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HTTPヘッダ情報チェック

URL
HTTP/1.1 521
DateFri, 17 May 2024 12:20:27 GMT
Content-Typetext/plain; charset=UTF-8
Content-Length15
Connectionkeep-alive
Report-To{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=R8oEYL9k6Qq0aMOlm2W8%2FrGUbLtVak4M3JAx2RPg0QGouXX6kqZ%2B0Nj%2FS1%2BZQ46xetJ14sfYUVxm7rxghaCLsMI6iYr1BiWW99AkJ2%2Byl9MDm4S3okOdJF7F59ANetuETA%3D%3D"}],"group":"cf-nel","max_age":604800}
NEL{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
X-Frame-OptionsSAMEORIGIN
Referrer-Policysame-origin
Cache-Controlprivate, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
ExpiresThu, 01 Jan 1970 00:00:01 GMT
Servercloudflare
CF-RAY88538fc73c06e393-NRT
alt-svch3=":443"; ma=86400