www.puppy-tsukuba.jp

Issued by R3

About this certificate

This digital certificate with serial number 03:93:38:17:43:74:b7:02:1c:1d:7a:c8:c4:9c:5c:31:c9:3e 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.puppy-tsukuba.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:93:38:17:43:74:b7:02:1c:1d:7a:c8:c4:9c:5c:31:c9:3e
Serial Number (int): 311432923291418944262641426775142556617022
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 78:cb:69:91:52:99:cf:ae:2c:d0:7c:a6:da:16:75:33:96:7e:29:0b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 33:28:fb:05:70:4e:38:4f:1c:36:97:0a:6c:05:c7:b4:a7:35:af:b7
Fingerprint (sha256): 7f:62:89:46:47:b6:e1:cc:52:58:7a:af:55:32:6c:67:fb:2b:c1:26:4d:67:46:15:59:19:80:83:99:f2:f2:5a

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

Revocation information

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

Check the revocation status for certificate www.puppy-tsukuba.jp

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.puppy-tsukuba.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

puppy-tsukuba.jp
www.puppy-tsukuba.jp

Other certificates including the domain name puppy-tsukuba.jp

(limited to 100 certificates)
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
www.puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
www.puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
puppy-tsukuba.jp
www.puppy-tsukuba.jp

Certificate

The complete raw certificate details for www.puppy-tsukuba.jp in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyDCA22ZU6d52F1RjDEgd
EyWD8pmcuLLNrcMrRfdQOTHp2VcwlcNcQb/0D2zbFZILG9HnzmMRWZzlE9qKmtfY
dACzL3D3RgQ9IOhbDnE5vvhSaCzde+CaGbnq64H79BfvRi1S5ff9sI9mxI8IOGMY
53keIaBs3m0Bw+b7MTSe5DVJT8ZGecxlvRzHDa96Kd8ad8ur3/QOrUqawVItcZtY
EV8e2Svg1BU375W4glJXCszqOP/OCTDp4Zx2CwiktEKR2gdX1eUnazFtNbqsvsGP
ATN1HdYn5eQYEtKQkYtArMrm/AcPryWngEdMc+65HyoPNh9PXYCAfC95qZxeiDjq
bQIDAQAB
-----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 311432923291418944262641426775142556617022
 . . . . . . . . [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 2023-04-04 07:13:45 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-07-03 07:13:44 +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.puppy-tsukuba.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 25271578885431257411819128317571217611138010919314081423592033636083257599609285669452942526322564339831297700484046646786604273111999978948037975736232867382136678975720116044483663380176863399778085969066823456426094810757007408686839350540891396492522658179152445647973460566410851590911882304104696429348169896421974326777418750667250236901702617677062096019161709763704895847345480975283421338780272266166481703630246271080948593875187418592716531704899474694943632329684669755470388757421751999383619067909722128306837801686501546820562078163347769306083729002407850359481540099693733452914503706197326166551149
 . . . . . . . . . . . . . . . . . . . . [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)
							78cb69915299cfae2cd07ca6da167533967e290b
 . . . . . . . . . . . . . . . . [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 'puppy-tsukuba.jp'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.puppy-tsukuba.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)
							00f00076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb52000001874b5441630000040300473045022100c14ea4b6c62368dbc33c203c429cc90be1594955014bb0ffab046b9caf8b560b022012f29128e5d3a8da4a807f2ff7a15d30243c9c18f21d8db34b9df53250dd7c39007600e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e000001874b5441570000040300473045022100f365f6a4d6ce3f44abc6228861557c58080e9768d4d2332277708330f6b8880e0220582e01e671b0ed3e2aa46a5317c1712cb00916a52de12ef4f70b59585e6e6e55
 . . . . [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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