DV SSL/TLS Certificate for www.daiki.jp

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the www.daiki.jp DV SSL/TLS Certificate

This certificate with serial number 06:44:80:d7:07:dc:ea:88:16:86:dc:58:09:0f:57:be:80:ed for www.daiki.jp was issued on by Let's Encrypt.

With 2 subject alternative names, this certificate can be used to secure multiple FQDNs. This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for www.daiki.jp provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • 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)

Let's Encrypt

Organization: Let's Encrypt
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 06:44:80:d7:07:dc:ea:88:16:86:dc:58:09:0f:57:be:80:ed
Serial Number (int): 545984174227949996606214005034299735048429
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: a0:40:51:3d:b7:46:03:4d:d2:25:c2:f6:e7:ef:7d:ab:de:ae:cb:3f
Authority Key Identifier: c5:cf:46:a4:ea:f4:c3:c0:7a:6c:95:c4:2d:b0:5e:92:2f:26:e3:b9

Fingerprint (SHA-1): dd:d7:db:d5:d9:82:6d:14:a7:c8:d5:82:f4:4a:1c:c0:c7:76:50:0f
Fingerprint (SHA-256): 76:cf:2c:ac:ea:a0:dd:f8:a4:f4:0c:6c:8e:64:98:1f:b1:ef:61:f9:ca:6d:c8:1b:5e:f8:e4:1f:28:f5:8f:3f

Issuing Certificate URL: http://r11.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/110.crl

Check the revocation status for certificate www.daiki.jp
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for www.daiki.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
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

The complete raw X.509 certificate details for www.daiki.jp in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvFPbgvLT1plmP664We+E
Dbb9HrHBgSIxpaeancUzYKcZ0mEsJaKcGIAAlYt8iiSA/wNcNkJe2165Q6oy5dUP
WrmFhXw6N6wZybJN9n1NhzsqB2UsKRhcuoP6lKDFXL9ol/pcSTsV7iankhakmc+z
8mWFflsvfva0G80lZ5MKZOP8RdS93KPsZpPji8NUOqasis/QvDBsEUQdOcL7qeYP
WzDexliaPkgYvrVtOhM1nIZPWFyNimuwK3eG9oOYzHl82yGuIsEJ1gNySfKTdiVy
iqUxfXDXldzyn+qYB4jnVPJ+Qkj8xCqGLGeZvvUNMfDoQ+anJAI2RaQvY1jFjhi1
1wIDAQAB
-----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 545984174227949996606214005034299735048429
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R11'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-06-05 09:21:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-09-03 09:20:59 +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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.daiki.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
 . . . . . . . . . . . . . . . . [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 23774152991728160118150411549286567845459822466332114895584522592278696088335736531531369630861845211415924626834111200008299427859812188810079563861752101256710220450680210896481372830688362780095166316418541322775555940884591506002813226453561214408276577929997625111758772469843811816660699688866778598065731952044865478209859266277632090492578120450595457798948800844195207919820188971450240017534507019181202424583163488539581405959281828347035920569751298277622693397129347821735522696777055606788966480447724062035502235799241772725572689731624586154205999214200957094187751512689044022830000266903646474122711
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							a040513db746034dd225c2f6e7ef7dabdeaecb3f
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName c5cf46a4eaf4c3c07a6c95c42db05e922f26e3b9
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (26 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'daiki.jp'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.daiki.jp'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (40 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.c.lencr.org/110.crl'
 . . . . . . . . . . . . . . . . [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)
							00f0007500ed3c4bd6e806c2a4a20057dbcb24e23801df512fedc486c5700f20ddb73e3fe0000001973f9a5d8600000403004630440220507691a176dec0700eeb22d8b70312fa03da506f51cc5c2c964d352c988509c90220789a83a32547641b81b4924b6fbfd431adaa717d014676fb5c69462cc576d07a0077000de1f2302bd30dc140621209ea552efc47747cb1d7e930ef0e421eb47e4eaa34000001973f9a5d8f0000040300483046022100ad856ef053e6a2b72442aa1069e5a88fba52bee800d022c38d893186e229689f022100e968c9c3df8cee516f977d2bf9c9f71f8ff7e594edbcd087bc2e73dce00e0d31
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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