akibahara.tokyo

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:d7:90:ad:4e:ff:e8:41:0c:b2:bc:93:67:fb:80:6e:5d:43 was issued on by Let's Encrypt.

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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=akibahara.tokyo

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:d7:90:ad:4e:ff:e8:41:0c:b2:bc:93:67:fb:80:6e:5d:43
Serial Number (int): 334689875384335073683765155817439928147267
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c0:b3:72:2a:1b:b2:d3:f3:4f:5f:72:c8:63:70:b7:de:d9:b7:2b:7f
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 20:3a:63:7e:08:fb:2c:60:3c:2c:f9:9b:da:8e:95:a6:1c:94:f2:c6
Fingerprint (sha256): 36:41:14:8b:d7:d9:ab:e0:20:de:1d:8c:9b:00:4b:39:c7:08:48:dd:61:89:e8:41:37:27:7a:a5:50:9e:17:ff

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate akibahara.tokyo

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for akibahara.tokyo

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

akibahara.tokyo
backend.kimo-ota.net
oyoyo-project.com
www8394ui.sakura.ne.jp

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Certificate

The complete raw certificate details for akibahara.tokyo in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoWjdH4anKZ/2NH49UOq2
Oo1mXPEk+LW8O3UVpuibyd++vC5La01qg+02fGvtwKKd/0xs/zYzvg8fvsIrWiz4
Kgvz2XbdGUIG80CxFmUesc+6x1HCz3wXsDqkMxOjzfGMTZEzqENc5R2Xoms2/qsj
3z+gGXcf3FnHNdmSmbQnS7jfstTnonxwfwRDsHuz3kNcA+IYJjK4/Tw1t3XFgMIr
N6ZdegX/ofHCcXuF7pAZiPdDER25hJpiS+Ek/4ilfntKm6p4nNW49jNosNpEm1kz
5ZcxytT035g/ry90p0C1kEX9kCyRhi2Yz/La7PoCqpkv496XIbuyzwp1igny0KkH
BwIDAQAB
-----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 334689875384335073683765155817439928147267
 . . . . . . . . [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 'Let's Encrypt'
 . . . . . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-07-25 10:03:49 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-23 10:03:49 +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 'akibahara.tokyo'
 . . . . . . . . [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 20376077347992134253767975989747031892010396441108296549591627817485934175518327416734991969341561804351764760433300203660149410972762313136777299926156979334417125006649416470121507932259134719648276555812123990345795243756606894821759739573372969373715380937212534339248197927423581065311480439840611615500691326496635271166064460389851856063668540974385985376080119812377846425521151145781086270734610585361314317844761633191423718727961406138067587047492001566402674838909517903216283009548305828070988733916623249122381911587584203293285826296410973929236636690218822164698222229644352824031605886573274064291591
 . . . . . . . . . . . . . . . . . . . . [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 (22 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:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth)
 . . . . . . . . . . . . . . . . [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)
							c0b3722a1bb2d3f34f5f72c86370b7ded9b72b7f
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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.int-x3.letsencrypt.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://cert.int-x3.letsencrypt.org/'
 . . . . . . . . . . . . . . . . [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 (84 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'akibahara.tokyo'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'backend.kimo-ota.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'oyoyo-project.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www8394ui.sakura.ne.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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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)
							00f10077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016c28cd2985000004030048304602210098fc1246b4aa87363b94c2a4afbc78ae083cf6c99c238d1391c0b8cb3323b1e0022100ac1287917bfd9d407547a5ca4a38ffe2818028d40ab98b4131fb2a08440f53ac00760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016c28cd27e60000040300473045022100e15960355d805e5ba3863d636278d08b820129b08a304afd03662622ac9261520220124a2ea25289331bff149314238522863e61f3d269cfe270bb647452036818df
 . . . . [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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