kabuku.io

Issued by R3

About this certificate

This digital certificate with serial number 04:f6:31:8d:69:eb:ab:f0:57:ef:d3:ff:95:be:16:30:8c:c9 was issued on by Let's Encrypt.

This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=kabuku.io

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:f6:31:8d:69:eb:ab:f0:57:ef:d3:ff:95:be:16:30:8c:c9
Serial Number (int): 432224472423567201955377264087360294915273
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 9d:2b:78:6e:48:72:45:d8:b8:32:68:7e:58:a8:b1:e2:ef:4a:ad:e2
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 4c:c1:23:99:5f:ca:2f:9e:74:dd:1f:c1:3b:be:a9:c4:08:a8:67:56
Fingerprint (sha256): 1b:66:3c:4d:f6:98:31:6b:36:33:cc:81:62:90:80:b8:63:5c:6b:f8:37:21:9e:63:2d:a7:2c:1d:9f:ae:74:5b

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

Revocation information

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

Check the revocation status for certificate kabuku.io

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for kabuku.io

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

kabuku.io

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Certificate

The complete raw certificate details for kabuku.io in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuDHoKmemOntDAwOkMH7l
YGxeecQdY/VW0Wbs29rF3d0OSM9zJV4hyuupGpE8tLJwdB/3ozXSzItVk+dAVGEh
sh9B6GY7qWumVdnaEy0Njb0dC3rvyaIt2qiXG1NgX5yO3fpQ8RDxTU7DFxu6zOmf
ePOxBYsc+nbiEzftTTKQi0+uLz6zy9NW9ky+xzMAjsyfEKxShGFNsV/AEd92S6N7
aOg4BEeozRKl9TYgwn/eCjiNIQtoUn4dOK1D3RvoeJuD/Fftf01F4DON4Mcub8bh
294Ff5KG3hNxqQ3OeIhbhsyX33HX4kjBObYmgWZW7Hcz8g6h2+DNb6xQ0eO31eYH
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 432224472423567201955377264087360294915273
 . . . . . . . . [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 2024-04-14 20:43:56 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-13 20:43:55 +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 'kabuku.io'
 . . . . . . . . [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 23252458121916287637009857925690767308314844382824251711594418112998461714742409889271593489079582921546884747300616279412055661176802350003817761937002023281154719159742890910238853491954627822384902722561633626733100076948706394482209080666292702633522880518933931275403786737328360405641938354123656437109722826757010869792127673358761332476997896684892854260551124826924018154637472771072302365195163699309203687459666443923438987880686342651880053846959556206468438140590537975687193380110462803730545095463871219427835849276967891238727425138488095315583137306986430552947945241142504764166281570949141054752683
 . . . . . . . . . . . . . . . . . . . . [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)
							9d2b786e487245d8b832687e58a8b1e2ef4aade2
 . . . . . . . . . . . . . . . . [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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kabuku.io'
 . . . . . . . . . . . . . . . . [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)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018ede9122310000040300473045022022d85219c2509c394869b86762082a5f02db680218e19840d1944749b134c33d0221008e6f70d1d3608137ac5de832aee7512bf64bb7a8d09c4983726710d4285064900076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018ede9123490000040300473045022100fc8a5d7594f66b9ac5c698f78ffd910bfdb70e6a5edd89655910127cd4225c9202201348d2c50a3cb932d035f46ff217ac96c33376c2fcd7d456c1e63feb1378c885
 . . . . [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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