www.belong.co.jp

Issued by R3

About this certificate

This digital certificate with serial number 04:32:c8:06:b7:34:af:30:11:a0:07:fa:96:f4:9b:0a:1b:e6 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:
  • 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=www.belong.co.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:32:c8:06:b7:34:af:30:11:a0:07:fa:96:f4:9b:0a:1b:e6
Serial Number (int): 365729142541881084050598655201648854047718
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: f5:dd:86:10:3f:51:a0:12:c9:49:bb:e0:1e:4f:2a:ef:f0:b5:c3:ad
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 0a:0d:33:21:b8:97:8b:30:4c:cd:f2:09:15:7f:4f:dd:23:cc:9b:38
Fingerprint (sha256): 29:bf:cf:91:06:2c:28:6e:50:21:6d:09:a9:e4:0a:d3:b2:ec:a2:7c:81:7e:4f:11:99:bb:ce:bb:25:5d:86:c4

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

Revocation information

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

Check the revocation status for certificate www.belong.co.jp

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.belong.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

belong.co.jp
www.belong.co.jp

Other certificates including the domain name belong.co.jp

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0KergcbCXU+ae8nd5k2P
RrYQObQBbYugUeHE2FV+myQLAhquaejstIcsTr/gLiCiYD1UHyUSbdbH/KAwxuxZ
xnx/UW+qiRWEsGpqs3etJgIi+IK+rpS6hJcPkm8MfzEhb0u9pDBvkIY8VvZnym0Q
S4gSahyYH5exVyUI36GN3/qFP22UwFN9DGCLMTQcdbFo3tX1edOP0zUS1S3Xh0Hx
U+G1BMUo/jCMdFTzaIxyeDiqgcY5PWfjhhhMFTB/+33r7FuKAulzrfuZqHZlk2vZ
t8M1ymwaHtn8RMzEygWMERuPGQjlgjFmd/CWZpV9qwSCpZpr9T3etONzBhsMsvNm
QQIDAQAB
-----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 365729142541881084050598655201648854047718
 . . . . . . . . [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 2024-02-12 00:10:56 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-12 00:10:55 +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.belong.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 26340248566350650528196210071155908241702507683293924849829238498146008312601661554749158623769518056818393860212628627151547091222071568382573229334459909250578714864196789278293894868857068384679412301705398885682715465487901034110904029566657569087670853047189085167635833306314777413504756721409426673611730007742538822822376285099222272013702777402382316451048422372486474002690358795462984322297913185150733883408754127774329646885237932527023221030693001624023205746445942573125446684005427323548532999547013530233203486433730851438787766289490137681996436363958831910846160945969116272029386973164640585082433
 . . . . . . . . . . . . . . . . . . . . [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)
							f5dd86103f51a012c949bbe01e4f2aeff0b5c3ad
 . . . . . . . . . . . . . . . . [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 (34 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'belong.co.jp'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.belong.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)
							00ef00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d9ade02c30000040300473045022100dba0529df85f109ca6612c6470a1c7bf0768faf0275fae9f6c9af456ee4cb02d02200818a828571770fb37317458f448e10f9053b5955f9bd3ba9dc493ce0b9cee81007500a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018d9ade02e3000004030046304402206f65f532b6c87eaae73315c375a69dc17fc5bdc00fd7cf303dfea30b00e5302902200b3e56fae70086fb4bdafab7fd850af2c60dc92c0bc20b6d8ff20c8b0407f303
 . . . . [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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