doctorbook.jp
Issued by GTS CA 1D4
About this certificate
This digital certificate with serial number 3f:03:71:37:2f:1b:9f:4b:10:8d:2c:ea:6c:d3:6b:b6 was issued on by Google Trust Services LLC.
With 4 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.
We have idenified some issues with this certificate:
- DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
- Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
- Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)
Certificate Subject
CN=doctorbook.jp
Google Trust Services LLC
Organization:
Google Trust Services LLC
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 3f:03:71:37:2f:1b:9f:4b:10:8d:2c:ea:6c:d3:6b:b6Serial Number (int): 83759236909438644098823963852231895990
Serial Number lenght: 126 bits, 16 octets
SubjectKeyId: cf:c3:80:6b:f2:0b:ba:ef:db:cf:65:d3:54:b1:2c:1d:70:61:7f:87
AuthorityKeyId: 25:e2:18:0e:b2:57:91:94:2a:e5:d4:5d:86:90:83:de:53:b3:b8:92
Fingerprint (sha1): 24:9b:9f:ae:aa:8f:87:8c:2e:b1:72:3b:f5:f7:76:63:2a:50:8b:e7
Fingerprint (sha256): 9e:9a:f5:ef:48:bb:91:ce:8f:1e:fe:51:a2:89:fd:12:b0:08:dc:6b:80:42:17:d1:cc:e5:38:04:5c:c5:85:16
Issuing Certificate URL: http://pki.goog/repo/certs/gts1d4.der
Revocation information
OCSP Server: http://ocsp.pki.goog/s/gts1d4/zuW5h-Fd5vUCRL Distribution Point: http://crls.pki.goog/gts1d4/cfJKxP8zZOE.crl
Check the revocation status for certificate doctorbook.jp
4
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for doctorbook.jp
Public Key Algorithm
RSA
Key Size
2048
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Extensions
10 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
doctorbook.jp
admin.doctorbook.jp
academy.doctorbook.jp
admin.academy.doctorbook.jp
admin.doctorbook.jp
academy.doctorbook.jp
admin.academy.doctorbook.jp
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Certificate
The complete raw certificate details for doctorbook.jp in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFqTCCBJGgAwIBAgIQPwNxNy8bn0sQjSzqbNNrtjANBgkqhkiG9w0BAQsFADBG MQswCQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNlcnZpY2VzIExM QzETMBEGA1UEAxMKR1RTIENBIDFENDAeFw0yNDAyMTAwMjQ2MTdaFw0yNDA1MTAw MzQxMTJaMBgxFjAUBgNVBAMTDWRvY3RvcmJvb2suanAwggEiMA0GCSqGSIb3DQEB AQUAA4IBDwAwggEKAoIBAQCx9aeJchX1lpURcpMzbgeETsIs1bt6J22P0rdYTGQn BeCjn2hA5JzapmCvSE/VWzs8AeH8USQm3IwCqN7M2/z1FLj5HmW0mqByILUr43uG mrbaxoKcoathy+39ffgvNomAFCpZ4tCiH6weQIMWWme9jcvVspsr2crUO5XQzR2K RUs9VPejhplJLYXxw6uddekykqXDDTWUR5JI3nLvALsIUTqSuqE0Pm/8xcyZ4GC5 CMsqroFDS6VnSPK3KMn4pf2T/3QxzzHSkioM7Rzv5FfNAMOE/jK2/2ybHrg7zJOP 9RTbuxzwP6/xbMRRcLDFFEJ8jEM4UEMYh+cjpMOWZwt9AgMBAAGjggK/MIICuzAO BgNVHQ8BAf8EBAMCBaAwEwYDVR0lBAwwCgYIKwYBBQUHAwEwDAYDVR0TAQH/BAIw ADAdBgNVHQ4EFgQUz8OAa/ILuu/bz2XTVLEsHXBhf4cwHwYDVR0jBBgwFoAUJeIY DrJXkZQq5dRdhpCD3lOzuJIweAYIKwYBBQUHAQEEbDBqMDUGCCsGAQUFBzABhilo dHRwOi8vb2NzcC5wa2kuZ29vZy9zL2d0czFkNC96dVc1aC1GZDV2VTAxBggrBgEF BQcwAoYlaHR0cDovL3BraS5nb29nL3JlcG8vY2VydHMvZ3RzMWQ0LmRlcjBhBgNV HREEWjBYgg1kb2N0b3Jib29rLmpwghNhZG1pbi5kb2N0b3Jib29rLmpwghVhY2Fk ZW15LmRvY3RvcmJvb2suanCCG2FkbWluLmFjYWRlbXkuZG9jdG9yYm9vay5qcDAh BgNVHSAEGjAYMAgGBmeBDAECATAMBgorBgEEAdZ5AgUDMDwGA1UdHwQ1MDMwMaAv oC2GK2h0dHA6Ly9jcmxzLnBraS5nb29nL2d0czFkNC9jZkpLeFA4elpPRS5jcmww ggEGBgorBgEEAdZ5AgQCBIH3BIH0APIAdwDatr9rP7W2Ip+bwrtca+hwkXFsu1GE hTS9pD0wSNf7qwAAAY2RH4XNAAAEAwBIMEYCIQCLiuB/CJAGSf8cs9lvD0zdg6t0 X+k8qEZseTS4uQNDrgIhALrTpeBMRAEOiCXYqbXe0BE6oZrKHe29VW4ac2L1poRk AHcA7s3QZNXbGs7FXLedtM0TojKHRny87N7DUUhZRnEftZsAAAGNkR+EwQAABAMA SDBGAiEA08ugj7yGoJLYJ1tda50Gkwe6pRauCG6WyvxE4ycNdyECIQDnMqlToST+ fpMMH5XdqTdYbC16ZopOFsvliY+8bgmEvTANBgkqhkiG9w0BAQsFAAOCAQEAhWpD FoFNIQ51DJHnmBG7ucutkws44NbjW/ByfKLqjgZ5Bj3miR0f73Dr/RPkwmt/rcA8 M7lRFn0k7pzXGRzJxqq/reI89NXvxFc5w0CMEPf2px/2n+uElFOnj3MxtJKkUPtR