www.xbit.jp

Issued by R3

About this certificate

This digital certificate with serial number 04:78:93:fc:5d:9f:dc:cb:e6:e1:11:00:6f:35:fe:ea:37:c6 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): 04:78:93:fc:5d:9f:dc:cb:e6:e1:11:00:6f:35:fe:ea:37:c6
Serial Number (int): 389479734630672039795751290592168176662470
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 39:ad:1f:d2:45:32:93:c9:96:c8:b1:a1:b9:ce:72:e6:72:e0:5e:6f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): f5:da:76:31:a8:35:69:32:1d:73:dc:de:2d:96:24:f3:2e:e3:1b:51
Fingerprint (sha256): 03:13:97:f1:c4:2e:f9:7b:41:4e:62:5c:6a:57:dd:e1:cd:4d:8a:6f:ac:0e:28:b9:6a:64:f1:46:fa:b2:84:7a

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

(limited to 100 certificates)
www.xbit.jp
cs070.xbit.jp
cs260.xbit.jp
www.xbit.jp
xs622.xbit.jp
cs211.xbit.jp
cs265.xbit.jp
cs032.xbit.jp
cs029.xbit.jp
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ps124.xbit.jp
cs075.xbit.jp
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cs064.xbit.jp
manual.xbit.jp
cs066.xbit.jp
cs039.xbit.jp
cs052.xbit.jp
manual.xbit.jp
cs073.xbit.jp
cs269.xbit.jp
manual.xbit.jp
cs265.xbit.jp
manual.xbit.jp
manual.xbit.jp
cs268.xbit.jp
cs267.xbit.jp
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manual.xbit.jp
cs046.xbit.jp
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cs039.xbit.jp
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fs221.xbit.jp
manual.xbit.jp
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
cs043.xbit.jp
cs026.xbit.jp
www.xbit.jp
www.xbit.jp
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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsn5j71dGTPETepYkNhAG
ZXmHAYoiB1QDn9dBO4eZafGLPqGI3NUphDnWJ48DGJAY5eSgJn72+woEDdRlirwF
macVBsJ6ZoR5cDAfus7Is03wJuMEo+EJ3O1+iIsUpGOD5AQRglqTbXQ6wc+Ea23B
iCGvnnkVZlqcAHnCVim0VSUzbG7x2CBqEyFE9ELNeskHTgG2kUiIFAwaqr3eFUCF
NdzrC3L2CYRkNqnAdyVN0VeEirTP3pwA5OveTyfuHsrl2gKlPJ6WGYorch9OE89a
Rk5nd6BY3flkR3DLy0xA7wwSa6tbp5U5ggSFgZB4mWQVpAxpxB1YsSK9f0WYklzp
gwIDAQAB
-----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 389479734630672039795751290592168176662470
 . . . . . . . . [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 2024-01-09 02:00:04 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-08 02:00:03 +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.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 22532743698701194794915927639416303069756261445992241532832676607972003039232404166141933074972642159337455208028220390157184129695873549400157090600737427932825274778832433063251820203776843915907170622888402577620309706811374230765702485751983700200330786832655130447787475382757904386603952088956498896409046974623078502636455137169760477214887924032814177950089246188877695725086811704031155701340530696168640195595526504336280277206260660540802660654160796690619557948207108848529813782790073556289678196543335636707102097774915525352199217989192576477410500118442318407061272938443942126448380656147938391419267
 . . . . . . . . . . . . . . . . . . . . [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)
							39ad1fd2453293c996c8b1a1b9ce72e672e05e6f
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018cec29b3980000040300483046022100a7111b3c8e5d0d4131456083421bb93f73990680595aaf4dfaa4512fc8745297022100f4556eb33626fcc8a504666e4333a40f00e5504c1cfbfc3d30ee51b19ca1a4a800760029d03a1bb674aa711cd3035b6557c14f8aa78b4fe8389449eca453f944bd24680000018cec29b475000004030047304502200603654a1f7338da03dc0fb997f961eded24b8961194138b9ad32c61588f5ffa0221009b96e58d58af7059d42a25ab05155ede183f7c000da0ec980491fc00f4dc328a
 . . . . [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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