test.kitchen-city.co.jp

Issued by R3

About this certificate

This digital certificate with serial number 04:50:14:07:c9:e3:d9:7e:69:61:40:d3:84:6f:65:f8:50:1a was issued on by Let's Encrypt.

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=test.kitchen-city.co.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:50:14:07:c9:e3:d9:7e:69:61:40:d3:84:6f:65:f8:50:1a
Serial Number (int): 375698358081526206018967791728988366852122
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 57:90:8a:a3:24:95:f8:de:3f:4d:e9:da:84:43:8e:b7:23:8c:5e:73
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 96:3d:cc:5f:66:8e:58:fe:f7:44:9b:30:51:0d:ca:92:72:d0:c5:02
Fingerprint (sha256): 69:c0:76:e6:3e:80:22:fb:b5:ba:07:45:59:b4:c4:73:db:be:43:59:fc:ce:41:dc:56:b8:f7:f5:62:41:79:7c

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

Revocation information

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

Check the revocation status for certificate test.kitchen-city.co.jp

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for test.kitchen-city.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

test.kitchen-city.co.jp

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Certificate

The complete raw certificate details for test.kitchen-city.co.jp in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE+jCCA+KgAwIBAgISBFAUB8nj2X5pYUDThG9l+FAaMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDA0MTcwMTA5NTdaFw0yNDA3MTYwMTA5NTZaMCIxIDAeBgNVBAMT
F3Rlc3Qua2l0Y2hlbi1jaXR5LmNvLmpwMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8A
MIIBCgKCAQEA4QdgiOm53SmF60PsMn6Ltxy/fPX1Jp8skYZ+aNyWqdAiWbVjq2xl
YeJT51azj/aPm9Vd5gUyrq74nmXYS7tmj4twJ82/0uaW95qXoQVsdl7qJ1RcSjFz
C62LIUtAv09CvaoGV3dLJTH+BB1rJEZg5ZaAnJ7cblr5AqPWqtAw1JqcPHDeuA9v
tGR0Xodm9QCepqCXo2FhUJpF66nWz+7c7nWFmF56Weib/ko8ktugz+YMH5rIiClq
vBj+alPEjms3McPy0ynpMw5ghxjvv61QRNTqzUKqkQ4+AKndPe8hAdAVhz+DEuwH
U0K5oISOSirQQq1DKGi0A6MSDGVM0YgFnwIDAQABo4ICGDCCAhQwDgYDVR0PAQH/
BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8E
AjAAMB0GA1UdDgQWBBRXkIqjJJX43j9N6dqEQ463I4xeczAfBgNVHSMEGDAWgBQU
LrMXt1hWy65QCUDmH6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGG
FWh0dHA6Ly9yMy5vLmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmku
bGVuY3Iub3JnLzAiBgNVHREEGzAZghd0ZXN0LmtpdGNoZW4tY2l0eS5jby5qcDAT
BgNVHSAEDDAKMAgGBmeBDAECATCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB1AO7N
0GTV2xrOxVy3nbTNE6Iyh0Z8vOzew1FIWUZxH7WbAAABjunRYgEAAAQDAEYwRAIg
LfibWzybZMdE5c+VQXwY9Gpk4GsMiSDxqePX6CmHCe0CIDUjbk7jT8P2b6ObH+rR
uQnNJEXELPJ3bcqSjxbWXl4UAHYAGZgQcQnw1lIuMIDSnj9ku4NuKMz5D1KO7t/O
Sj8WtMoAAAGO6dFiCQAABAMARzBFAiA2qEZUA7aFi+9E54zGuGH2JPgqGTrolZkQ
2M6Evi6bNAIhAJsMyKwFaeX6agEfks5uWvlUwEP/SazrfZ1QTA+tv7yRMA0GCSqG
SIb3DQEBCwUAA4IBAQBiNvQZKHPJBJZdwR6qG5XivXh80PXsGlErwhx69/2HKPai
cEV6huk6RayOYUxkaopB7M1QOtZOUagBF5F5WZje5CHJ9FFkzvbCBc9MCGiEIIpV
1uE7ZO5H1gk3BckD5ZLsdzd+oG3zCNtNUGBmpgRv3Bm3hxPn/gsj06v1W7nnJtb6
