jau.co.jp

Issued by R3

About this certificate

This digital certificate with serial number 03:21:51:fc:0c:1a:9f:b9:2c:00:71:93:c6:ea:f7:01:56:43 was issued on by Let's Encrypt.

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=jau.co.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:21:51:fc:0c:1a:9f:b9:2c:00:71:93:c6:ea:f7:01:56:43
Serial Number (int): 272675152075636917641252108396852448155203
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 29:5a:4b:3a:65:85:9f:65:23:ea:84:c7:06:e4:a5:9e:d2:82:77:53
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ca:c1:3b:bc:fe:ec:e9:6f:d7:e0:45:cc:69:17:f3:0d:1f:70:37:36
Fingerprint (sha256): 5d:34:34:10:6e:26:da:30:b3:4b:25:a2:94:39:8b:cf:b9:1c:0b:c8:86:d9:4f:be:af:84:ff:73:d6:33:c8:3a

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate jau.co.jp

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for jau.co.jp

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

jau.co.jp

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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqlJb/a7XpPunSXihKxhG
fEvLsCpkC9lfClpP4Vqwb4ARonWT4vGlmyfPqnOxqPTCDw5szC9OgdOUQlN6mqDC
0txlF0iLW6yK4Bqp0r8BlOgRNX4ECvk9xYRpI9mKzEpLtrOrY+9g6AKuVJb1AkGI
nDhj9ycdQ+NfHd8S/fjRlTEawJOA4aqvQkWrA06q2qzEZAN95VX8XLLZ0z1+jZSr
KTCvnfbhFWecZOW2Gm9H08G7pRV70rypgS3Fx/cZUx0NQoFSoYD561LJS+J87yik
qk4iHVcN9ocvJfiLLqPONZ8JNhoJb1AgvzlOAIvmoaLKU4BNmZ1+95BpyJjCPufr
HwIDAQAB
-----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 272675152075636917641252108396852448155203
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-10-12 04:30:27 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-10 04:30:26 +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 'jau.co.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 21501124748272602422798791776674042683914045767983341540321328392993851523724404191605024559164383384972782604172448949069334542156924521090078902284844391466886638127125511700340009324640017924344847596249704868463231876045025829689218416489824414868037787116198720283277955166434967306750010361541124518804022634994361452395271396136009570452861179534764622125597328669402902702376508316252518482197329656270828012683021594377348915032615032893597958917781536662989384903987122426311275082891426173594041291884510408356158980828114762591297828357739760842287128074080994245926504593492776933636944720564034254400287
 . . . . . . . . . . . . . . . . . . . . [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)
							295a4b3a65859f6523ea84c706e4a59ed2827753
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'jau.co.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee0075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b225d65c1000004030046304402204a70052b2e032574dca9375b37b4764c87cbc4eb8342c2bc5ddd485ee259c68f02207ed42a85fca6d3d59e9be1e63766120e60cdd5462ba3e04e2ff22e7a8e354de1007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018b225d66550000040300463044022023b74577b9858557bc992847b7dd851e0e5981318e515bc084086d8c61d5f4ca022036702aaec646e2a6a6675a7d91a1c7f86ff6b06c41266fba1c6649abb4720ce2
 . . . . [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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