www.xbit.jp

Issued by R3

About this certificate

This digital certificate with serial number 04:61:c4:c6:af:35:8f:ab:57:41:6a:7d:3e:be:25:94:48:45 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.xbit.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:61:c4:c6:af:35:8f:ab:57:41:6a:7d:3e:be:25:94:48:45
Serial Number (int): 381718093633989087696473066415520379848773
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: fc:4d:40:fa:05:99:99:2d:4a:a0:cf:20:86:29:36:ec:3f:34:68:8f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 16:12:2c:a1:c2:80:fb:eb:68:75:5b:14:14:26:6e:98:99:14:8a:7c
Fingerprint (sha256): 10:b2:43:c8:aa:65:59:2b:0a:81:df:b5:45:ec:39:e0:a0:76:91:e3:8b:d9:b8:c2:04:1a:69:6c:81:ef:b4:6b

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

Revocation information

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

Check the revocation status for certificate www.xbit.jp

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.xbit.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

www.xbit.jp
xbit.jp

Other certificates including the domain name xbit.jp

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cs070.xbit.jp
cs260.xbit.jp
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cs265.xbit.jp
cs032.xbit.jp
cs029.xbit.jp
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cs064.xbit.jp
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cs066.xbit.jp
cs039.xbit.jp
cs052.xbit.jp
manual.xbit.jp
cs073.xbit.jp
cs269.xbit.jp
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cs265.xbit.jp
manual.xbit.jp
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cs268.xbit.jp
cs267.xbit.jp
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manual.xbit.jp
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cs074.xbit.jp
cs073.xbit.jp
www.xbit.jp
manual.xbit.jp
cs067.xbit.jp
cs261.xbit.jp
www.xbit.jp
www.xbit.jp
www.xbit.jp
www.xbit.jp
i16-os197.xbit.jp
www.xbit.jp
cs039.xbit.jp
www.xbit.jp
cs046.xbit.jp
cs031.xbit.jp
xc519.xbit.jp
xs622.xbit.jp
cs042.xbit.jp
cs075.xbit.jp
fs220.xbit.jp
www.xbit.jp
cs051.xbit.jp
xs660.xbit.jp
manual.xbit.jp
as319.xbit.jp
manual.xbit.jp
cs266.xbit.jp
cs022.xbit.jp
manual.xbit.jp
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cs026.xbit.jp
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www.xbit.jp
xc520.xbit.jp
ps122.xbit.jp
www.xbit.jp
cs056.xbit.jp
cs266.xbit.jp
www.xbit.jp
md.xbit.jp
www.xbit.jp
cs213.xbit.jp
cs047.xbit.jp
ps119.xbit.jp
manual.xbit.jp
www.xbit.jp
fs220.xbit.jp
www.xbit.jp
cs024.xbit.jp
md.xbit.jp
cs071.xbit.jp
manual.xbit.jp
cs068.xbit.jp
fs221.xbit.jp
cs040.xbit.jp

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyHbGv+sIsMJ/AClyMw/K
EnLn4Mku7UCbIFUrhat7ybUmvhvBdtfmtytfT0OC5qsY4xs5ssotnUVGLNm05Ck9
DM6T0HriJSBOFtfy2BMUjT1Gx0tigPDR7B8eIsNmcHOZ47xADT4PIOnM+V1e4Q4J
xrD9AnBwoOnPQwcbebeP9yh9fBm2IcodDYHv3lgNc012mNGZozIPHB/9huV8hriW
EHMaybNB29+k3BEq1hOgnGbCAAJMtWo6zQSALk7Q3qCNmrigHo8bpb0Vy63N1iOB
JcFfDLEwoaAordz8QR1VYowx2yaK733inAJMY2I7JXMNKYrJ0gmhYr7HSSk/4FnO
gQIDAQAB
-----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 381718093633989087696473066415520379848773
 . . . . . . . . [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 2023-11-21 02:00:10 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-19 02:00:09 +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.xbit.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 25306231802219612888541189591087454665141828532139291844662480441806712455895918164207853732228614767772672134318688785025841034166031701871582941044256042130795212821215428116463150083283848413713166363535411019726108943027845325818688644697930023943789326208746710860749121859541197970998500843501030001962470011943658136411075686114326534608258447392391773870478799498567300960341650387199579268980551560331476134566237068042817644613241875752778516413728073748678480570783102944115619480232828350885729036709317886999781532888545667972139553871674345170757084991509653300017170144302303510345961614610071956344449
 . . . . . . . . . . . . . . . . . . . . [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)
							fc4d40fa0599992d4aa0cf20862936ec3f34688f
 . . . . . . . . . . . . . . . . [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 (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.xbit.jp'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'xbit.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)
							00ef0076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018befd22c93000004030047304502200aba981115056a653fb8b878310c5078cb5b57f24a652b0292c1922d9abc4cb80221008490bc662389ae13835d2cdbffb69a95e540b99d4b980079f6a49362e286ed4e00750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018befd22c9e000004030046304402203ecc40868f02c29756fe5789b90fbd7a38abc41e96fdcec9e4d4baa42a87305e0220559b2b404202b19927728c13e0b0d7fd2d8c6c800529049634c83051d8e2721d
 . . . . [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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