doctorbook.jp

Issued by GTS CA 1D4

About this certificate

This digital certificate with serial number b7:ac:02:65:82:b4:e2:86:12:7c:42:d4:5a:65:43:98 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): b7:ac:02:65:82:b4:e2:86:12:7c:42:d4:5a:65:43:98
Serial Number (int): 244141846895622943989869221914549240728
Serial Number lenght: 128 bits, 16 octets

SubjectKeyId: b6:4a:e7:91:67:8b:c8:78:77:ac:20:c6:38:15:2c:aa:38:bc:66:08
AuthorityKeyId: 25:e2:18:0e:b2:57:91:94:2a:e5:d4:5d:86:90:83:de:53:b3:b8:92

Fingerprint (sha1): 1b:e5:17:61:a6:1a:78:21:40:98:81:d2:12:ce:50:88:cd:d2:b5:f3
Fingerprint (sha256): 96:87:4c:bc:a3:8f:70:06:66:d5:dd:0c:65:f3:23:d2:a8:71:f6:82:cc:78:19:c1:b3:57:15:26:75:f9:79:dd

Issuing Certificate URL: http://pki.goog/repo/certs/gts1d4.der

Revocation information

OCSP Server: http://ocsp.pki.goog/s/gts1d4/roBTmwqLdvw
CRL Distribution Point: http://crls.pki.goog/gts1d4/ny5WfuHv1Zg.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

Other certificates including the domain name doctorbook.jp

(limited to 100 certificates)

Certificate

The complete raw certificate details for doctorbook.jp in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyfBSUtNJgwgdxFgyDkaM
ClSI5+HkdZ2x/78g0TL6eLYQZ8kTe/GgFx15A1chwMJEvlfVsnBndDPOPe53pGto
lUdf4kYdET1+oQDHDqN8OqIMRhXi8i4TUb7ysDX9CQyvF597lWmMPoe3GwJPLZGc
QBiTyr8W4bB2lX58sTowXmAU+6la2/osOf3l/JSeF43AcN1e43EMM1yDmLVORewR
RiVQ2meBqApPHB8LgdLeEe5RwkdhW5/jM+VxsOVCzP82ndafc4yPl+JiS9XoigHW
jRTSu8Z10eZacLr4Nj0lyeJduWPKJBVfVWzbycYv8r2cr0ZGR+4Bd3BmXvi/hVUQ
AwIDAQAB
-----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 244141846895622943989869221914549240728
 . . . . . . . . [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 2023-10-14 08:20:46 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-12 09:15:00 +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 25492406284274271471312547719227113274172172010767003382231003181515500817105507751541509599047248747642129648960053209420595540115412723211383041775860000354002976465158147799805336861886260746810743079851619265785063653505853786612564747252584279147275679898595525972908605734496464243974693484765279981399970430380694683407280853024371050903131484101505643335131278779027489793411248341872470108840148454060057328949094514840701796598030410639996705269851568805734896545838937433286830472413948361333651166127790591067997171325197651454193769619509746705623244515660366837272109246657464177740380863406694685020163
 . . . . . . . . . . . . . . . . . . . . [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)
							b64ae791678bc87877ac20c638152caa38bc6608
 . . . . . . . . . . . . . . . . [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/roBTmwqLdvw'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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/ny5WfuHv1Zg.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100770076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018b2d7cfb100000040300483046022100a5df875f24830f3cfd450f5de79d6a40f267c8781e47c61282dd71a15ed64713022100eed4113b74195bb44cd71271b7c3e932bb809715d8434537bc5752fe5837edbf00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018b2d7cfb1b0000040300473045022100fa50b073829baa84e05db291775583f80c737eddcf078e5d7b7c4fcf062a1f5d02201f6a0e2fcbb7b85a256083bd671c678fc85439a4d94dec6fa941f56c71411fbd
 . . . . [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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