www.oniwa.co.jp

Issued by R3

About this certificate

This digital certificate with serial number 03:9b:85:57:80:c4:eb:68:d0:78:d2:22:cc:58:a9:f3:03:6c was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=www.oniwa.co.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 03:9b:85:57:80:c4:eb:68:d0:78:d2:22:cc:58:a9:f3:03:6c
Serial Number (int): 314257866333042292928078511213196963152748
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 2c:25:de:ef:df:29:11:0c:9c:e8:20:c3:62:6b:ac:99:fa:cd:1c:2f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): b7:37:7a:42:1c:75:33:c3:54:95:44:e0:a4:10:fa:7f:be:e0:f4:c1
Fingerprint (sha256): 36:0f:70:6d:46:b0:79:0c:b7:a1:4d:e4:40:52:2e:dc:1a:04:ce:cc:d8:cf:6b:84:2c:42:d2:e7:a0:a6:09:dc

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

Revocation information

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

Check the revocation status for certificate www.oniwa.co.jp

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.oniwa.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

oniwa.co.jp
www.oniwa.co.jp

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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1Erx5d5KrvdB5HvncwOX
wRKqn9YoJ51wvoCYn9VzBU/tMVnS4R16K6+9YIQvEHTOwBiE1s1jd9/irr1/3NCK
XSHFGidqNMNJjVj94EtGCHIPWgIMhKqPf6/6996Buag5/zUSxEp2cswY4dwFDBhx
Yy7FsP9kwbRCAHOdELr6QxTDiqy+Tsa3hmGlpufWi4Bhw6ucpQSUR7AIxhm8vYqY
lDFOLX5d+cQmFF9MfDa/GwI7dOnJpL44MwKHC3oIw2r/M9ESwFyHNnQXhGCg3SlS
HixQyRdkeOQwT/MA8ijPkJ4RbVtVT3MwMZx8dSVFO1vdsAKmiEq52k2G0j87j3n3
xwIDAQAB
-----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 314257866333042292928078511213196963152748
 . . . . . . . . [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 2024-04-20 02:23:37 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-19 02:23:36 +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 'www.oniwa.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 26799477367176232964886461401434745499580733198821792260190732445837308282555837728752305926657059493845904001679284548580921391901085916801149556606829327871885690369510487666261925597988927371145519314346992143806596144766494938977699030164903456764456267292998159992197115935172325798882571617544450596083228586007349733161169171751261630545921293975565297237243967567395589974052307946527589400460662183035272380250658206583684807564218452764289620189327814836370709901131935194275608291659875885738604678100194555190191760652371362182138486954251156624256423443453264654830889926412100439723868497366556771743687
 . . . . . . . . . . . . . . . . . . . . [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)
							2c25deefdf29110c9ce820c3626bac99facd1c2f
 . . . . . . . . . . . . . . . . [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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'oniwa.co.jp'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.oniwa.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)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018ef987e9780000040300473045022079fcb50be4040d057f21b2128ea0a852b736cbdd98b52baf113f0c395de1acb2022100f2396d33cd813ea1e64533de6c0366eb4f324e4a0a1bbdab2cd3cd563a5bdd89007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018ef987e97500000403004730450221009b29d0ea0f39ddc688fee5323130a99b9528a968d1e6fb607013173c9577b24a02202dde1c0a4dd684fe0d3b62f5fe809734f6f2b51c3bb3db747ba94feffe75fc22
 . . . . [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)
		00915fa8e6e9b4bf13aa0465e8183f6f88361e5baec6fcf755593b97d8657e4067e5c96e13b2440e23cc15bfa83b966d489524ca2ce5d7bafe7918f0fefe6c0ba6e21c0158f8e000df0c152c52c029abdbb00af81f954078f38ce5a970534a6f0b1055be1ee41002f4d9c47f26b27e51bf69c5eecec317fd42064bd30a24ae512dec809870a24c3e1b09ac629f0cf8669154d3ea1f2809499e70e1bf8f876f13b69012eaa4d5eeb8258e9e101deeaae243b5b0327aa0bf660a458619417b8856a1c1688518ec816d69669838aa35dce3bd29b11af0b7be783decc214a1cdf05721bce1ad0fdf1199e527bd164c66c282a0c886f75be185b787acd013ab0ad9c218