kabuku.io

Issued by R3

About this certificate

This digital certificate with serial number 03:46:d4:ed:8f:16:33:bc:67:be:9d:38:85:8a:2f:0c:b2:d8 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=kabuku.io

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:46:d4:ed:8f:16:33:bc:67:be:9d:38:85:8a:2f:0c:b2:d8
Serial Number (int): 285439653291351911702489110113805392458456
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 88:f2:a7:42:53:5c:18:e1:b6:a2:34:d5:5c:30:34:c7:2a:78:f6:87
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 12:55:1c:0b:be:99:91:d6:24:13:2a:72:78:8f:af:9b:85:15:79:2d
Fingerprint (sha256): 50:8d:2a:23:33:e6:e7:2f:df:16:ee:39:33:7e:4e:20:7b:1b:a1:c4:d1:06:ef:9e:19:5b:ee:da:43:59:0b:cb

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2AJg0l5uihz+M2mMn9u7
z+HWgSgbcK3TL7lPqKHwGIx7xDyFoQvlpn+QzoeLigWD1O9BrVEv48VxRzQbOsvv
DwyB4Eb6W/FqgVbs6kz5MrJFY3kJnr/pFZeBSLSdWFez9UA1d5+Mp0XAxgenOad6
s1CYc+NrN1mIDEL+5/ENO1Wb7RGx8aL3RZYMuHplsa4KkDBhwAJVVpshhxhwZ6SA
b9rhiF0SOQRz8jtsPVTqWC77zZbmQ90jWtx4+9fRV7ueMefzgaZWp0mvtAhawJZZ
vWWmEvxTjiiUwv1thO3eTANiAqa4AgfFqD5aZmF6wqFoQOZ+ovdMggxo0NCIX6/N
5wIDAQAB
-----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 285439653291351911702489110113805392458456
 . . . . . . . . [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 2023-06-18 22:56:35 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-09-16 22:56:34 +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 27268646611715561108233353682936515661549008640320891987430319128906396627468793026731902439336575093492449049860089085516472802627582467148430525339161122916009114939923680332754877896355397454507172464171406392369296297319666022923341263756943630491852403268096846360619705049749831339050845635185504457431655076784083144395034264146008642502908874653216652595682209858359078169819409842281980411190006026353545181771066736926496452632052140184496824093303290543432065211753796156642380655131972478455105715709356863749899743266953453912988418920263413270535847572456418389433646087552805844146863809127006797286887
 . . . . . . . . . . . . . . . . . . . . [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)
							88f2a742535c18e1b6a234d55c3034c72a78f687
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000188d0f064a800000403004630440220303c799e4f5252e8487fd70414d389488e382f7ed5e3fb9cad1bc26a31d5bb42022002fc7c3993564c5f3ed65664bd7d6b2532ed6b7c0c92d65cf3949fc92a163639007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a00000188d0f064f8000004030047304502210090bb25b025a879a7f77a66628d1819185c2ef63f7082c33429dc2672384f1f9102207b960bed42b9098e3e4f2ae87fc2cea5a66d195cd0270575f444d8a3adbff327
 . . . . [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)
		0076ef8832a831833b4c4486255d38c2772b60f6d5478b50521115a0a0f8712f2b71d7f1905bd77a766f6168c55365f61070b33e88c4ea7d86954809022d11bf43630a5797d7c3814a48b4eb46589656b52fcd7ee6a5c45b33d1d7430869c3e56a0b06fceff6d984e5863332b2ef120e7c39c38216e313eb426bb0db21734c71e11a68a0ec7cbe2183c34970f26b452f99927b5c9e44d227bb211c3b479fc25f7a596bf3b6974f18178bfa90ffd95b014e421e79065016bb0d44590860736f84531cd2903b44bd71f19663fb2c674cb0bc429ccedc7419315cd124346499c51e5249e2258311aaa6be3537fcd9b5270439662833eaf14a08dd47a60bc0f243aeb3