www.kitchen-city.co.jp

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:88:00:19:3c:93:e9:ef:88:82:c1:b9:ad:1a:68:ad:32:c0 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=www.kitchen-city.co.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:88:00:19:3c:93:e9:ef:88:82:c1:b9:ad:1a:68:ad:32:c0
Serial Number (int): 307615390732613350035491580519901299552960
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: bf:fe:7e:95:2c:ac:fb:81:15:e8:de:b8:6e:65:16:ce:7a:32:b4:4a
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 3a:52:41:95:64:57:d1:30:e9:6f:e4:47:8a:21:7b:77:b3:55:86:56
Fingerprint (sha256): 7d:8c:16:e3:00:e9:a2:7a:e9:1c:88:ac:3f:df:64:91:64:f6:1a:4f:04:ac:22:ee:3f:4f:69:ba:c1:7b:ea:e8

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 www.kitchen-city.co.jp

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.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

kitchen-city.co.jp
www.kitchen-city.co.jp

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(limited to 100 certificates)
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form.sim.nabni.sa
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helpcenter.vortekspaces.com
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support.myqudoz.com
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www.kitchen-city.co.jp
building.kitchen-city.co.jp
www.kitchen-city.co.jp
www.kitchen-city.co.jp
www.kitchen-city.co.jp
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meeting.loxtonloxton.com
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www.kitchen-city.co.jp
www.kitchen-city.co.jp
yoyaku.kitchen-city.co.jp
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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAr2NpTLkxn7alQxSdPHOD
Jqg5J2VqghpiDgs6MsCGwZsTmsQDZvT6u/KAQRNuOhofVbTv+h8JaDUggWn/3t7X
5ahgRGPLIDA9T2KEmLLbRlDpqZ/Th6552UAPYt2B9tFbO1ETonMslp0NofgceMBt
62ui7jtYXPT4oWYalb5Wur0m+RVcNuRXuobECpqbwxEfvwyey/jP9S+YgkcMN9ps
OhDY2/z0IwSEFmB3+uJhZvoyflPZw43VuZzf7ASRkPk606J8IS+CKBItTwXoVBhz
XTBTmoswp/mjHgGZuqXPXLZ6j0rqp7p7BnU7a1HMROXfCWS4gYhCDu+wHKXDWeWY
TQIDAQAB
-----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 307615390732613350035491580519901299552960
 . . . . . . . . [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 2019-10-27 01:06:51 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-25 01:06:51 +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.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 22140724921440728875085877865726084492124290886611371782410283714418683044108323823116390076354525597443370249484516410484143185040909158087568346552776760873972852015158015564940900621940517729891303012382751440861556588010898005051461858980533203517149618580858652202135015221257051469264065716493166779355471567150245251250138913086016475281938475934826177530057216820129760558218728403177702628634862264608824316928828459369740080951746469833528608051409308583468622301809724095591943218769334782269098619930941590806274393811735513752296894936506372884548324783197343274554431815293965139469516880971214442829901
 . . . . . . . . . . . . . . . . . . . . [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)
							bffe7e952cacfb8115e8deb86e6516ce7a32b44a
 . . . . . . . . . . . . . . . . [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 (46 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kitchen-city.co.jp'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.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 (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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016e0af7567c00000403004730450221008f89f9223de7fd3b90206052efc3f1baa473ecfb1107b4730400a00840fb5595022013d120a05dc418498cbeb2c55acf923780c1503a913d170a0cdcaaf343b5bbe1007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016e0af75880000004030047304502207cb3644eb25ccd5276b0d2a3ebf7c2585635f03304e6ada4ffd78381e3c0cb2c022100a7a6e639b2f514fe8f01b7d02288b7e4de72a3575fb32387b96ce82eee15f6ee
 . . . . [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)
		0069fcafa3ffbaefb962ec34e3a4147a87347e211827b13e43e5c2e6cfe0b1ab1788ce9eec40a7d2c37b05360a8a098df69f347498e23959da6927cf8aae4865ac899f8b2f571020e3e7dc5a812ad6b23eb21e33b8ae3ac9599d68e91092f6eac26d420d930c5fc6ea7369d894a46d9f11c1e82a72ce0cd82218af6670bea63b8786e83c5a82cf7300d07927b366419613e99a7f42351a1a7f33de760f3547bcbe73bd5baef6eec2bb3025e7f5c11a09a1769a0b0e8f063ff0f23fa0734cf99cc07fc6231f415767541b9b26818f11ae26c50197c8336ef4c84848b8548158517944aaaa42b667027d7f932b6a9b8ef5773dcae7c2acc602771b75f7af39bd4829