pJ4J4jNaezTrzUUIz0wxYokuCGvKXVX47MaL8ZE9qHqELqKgTxdB6H7dz8Gxfc9j /wVSlNSroXvWqDtqKbyzGeHxbT4iKjsMWHHHlzOJMa47gTaOXSEr9dZQXqOiH560 x1aUoHFPHTD1z2RNGFlVcxv3ygGicGIdoqVdlhBbF+/+bdCGlHZoTIoCaeDZY5w+ r6HLiQRUthxeVi1LLQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsfWniXIV9ZaVEXKTM24H hE7CLNW7eidtj9K3WExkJwXgo59oQOSc2qZgr0hP1Vs7PAHh/FEkJtyMAqjezNv8 9RS4+R5ltJqgciC1K+N7hpq22saCnKGrYcvt/X34LzaJgBQqWeLQoh+sHkCDFlpn vY3L1bKbK9nK1DuV0M0dikVLPVT3o4aZSS2F8cOrnXXpMpKlww01lEeSSN5y7wC7 CFE6krqhND5v/MXMmeBguQjLKq6BQ0ulZ0jytyjJ+KX9k/90Mc8x0pIqDO0c7+RX zQDDhP4ytv9smx64O8yTj/UU27sc8D+v8WzEUXCwxRRCfIxDOFBDGIfnI6TDlmcL fQIDAQAB -----END PUBLIC KEY-----
ASN.1 decoded
[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 83759236909438644098823963852231895990 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Google Trust Services LLC' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'GTS CA 1D4' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-10 02:46:17 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-10 03:41:12 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'doctorbook.jp' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 22465316698678890868666022998164524218493168482332282004050788795988887463267774846264879782386270578255180674898522109996653102706184927244598388447324288538881774000825260999316662098877391990830085648720543550276371627772774735009629469950101941635955537462367050369037904093329871207450079677092836717878657263867870588305138714333620631232598660285082356678832396146351341949303422944489798366056594663543317266314469909292545732500460455362766212117255795856682430985405830330274548053226859973768016418573505101838511297006147926224839929509268717747979618460636181916332103876426823089309338055905603075115901 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits) 05a0 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (12 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes) cfc3806bf20bbaefdbcf65d354b12c1d70617f87 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 25e2180eb25791942ae5d45d869083de53b3b892 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (108 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.pki.goog/s/gts1d4/zuW5h-Fd5vU' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://pki.goog/repo/certs/gts1d4.der' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (90 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'doctorbook.jp' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'admin.doctorbook.jp' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'academy.doctorbook.jp' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'admin.academy.doctorbook.jp' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (26 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.5.3 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31 (cRLDistributionPoints) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (53 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crls.pki.goog/gts1d4/cfJKxP8zZOE.crl' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (247 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) 00f2007700dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018d911f85cd00000403004830460221008b8ae07f08900649ff1cb3d96f0f4cdd83ab745fe93ca8466c7934b8b90343ae022100bad3a5e04c44010e8825d8a9b5ded0113aa19aca1dedbd556e1a7362f5a68464007700eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018d911f84c10000040300483046022100d3cba08fbc86a092d8275b5d6b9d069307baa516ae086e96cafc44e3270d7721022100e732a953a124fe7e930c1f95dda937586c2d7a668a4e16cbe5898fbc6e0984bd . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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