k-partners.co.jp

Issued by R3

About this certificate

This digital certificate with serial number 04:31:77:24:aa:f9:31:4b:8b:ac:d4:e5:df:c2:07:9f:d8:66 was issued on by Let's Encrypt.

With 2 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=k-partners.co.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:31:77:24:aa:f9:31:4b:8b:ac:d4:e5:df:c2:07:9f:d8:66
Serial Number (int): 365281348228104984720221765062998162921574
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 29:07:ea:29:bf:a2:62:71:01:59:5a:ba:d4:18:c8:ca:e4:c8:45:80
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 0d:c9:27:2c:e6:4b:3b:e0:07:55:8e:5d:74:7f:20:12:08:42:2f:a1
Fingerprint (sha256): 2f:7d:9e:d2:77:36:9c:54:91:e9:90:1a:f1:e4:98:68:b6:c5:e1:f1:21:67:33:85:39:ef:23:dd:3e:bd:0d:52

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

Revocation information

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

Check the revocation status for certificate k-partners.co.jp

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for k-partners.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

k-partners.co.jp
www.k-partners.co.jp

Other certificates including the domain name k-partners.co.jp

(limited to 100 certificates)
www.k-partners.co.jp
www.k-partners.co.jp
k-partners.co.jp
k-partners.co.jp
www.k-partners.co.jp
k-partners.co.jp
www.k-partners.co.jp
k-partners.co.jp
www.k-partners.co.jp
www.k-partners.co.jp
www.k-partners.co.jp
k-partners.co.jp
k-partners.co.jp
www.k-partners.co.jp
www.k-partners.co.jp
k-partners.co.jp
k-partners.co.jp
www.k-partners.co.jp
www.k-partners.co.jp
www.k-partners.co.jp
www.k-partners.co.jp
www.k-partners.co.jp

Certificate

The complete raw certificate details for k-partners.co.jp in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFAzCCA+ugAwIBAgISBDF3JKr5MUuLrNTl38IHn9hmMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzEyMTQwNDI1MTRaFw0yNDAzMTMwNDI1MTNaMBsxGTAXBgNVBAMT
EGstcGFydG5lcnMuY28uanAwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIB
AQDXZA+eBfimUWTTEP2/9KMW+QJ1cv/wfGN6a5o0pshaHSMwz2Kb1OuG6acEwLu1
qSi2npK/h3M3QmJbfuR4jmmbfw9c2Z/IkTs+oV4wwB53TAJiUhv1PKx954E5t/kQ
RL936E2bWbOr8Ot6Q7QaP9s8dJi8vztOOl3YUSRNeKw1YbDbaBn+TLOUV5QIgeVr
zuJNS7pnmIE5/sX5Wqo0vIzULkRmlDlVphPpK73BSfN8qYeJtqOX4eKYN1fLvnXo
RaJmBgTc7RKL3o8fw0bAWG0F3pufSHnYXiOaOn04Iye8CrWtmXdH+Q3vz9NbNmYm
47yRp6/vyUahJgvYgU6W03VxAgMBAAGjggIoMIICJDAOBgNVHQ8BAf8EBAMCBaAw
HQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYD
VR0OBBYEFCkH6im/omJxAVlautQYyMrkyEWAMB8GA1UdIwQYMBaAFBQusxe3WFbL
rlAJQOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDov
L3IzLm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5v
cmcvMDEGA1UdEQQqMCiCEGstcGFydG5lcnMuY28uanCCFHd3dy5rLXBhcnRuZXJz
LmNvLmpwMBMGA1UdIAQMMAowCAYGZ4EMAQIBMIIBBAYKKwYBBAHWeQIEAgSB9QSB
8gDwAHUAO1N3dT4tuYBOizBbBv5AO2fYT8P0x70ADS1yb+H61BcAAAGMZslCvwAA
BAMARjBEAiAdw/WoricIAki465uVe1zqRStCJ0rbKnCa6MEOOM4JXwIgIdqD+XWt
rACpChVy9PkHFgr/ohUD6d+j4of7JhBk6KgAdwBIsONr2qZHNA/lagL6nTDrHFIB
y1bdLIHZu7+rOdiEcwAAAYxmyULGAAAEAwBIMEYCIQCwP5JvQWN1mNxz3uAHGqG4
sTtsD40gM3Ay3LC9N1ptRwIhALdc3/gyPISW5FEetKZuQALU9/Qt6sjZeStgIxBB
hEXZMA0GCSqGSIb3DQEBCwUAA4IBAQCoQw7da2LV6JWjTqkP2lxhnDQomPLZRxXj
yBJHOK/Oz4BBQbFTIU+Pf43X639lgC0m5TZRZPlF8qj6cu8gANs2/EYoqqwKkkJD
71sLInJM6bFYseeETMYXm9ozcftRTdknntKF3y6EYw03p6BZY4C79jMULdDbKCKK
FwV4tb7hgX5RyfbFoy6fW3Om+uqFL03K3XJ7+NPs+XGF0t17mI//dAUWVYOfH+Ym
5EaAJTBkFH6uFlN8iGBt0QkvgaYoqE2uFRAWkp+0J9x9L2ixABtefSONxbC9ew/E
ncpTgrWZMKXBl9/Fgry6biKYyNrYmmpzuoUbN4uo6DHKqs0jTJJn
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA12QPngX4plFk0xD9v/Sj
FvkCdXL/8HxjemuaNKbIWh0jMM9im9TrhumnBMC7takotp6Sv4dzN0JiW37keI5p
m38PXNmfyJE7PqFeMMAed0wCYlIb9TysfeeBObf5EES/d+hNm1mzq/DrekO0Gj/b
PHSYvL87Tjpd2FEkTXisNWGw22gZ/kyzlFeUCIHla87iTUu6Z5iBOf7F+VqqNLyM
1C5EZpQ5VaYT6Su9wUnzfKmHibajl+HimDdXy7516EWiZgYE3O0Si96PH8NGwFht
Bd6bn0h52F4jmjp9OCMnvAq1rZl3R/kN78/TWzZmJuO8kaev78lGoSYL2IFOltN1
cQIDAQAB
-----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 365281348228104984720221765062998162921574
 . . . . . . . . [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 2023-12-14 04:25:14 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-13 04:25:13 +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 'k-partners.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 27190577488263998947284691851710062039335869397010969465766951918085902242079821164598024051101043307160631244916890890629158357442696349750065532204886408861100182499951552510511225654990834317732002000596668789155855252743009829711363152250581093890678250550772163817197939026806943537649522919131595167277938689199714653453462339872090513654753789930427526457319032073273884140330228081171975231414141666454197570414897511824369384983514654414230538612154517563627007574148682708633008600284301113807345121931340194864741436218231949939338609163176566301277435886555786365727821944151478243099199051280112560600433
 . . . . . . . . . . . . . . . . . . . . [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)
							2907ea29bfa2627101595abad418c8cae4c84580
 . . . . . . . . . . . . . . . . [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 (42 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'k-partners.co.jp'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.k-partners.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018c66c942bf000004030046304402201dc3f5a8ae27080248b8eb9b957b5cea452b42274adb2a709ae8c10e38ce095f022021da83f975adac00a90a1572f4f907160affa21503e9dfa3e287fb261064e8a800770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c66c942c60000040300483046022100b03f926f41637598dc73dee0071aa1b8b13b6c0f8d20337032dcb0bd375a6d47022100b75cdff8323c8496e4511eb4a66e4002d4f7f42deac8d9792b602310418445d9
 . . . . [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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