What ycombinator.com is built with
Read on 2026-10-28 12:32. 23 technologies spotted.
| Technology | Category | Version | Confidence | Tell |
|---|---|---|---|---|
| Amazon Route 53 | Hosting | 100% | dns NS: ns-1914.awsdns-47.co.uk | |
| Amazon Web Services | PaaS | 100% | dns NS: ns-1914.awsdns-47.co.uk | |
| Anthropic | Artificial Intelligence | 100% | dns TXT: anthropic-domain-verification-0qe2ww=yK576oHdDgyTcXgkPfj1KXgGt | |
| Apple iCloud Mail | Webmail | 100% | dns TXT: apple-domain-verification=WG0sP5Alm7N6h1Te | |
| Box | Digital asset management | 100% | dns TXT: dropbox-domain-verification=asc63coma4mv | |
| Cloudflare | CDN | 100% | headers server: cloudflare | |
| Dropbox | Digital asset management | 100% | dns TXT: dropbox-domain-verification=asc63coma4mv | |
| Google Font API | Font scripts | 100% | dom link[href*='fonts.g'] @href: https://fonts.googleapis.com | |
| Google Maps | Maps | 100% | scriptSrc: https://maps.googleapis.com/maps/api/js?key=AIzaSyC0BuJ43Ncbmuro17vVxWJWrOzzAPZ | |
| Google Workspace | Webmail, Email | 100% | dns MX: alt1.aspmx.l.google.com | |
| Gravatar | Miscellaneous | 100% | html: es/2026/10/mp.jpg"/><link rel="preload" as="image" href="//www.gravatar.com/avatar/36ba914c5f191f813e96db0296154469?s=25 | |
| HSTS | Security | 100% | headers strict-transport-security: max-age=63072000; includeSubDomains | |
| Inertia.js | JavaScript frameworks | 100% | headers vary: X-Inertia,Accept-Encoding | |
| Let's Encrypt | SSL/TLS certificate authorities | 100% | certIssuer: Let's Encrypt, YE2 | |
| Mailgun | 100% | dns TXT: .google.com include:mailgun.org a:rsweb1-36.investorflow.com include:_s | ||
| Microsoft 365 | Webmail, Email | 100% | dns TXT: MS=ms37374900 | |
| Open Graph | Miscellaneous | 100% | dom meta[property*='og:']: <meta content="website" property="og:type" > | |
| OpenAI | Artificial Intelligence | 100% | dns TXT: openai-domain-verification=dv-QbhxxK0G0JK0dnyZ4YTsNAfw | |
| RSS | Miscellaneous | 100% | dom link[type*='application'] @type: application/rss+xml | |
| Zoom | Miscellaneous | 100% | dns TXT: ZOOM_verify_2ndw8KZxSRa8PT8NmdyXvw | |
| Ruby | Programming languages | 50% | implied Ruby on Rails | |
| Ruby on Rails | Web frameworks | 50% | meta csrf-param: authenticity_token | |
| Snowplow Analytics | Analytics, IaaS | 50% | scriptSrc: s/ycdc-styles-D4W9cjsP.js |
Look up any site with GET /v1/lookup?domain=ycombinator.com. Start free.