What placeholder.com is built with
Read on 2026-10-28 16:16. 7 technologies spotted.
| Technology | Category | Version | Confidence | Tell |
|---|---|---|---|---|
| Cloudflare | CDN | 100% | headers server: cloudflare | |
| Cloudflare DNS | Hosting | 100% | dns NS: erin.ns.cloudflare.com | |
| Google Workspace | Webmail, Email | 100% | dns MX: alt1.aspmx.l.google.com | |
| HTTP/3 | Miscellaneous | 100% | headers alt-svc: h3=":443"; ma=86400 | |
| Let's Encrypt | SSL/TLS certificate authorities | 100% | certIssuer: Let's Encrypt, YE1 | |
| Open Graph | Miscellaneous | 100% | dom meta[property*='og:']: <meta property="og:title" content="Placeholder — Adam & Dan"> | |
| Priority Hints | Performance | 100% | dom iframe[fetchpriority], img[fetchpriority], script[fetchpriority], link[fetchpriority]: <img src="/assets/adam-handshake.webp" alt="Adam Ljungrell shaking hands" width="800" height="1000" fetchpriority="high" |
Look up any site with GET /v1/lookup?domain=placeholder.com. Start free.