www.briant.co.jp

Issued by R3

About this certificate

This digital certificate with serial number 03:89:82:06:6e:45:e8:b5:3c:16:35:60:9d:06:d9:a5:cc:26 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.briant.co.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:89:82:06:6e:45:e8:b5:3c:16:35:60:9d:06:d9:a5:cc:26
Serial Number (int): 308128375093286318943568837647076440788006
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 24:89:8c:87:cc:a4:0d:db:d4:c1:8e:ff:52:1d:00:2a:13:a0:b6:da
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 0c:b5:a0:12:69:b1:49:b8:77:d6:e9:54:2d:c8:33:8b:98:74:19:6c
Fingerprint (sha256): 44:4b:2b:e3:ee:9a:7f:aa:47:31:c1:dc:71:3a:e6:1f:3a:32:6e:f0:59:0b:27:c3:df:93:1b:90:10:83:68:d9

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

Revocation information

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

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

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.briant.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

briant.co.jp
www.briant.co.jp

Other certificates including the domain name briant.co.jp

(limited to 100 certificates)
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp
www.briant.co.jp

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4w17OvVbmiR+vwo/X6RO
RVVUEQhw+CZt+ZuAlIX66tA2XgaSxBzZqmgUwcIhc/1eTCWxj6WZHuVKLqsltTN0
lgGGJOFhXz3sM1VYm3hSnYSaAZZIxTYtIodTW8CntLz+3bTN7Mi78ppT6qbQj9cw
tnpRdkJXh9wlqdBLe+nLQB5gh1HcMKClRN2U2rVrlUx0FoLGPmBHD6cP5EHjZG6J
rJJ9gpvucI1LbXFMc2k2rfb1vvxkNZsmzbgKJnUACvBjLKaaBrSsfYi84+KR01FZ
dz3M5X/xp0h2104fD/PPMHa/G4fgTpBclXBV2XASOKE3THze16cZnKs+WE8GeeVs
qwIDAQAB
-----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 308128375093286318943568837647076440788006
 . . . . . . . . [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 2023-12-10 01:04:19 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-09 01:04:18 +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.briant.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 28662743137816589994538652457100502234950734376585133203588578043716394528829720220001044150209246548894740800972587004621730988393420464782635225655704270270526627977184984399551461552217118537587900938453063009666580419984360618726372163629828919143792608408313370123479047498568021346174128696732077749809181138185720009982260387913414839022423030808070836023959935532134895132838022252283175471277066848486775385795534123352328670385907425329633176454898648285623843303362743140619064557225428708949699806635982180052500118328733549432669422118256767104713047316963127879673388909377035169046198254627203802557611
 . . . . . . . . . . . . . . . . . . . . [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)
							24898c87cca40ddbd4c18eff521d002a13a0b6da
 . . . . . . . . . . . . . . . . [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 'briant.co.jp'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.briant.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c5177dd09000004030047304502200cf425fb5a5d5e142478054c2b8428249506ae88ff6378d9425a4a7f71ea4c29022100a92e0985d27caf86390e22cde3f1bcce76a21765def8c8f77e8043d7f40745cc00760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018c5177dd54000004030047304502205b3333422108f45aa26b70c33012f7f4963ecd7a2c28a1eb43050aa3e60d1f3d022100af26ac852bae6da37f1b4a878332649ede5e97abf482f92f537857f27b53be54
 . . . . [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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