HTTP/2 200 date: Mon, 29 Sep 2025 21:54:58 GMT content-type: text/html; charset=utf-8 server: nginx/1.29.1 vary: Accept-Encoding vary: Cookie, Accept-Language content-language: ja x-frame-options: DENY strict-transport-security: max-age=31536000; includeSubDomains x-content-type-options: nosniff referrer-policy: strict-origin-when-cross-origin cross-origin-opener-policy: same-origin-allow-popups set-cookie: connpass-csrftoken=1Mu0Esmj9MrKBw2IdKiXg0jLvkvgkSG7; Domain=.connpass.com; expires=Mon, 28 Sep 2026 21:54:58 GMT; Max-Age=31449600; Path=/; SameSite=Lax; Secure content-encoding: gzip