SQogvrf4yuUunI2edUNIW4512tLAvbga6swKCCEA+2iGvh7y0OSRvKqdlNtLQ7Gv
bzR5jbQ1m5YJ0s63AtCHT1T2oPcOF0UjAKipHUUWCnTxOtaQmgavY5OlnFdpy5AN
AzY4W3deZh6elF+YJU90ezD3qv3G3UrOeLQFSNHv
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4QdgiOm53SmF60PsMn6L
txy/fPX1Jp8skYZ+aNyWqdAiWbVjq2xlYeJT51azj/aPm9Vd5gUyrq74nmXYS7tm
j4twJ82/0uaW95qXoQVsdl7qJ1RcSjFzC62LIUtAv09CvaoGV3dLJTH+BB1rJEZg
5ZaAnJ7cblr5AqPWqtAw1JqcPHDeuA9vtGR0Xodm9QCepqCXo2FhUJpF66nWz+7c
7nWFmF56Weib/ko8ktugz+YMH5rIiClqvBj+alPEjms3McPy0ynpMw5ghxjvv61Q
RNTqzUKqkQ4+AKndPe8hAdAVhz+DEuwHU0K5oISOSirQQq1DKGi0A6MSDGVM0YgF
nwIDAQAB
-----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 375698358081526206018967791728988366852122
 . . . . . . . . [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 2024-04-17 01:09:57 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-16 01:09:56 +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 'test.kitchen-city.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 28407256395593303517243085471491228801921804814176377853701542680858194495578568082478446396787866141757514407104311016053811265539008112916622955469404582327288004931010511387856937365671747575392861748837686172637726687053722819328486800223236273116445341868732622100674745190259873999252964107906837263535936154561342410152927899111646272053125290627054297890006421332975367911954342627618523740435646183201267355428540670339271666228393961526892513049984078199416699330433909029659749918643131846460222779265703988204173973189653111885403198367832451773927046378517572629577459978714889710149940510735447278224799
 . . . . . . . . . . . . . . . . . . . . [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)
							57908aa32495f8de3f4de9da84438eb7238c5e73
 . . . . . . . . . . . . . . . . [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 (27 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'test.kitchen-city.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018ee9d16201000004030046304402202df89b5b3c9b64c744e5cf95417c18f46a64e06b0c8920f1a9e3d7e8298709ed022035236e4ee34fc3f66fa39b1fead1b909cd2445c42cf2776dca928f16d65e5e140076001998107109f0d6522e3080d29e3f64bb836e28ccf90f528eeedfce4a3f16b4ca0000018ee9d162090000040300473045022036a8465403b6858bef44e78cc6b861f624f82a193ae8959910d8ce84be2e9b340221009b0cc8ac0569e5fa6a011f92ce6e5af954c043ff49aceb7d9d504c0fadbfbc91
 . . . . [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)
		006236f4192873c904965dc11eaa1b95e2bd787cd0f5ec1a512bc21c7af7fd8728f6a270457a86e93a45ac8e614c646a8a41eccd503ad64e51a8011791795998dee421c9f45164cef6c205cf4c086884208a55d6e13b64ee47d6093705c903e592ec77377ea06df308db4d506066a6046fdc19b78713e7fe0b23d3abf55bb9e726d6fa490a20beb7f8cae52e9c8d9e7543485b8e75dad2c0bdb81aeacc0a082100fb6886be1ef2d0e491bcaa9d94db4b43b1af6f34798db4359b9609d2ceb702d0874f54f6a0f70e17452300a8a91d45160a74f13ad6909a06af6393a59c5769cb900d0336385b775e661e9e945f98254f747b30f7aafdc6dd4ace78b40548d1ef