www.s-m-s.co.jp

Issued by R3

About this certificate

This digital certificate with serial number 03:4c:21:95:27:35:06:9b:87:59:bb:6c:99:a4:0f:d8:81:24 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.s-m-s.co.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:4c:21:95:27:35:06:9b:87:59:bb:6c:99:a4:0f:d8:81:24
Serial Number (int): 287242956652579999164617510861964484051236
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 8d:d0:c2:72:a2:ee:fd:00:e8:dd:36:2b:2d:74:6b:bd:a6:4b:a6:4d
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): e4:11:57:44:42:da:90:03:c0:a7:1b:44:5f:ab:12:68:31:a5:40:2e
Fingerprint (sha256): 45:05:2c:93:07:69:74:53:19:e3:0b:10:35:72:9d:fb:47:01:c5:d4:71:f9:09:e1:58:9c:66:6f:a6:e2:27:bf

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

Revocation information

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

Check the revocation status for certificate www.s-m-s.co.jp

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.s-m-s.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

s-m-s.co.jp
www.s-m-s.co.jp

Other certificates including the domain name s-m-s.co.jp

(limited to 100 certificates)
ssl.s-m-s.co.jp
www.s-m-s.co.jp
ssl.s-m-s.co.jp
ssl.s-m-s.co.jp
ssl.s-m-s.co.jp
www.s-m-s.co.jp
ssl.s-m-s.co.jp
ssl.s-m-s.co.jp

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAouZUEm3TaLSlPqrPlHLY
gCSneXbm9zk3FbN4GSc0nZ+lR8gmEWJMDBUws+1wofHRDwjUk0GIO9h/TB+eZGta
4Cs1HjCQDwq/v2VZhwvuIcP8YlbDOWwHoeuZIOJEG+c5vgSlmzczL/DZ4oJmuy+M
QuqA2Bgck7B931LVgGBusV/MW5GxCDD9lA5TwYQLuO0frXlEUvXDvEkud8Uj1s0B
+SMt3dVOMZCh/b65g9hcwvCASYvoUdmq139nqsc3ZnIaAWjBZLCWJtji/4hmwWw8
BDl++1E0bFJ2/ojVLU+U/CbFhgeMhuvs/H1E82o92ehfwONeZ4L74x/KFByyGL0p
CwIDAQAB
-----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 287242956652579999164617510861964484051236
 . . . . . . . . [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 2023-10-05 04:10:04 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-03 04:10:03 +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.s-m-s.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 20564184574754499461181798170895358638453418907342228428997727024045320324634544825077084584160018636285059058323759781316326085968504614542062862622890316350091526731549479004274525130580964969614575827793284934288647233152890852660251939387485052206788324210950375657335619359724631517955241363472982588954100449745163684710465632471878220991214917475989255927501813850627034523199221263132243133575815389055436941566106971063151327606860583823340217854386363552835829797798626458572988427956007535134470134536016284423291176180490425833435690478143503687837792350932689175630929149210830651452288941569452216756491
 . . . . . . . . . . . . . . . . . . . . [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)
							8dd0c272a2eefd00e8dd362b2d746bbda64ba64d
 . . . . . . . . . . . . . . . . [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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 's-m-s.co.jp'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.s-m-s.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018afe3e34bc0000040300473045022043777a64ccebecc958c84af59cabb5b66603b6607f28f5cda9d467cd8784f24b022100d690b9079ed741b83ab84af832a25ceb1a3f60cb063bd8b8afc045f9b57464cf0077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018afe3e36a80000040300483046022100cf28bcd6481e15798a3d6d9ce89022f7d3153313cdf5be488908aa2602f6a821022100e1e71cf441be028214281f13d286bdeea24e3a665de55f5831526ae6c29d4781
 . . . . [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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