 | x.com | #54 (Tranco) | Find emails |
| 4 | yahoo.com |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| leetcode.cn | #40,365 | Alibaba Cloud DNS, Let's Encrypt, Next.js | Find emails |
| boulevard.io | #40,409 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 7 more | Find emails |
| flomni.com | #40,414 | Cloudflare, Google Tag Manager, Let's Encrypt + 2 more | Find emails |
| #56 (Tranco) |
| Find emails |
| 5 | vimeo.com | #71 (Tranco) | Find emails |
| assemblyai.com |
| #40,415 |
| Amazon CloudFront, Amazon Route 53, Atlassian Cloud + 14 more |
| Find emails |
| enhancv.com | #40,420 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| defillama.com | #40,423 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 3 more | Find emails |
| one.co.il | #40,430 | Amazon (ACM), Amazon CloudFront, DoubleClick (Google Ads) + 9 more | Find emails |
| shift4.com | #40,454 | Amazon CloudFront, Amazon Route 53, Amazon S3 + 11 more | Find emails |
| lezhin.com | #40,474 | Amazon (ACM), Amazon Route 53, Google Tag Manager + 3 more | Find emails |
| ops.co | #40,483 | Google Analytics, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| sextpanther.com | #40,490 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 7 more | Find emails |
| soundcore.com | #40,505 | Judge.me, Let's Encrypt, Netlify + 3 more | Find emails |
| zalando.ro | #40,513 | Akamai Bot Manager, Akamai edge/CDN, Amazon Route 53 + 2 more | Find emails |
| uco.edu | #40,514 | Cloudflare edge/CDN, Google Fonts, Google Hosted Libraries + 5 more | Find emails |
| platacard.mx | #40,525 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 2 more | Find emails |
| movistar.com.ar | #40,553 | AB Tasty, DigiCert, Google Analytics + 11 more | Find emails |
| shinservice.ru | #40,589 | Google Analytics, Let's Encrypt, Next.js + 5 more | Find emails |
| gitconnected.com | #40,613 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 4 more | Find emails |
| sharp.com | #40,629 | Amazon (ACM), Amazon CloudFront, Contentful + 5 more | Find emails |
| gocertify.me | #40,646 | AWS Lambda, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| intermountainhealthcare.org | #40,655 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 2 more | Find emails |
| ii.co.uk | #40,662 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 6 more | Find emails |
| ignitioncasino.eu | #40,668 | Google Tag Manager, Next.js, PerimeterX (HUMAN) | Find emails |
| wifimap.io | #40,671 | Amazon (ACM), Amazon Route 53, Google Fonts + 3 more | Find emails |
| td.org | #40,679 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Fonts + 7 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 →