yamamizu.co.jp

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:e5:14:79:49:21:23:3e:d2:a2:d7:23:17:9d:9b:db:83:1a 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=yamamizu.co.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e5:14:79:49:21:23:3e:d2:a2:d7:23:17:9d:9b:db:83:1a
Serial Number (int): 339288734131252567457573675416759316480794
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: f6:95:b2:94:0e:fe:ae:6f:21:25:92:ab:7e:6b:3d:99:08:6b:ba:2c
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 47:9b:5c:6b:ff:c4:bd:69:90:9e:d3:23:0a:f5:12:7d:01:1f:df:f5
Fingerprint (sha256): 26:89:2a:63:86:06:ff:61:a1:3f:c1:02:cf:66:5f:bc:fc:a1:55:bb:78:46:2b:67:dc:69:12:8b:39:8b:bb:84

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 yamamizu.co.jp

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for yamamizu.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

www.yamamizu.co.jp
yamamizu.co.jp

Other certificates including the domain name yamamizu.co.jp

(limited to 100 certificates)
citrix.yamamizu.co.jp
webmail.yamamizu.co.jp
yamamizu.co.jp
mobile.yamamizu.co.jp
yamamizu.co.jp
mobile.yamamizu.co.jp
citrix.yamamizu.co.jp
group.yamamizu.co.jp
citrix.yamamizu.co.jp
mobile.yamamizu.co.jp
webmail.yamamizu.co.jp
yamamizu.co.jp
group.yamamizu.co.jp
group.yamamizu.co.jp
group.yamamizu.co.jp
webmail.yamamizu.co.jp
yamamizu.co.jp
yamamizu.co.jp
yamamizu.co.jp
group.yamamizu.co.jp
yamamizu.co.jp
webmail.yamamizu.co.jp
webmail.yamamizu.co.jp
yamamizu.co.jp
yamamizu.co.jp
webmail.yamamizu.co.jp
citrix.yamamizu.co.jp
mobile.yamamizu.co.jp
yamamizu.co.jp
group.yamamizu.co.jp
webmail.yamamizu.co.jp
yamamizu.co.jp
yamamizu.co.jp

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3wBZSnK65rhiS7GO/bWj
cZYv1utyRGmDRlQV+vw54RsNGLf9jsSaAOcjL4KRv3uKKB2i2ZkqyLbpooTGTvAo
vg/baxUanfZhBata2Yegt2+JyRBJXNwCQ9NbH9TZMvo9mzLFtrRANlriiMELjI/c
A5CARC2x2rAVYSt5MZwIb13N+7tKfyWDIvsFx/p7OL9f3IrzWps+oGx5ie6HveVk
Qj91ANyODm2BV+6nu39yUfAK1sgj66LlysAwcqj03w+DEGt/Tq6jWIBKGOxA7fjW
4+ETQAOVUt4nrsxd29kll9F5K3k5qvbKyh5UafsLa9o5PIXoSj6LsPkn1p8AKlcj
awIDAQAB
-----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 339288734131252567457573675416759316480794
 . . . . . . . . [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 2019-06-22 07:53:58 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-09-20 07:53:58 +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 'yamamizu.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 28151314003294416642412580314474418525894798727675883156071683718812325398722677604518586774638804736125650875682621798442835213791277765989769868197347194281391374375550949643919018266511400112510167622851979004109279533520649048914843104210821568048452110978328112159128180761065700334883549353021975343966875789149235938569042433838769314491732634632471399878837259546634767471984407354760715317302812436440276477369338432289372241890531493564302393230905266978000889045743747860552451060819738824313096560832191982311368373271239878944104429581539324927320428835084131764794636669611013291882931110200472130495339
 . . . . . . . . . . . . . . . . . . . . [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)
							f695b2940efeae6f212592ab7e6b3d99086bba2c
 . . . . . . . . . . . . . . . . [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 (38 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.yamamizu.co.jp'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'yamamizu.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016b7e646a04000004030046304402200d23e65d41117bcb359278e45036e6b82dd53fce9047fd17f3f3b6a5ef4b8f0402201bccef403f5279b95b3172cc02e1726bdcb377ae34e838ca16ad58c31e35e131007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016b7e646bf100000403004730450221009e3b9926f99354acd31c512fc1747b11c62b26fdf41547b6566005e486b986fd022013b1626f177bb077a833a25d68c81110f814a8c7bcc0540f4659a86af9a51108
 . . . . [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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