bitto.jp

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:ee:83:19:4b:43:36:3c:2b:ad:c3:43:65:13:2a:a7:c5:43 was issued on by Let's Encrypt.

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=bitto.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ee:83:19:4b:43:36:3c:2b:ad:c3:43:65:13:2a:a7:c5:43
Serial Number (int): 342498321323839173688873604678877014639939
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 0d:97:a4:27:6a:5d:cd:35:e5:ee:fc:78:ad:ff:b5:53:ea:f2:2d:fd
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 6c:b0:52:9c:9c:d6:b7:ef:73:82:d5:27:6f:ec:a6:af:d7:54:69:8d
Fingerprint (sha256): 88:d1:8c:c5:e0:25:be:8d:51:05:7b:dc:b2:2e:c3:ee:21:c3:1e:e6:05:48:2b:b6:c5:0b:51:77:7f:b0:56:42

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate bitto.jp

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for bitto.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

bitto.jp

Other certificates including the domain name bitto.jp

(limited to 100 certificates)

Certificate

The complete raw certificate details for bitto.jp in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7/YIp7zwJLuj3GuwkRfu
yFu6SqkRJbJF8KUVfEhKaH1Mvf18Y+d8Onm5hunXzLkSkFZaZMHOMstGvnuBFMMs
ieYfttv6Yrjr+OZV568xxIA0sTbRo5xSqP+gVrrkksJRRMNXwltEI20VAamEKJ7t
eUe7QjBbjomvrL73c6dj6zvIndSn3NL8gm49pgaxdGrKaX4uqsV+m5Z5S+fu8wu5
A+4pF9rKuhSfPI4dC3zpkDG3T0Joi6y0pnIsaJxOep3AYgecMg3hNcK2JPxTIF1O
F7+GoOcg1gnRVIcxn5Q7Cq0J6WIWkD0gRUDxtrdzfVqLoEUmUebDW/FH/XMcXFq7
HQIDAQAB
-----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 342498321323839173688873604678877014639939
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-08-01 04:31:16 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-10-30 04:31:16 +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 'bitto.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 30292278680141981577526597993222050963166077056425009575974219048241695267434782754518422067556418779690607222647228160695309000837821324272077249310435663121829225743844593514076888401917834189271640319412270115400034429521971647177294232647894559403542248659781962566243327965747122426733029600543578778633623212562713038567544036984056950569436899650583925406402796243634395385543356778114633825519919687899237481472128840017462705654476233223967537433498668120102818595953296154728332654863862365188985848604331231461899413627890558329280738712836842000215086972593590507609927870683697070224130284077023080659741
 . . . . . . . . . . . . . . . . . . . . [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)
							0d97a4276a5dcd35e5eefc78adffb553eaf22dfd
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (12 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'bitto.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 (246 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 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . . . . . . . . . . . . . [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)
							00f1007600c1164ae0a772d2d4392dc80ac10770d4f0c49bde991a4840c1fa075164f6336000000164f3f80a1300000403004730450220336894c18b58b2a316011afd09a83ffcdc677e175a9c1067a715640d17413923022100ba32836e597d6a44873ae58fee85d4b593573e55377ab1fb29df07640a872d5f007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000164f3f80c170000040300483046022100c83babaa1247b26a46e333240768ef1d72dba12684f0cb1082e4f1a4c926fe7a02210095c3f0752b322f2166e3dbb2c0547c5b1ebdff70af2ecd45f21c8077f3e62ee9
 . . . . [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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