What substack.com is built with
Read on 2026-10-28 12:23. 16 technologies spotted.
| Technology | Category | Version | Confidence | Tell |
|---|---|---|---|---|
| Amazon Web Services | PaaS | 100% | scripts: s3-website-us-east-1.amazonaws.com","enable_website_editor_placeholder_pos | |
| Cloudflare | CDN | 100% | headers server: cloudflare | |
| Cloudflare Bot Management | Security | 100% | cookies __cf_bm: eH3ty2Z0V6ULJUAQP3PPo49RLOesjx00rHdpfVaAg | |
| Cloudflare DNS | Hosting | 100% | dns NS: lee.ns.cloudflare.com | |
| Express | Web frameworks, Web servers | 100% | headers x-powered-by: Express | |
| HSTS | Security | 100% | headers strict-transport-security: max-age=31536000; includeSubDomains; prel | |
| HTTP/3 | Miscellaneous | 100% | headers alt-svc: h3=":443"; ma=86400 | |
| Lucide | Font scripts | 100% | dom svg.lucide: <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" str | |
| Mailgun | 100% | dns TXT: .google.com include:mailgun.org include:mail.zendesk.com ~all | ||
| Meta | Miscellaneous | 100% | dns TXT: facebook-domain-verification=8vbxp2ntmkudc6is3h5r840c9fwo7f | |
| Node.js | Programming languages | 100% | implied Express | |
| Open Graph | Miscellaneous | 100% | dom meta[property*='og:']: <meta data-rh="true" property="og:type" content="article"> | |
| PWA | Miscellaneous | 100% | dom link[rel='manifest']: <link rel="manifest" href="/manifest.json" > | |
| Priority Hints | Performance | 100% | dom iframe[fetchpriority], img[fetchpriority], script[fetchpriority], link[fetchpriority]: <link data-rh="true" rel="preload" as="image" type="image/avif" imagesrcset="https://substackcdn.com/image/fetch/$s_!yPV | |
| Substack | Blogs | 100% | headers x-cluster: substack | |
| Zendesk | Documentation, Issue trackers, Live chat | 100% | dns TXT: mailgun.org include:mail.zendesk.com ~all |
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