What first.org is built with
Read on 2026-10-28 16:46. 7 technologies spotted.
| Technology | Category | Version | Confidence | Tell |
|---|---|---|---|---|
| HSTS | Security | 100% | headers strict-transport-security: max-age=31557600 | |
| HTTP/3 | Miscellaneous | 100% | headers alt-svc: h3=":443";ma=86400,h3-29=":443";ma=86400,h | |
| Let's Encrypt | SSL/TLS certificate authorities | 100% | certIssuer: Let's Encrypt, YR1 | |
| Nginx | Web servers, Reverse proxies | 100% | headers server: nginx | |
| Open Graph | Miscellaneous | 100% | dom meta[property*='og:']: <meta property="og:title" content="FIRST - Improving Security Together" > | |
| RSS | Miscellaneous | 100% | dom link[type*='application'] @type: application/rss+xml | |
| Varnish | Caching | 100% | headers via: 1.1 varnish |
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