curl -i https://simonw.github.io/
HTTP/2 200 server: GitHub.com content-type: text/html; charset=utf-8 permissions-policy: interest-cohort=() last-modified: Wed, 16 Nov 2022 21:38:29 GMT access-control-allow-origin: * etag: "63755855-299" expires: Wed, 23 Apr 2025 18:20:50 GMT cache-control: max-age=600 x-proxy-cache: MISS x-github-request-id: 3D02:22250F:11BEDCA:123BE7A:68092D2A accept-ranges: bytes age: 0 date: Wed, 23 Apr 2025 18:10:50 GMT via: 1.1 varnish x-served-by: cache-pao-kpao1770029-PAO x-cache: MISS x-cache-hits: 0 x-timer: S1745431851.518299,VS0,VE110 vary: Accept-Encoding x-fastly-request-id: 0df3187f050552dfde088fae8a6a83e0dde187f5 content-length: 665