kantorkuu.com

Issued by R3

About this certificate

This digital certificate with serial number 03:67:23:c1:a6:13:ac:8d:b1:43:28:9c:87:59:8a:6e:47:db 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:
  • 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=kantorkuu.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:67:23:c1:a6:13:ac:8d:b1:43:28:9c:87:59:8a:6e:47:db
Serial Number (int): 296433470049722302965159098193569079248859
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 00:75:76:ae:78:6c:43:ef:22:b2:81:fd:c3:aa:2e:af:96:63:f1:7c
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 0f:8f:e6:0d:71:fd:1a:c5:d0:e4:c0:2a:f2:38:cd:d9:e0:15:2c:52
Fingerprint (sha256): 67:c1:b0:df:c7:cd:a0:c6:a6:e2:15:84:51:18:b7:62:7d:58:b5:b0:79:93:17:c2:b3:c4:4f:62:7f:00:ec:73

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

Revocation information

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

Check the revocation status for certificate kantorkuu.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for kantorkuu.com

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

kantorkuu.com

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Certificate

The complete raw certificate details for kantorkuu.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4sqWAFvTdHcwZB8auvE/
4G9oJ2UpUE/rgc7aj/JN7jJZ5bisL54ptBrCQcw2GKsVr7t3B2JcqDC6HON4v5g3
juRyYjExcNf73ZaeYUCSXW8U6j81x2XnpZUiqhLGNLIsWxIo8WusUSwQdRDJjgEn
0u5mJqdaAGUceOCvxLdJRRPRr3cb/kT8p9iTjB289s052auUkYoOlA4/xtOULu6z
LBaSh5a0b+Xdub5UAuK8t7G8OS4NjbFrbHqfKt6+Yzys8oh5k15OoNtZLCCwfpdV
0mqAssweoei1kuQzNRQO+NPcd5sykNt4C/gSla2ZohlD/QX0ph6v+/HCkEl/gefb
UwIDAQAB
-----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 296433470049722302965159098193569079248859
 . . . . . . . . [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 2023-11-13 21:20:49 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-11 21:20:48 +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 'kantorkuu.com'
 . . . . . . . . [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 28629755774090555018368485456805736132553547607035691197711467582276993948781940085940803415773173889113116232385600212184484337995546202202814176312579854896314212006783169826405418291447345100915523070220553159916339112034956153621587233699092620501033495543095871705320938539108332235614163119982957962231765923636300698650435144045832456527114266137232897931538835115958228355770422745914312740533949644237698583088524274668418831012992479119217969575472513705358168951094952267257604671461810372759807023604784314659625394807867576371206187950404441225178326115085472470045747506749556600648873813630305350179667
 . . . . . . . . . . . . . . . . . . . . [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)
							007576ae786c43ef22b281fdc3aa2eaf9663f17c
 . . . . . . . . . . . . . . . . [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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kantorkuu.com'
 . . . . . . . . . . . . . . . . [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)
							00ef0076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018bcac5e9f30000040300473045022043d329cbf1ebd486a6c410bf735b88936ab9284515b74cba7640e40adb43ffab022100af6a32087067df43129f880feef13c2fcbbe6462119d399fec4cc101a3f8ed28007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018bcac5ea6d000004030046304402202a6c9a6e71b8ff04c2f2d7254be21536992beee11ac85a2317e149c1418c964502206f53e83c6644364bbbee8cf9ad823549fbd80c145bb21f26478094f52e451812
 . . . . [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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