Wed Sep 23 19:15:56 2026

 SSL certificate for https://www.shugaku.metro.tokyo.lg.jp/ expires in 114 days


Server certificate:
	subject:/C=JP/ST=Tokyo/L=Shinjuku-ku/O=Tokyo Metropolitan Government/CN=www.shugaku.metro.tokyo.lg.jp
	start date: 2026-01-08 09:39:43 GMT
	expire date:2027-01-15 14:59:59 GMT
	key size:2048
	issuer:/C=JP/O=SECOM Trust Systems CO.,LTD./CN=SECOM Passport for Web SR 3.0 CA
	signature algorithm: sha256WithRSAEncryption

Cipher used: TLS_AES_256_GCM_SHA384 (256 bits)