mail.lknc.org

Issued by R3

About this certificate

This digital certificate with serial number 04:d5:b2:1a:4c:b1:e3:01:a8:02:e1:72:a2:56:64:c4:47:c8 was issued on by Let's Encrypt.

With 5 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=mail.lknc.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:d5:b2:1a:4c:b1:e3:01:a8:02:e1:72:a2:56:64:c4:47:c8
Serial Number (int): 421166027019725685977207321597555450857416
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 8d:f7:44:52:b4:23:dd:27:af:81:14:06:9e:4c:8c:ee:1b:9e:11:db
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 03:6b:6d:e0:cf:e9:e8:03:08:26:d0:fa:e3:b6:b1:d6:e3:58:0d:9c
Fingerprint (sha256): 0b:84:a3:aa:89:0b:23:19:e6:8d:22:0d:3e:cb:22:16:4e:be:f3:82:c6:84:e7:cb:2a:02:95:d9:bd:6d:06:61

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

Revocation information

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

Check the revocation status for certificate mail.lknc.org

5

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.lknc.org

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

cpanel.lknc.org
lknc.org
mail.lknc.org
webdisk.lknc.org
www.lknc.org

Other certificates including the domain name lknc.org

(limited to 100 certificates)
*.lknc.org
admin.ascensionoakpark.com
mail.lknc.org
lknc.org
admin.ascensionoakpark.com
admin.bme.zcs.k12.in.us
lknc.org
www.lacpacademy.org
www.lknc.org
*.lknc.org
admin.mes.mtsd-vt.org
school.ascensionoakpark.com
admin.ascensionoakpark.com
admin.ascensionoakpark.com
lacpacademy.org
admin.ascensionoakpark.com
*.lknc.org
admin.ascensionoakpark.com
*.lknc.org
www.ascensionoakpark.com
admin.ascensionoakpark.com
www.nstaracademy.org
admin.ascensionoakpark.com
admin.bridges.fmsd.org
admin.ascensionoakpark.com
*.lknc.org
admin.tekoacharterschool.org

Certificate

The complete raw certificate details for mail.lknc.org in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9KVzsdj4PMlpKc/y2kNf
JVfiyISpr8ah6GqJzM5m0bb/auRHYhcLaBIPUOKgImOxHdrUOUIqVK/SiaCjPS7L
GERZ1lifrc+nb3WvFUsCNFW2+TVtOQFfv0ViW2lJyrAfy5wQ6y/zrcSZuUYIZtpm
QJI7gyrv0873dRndoFOq1EpAO06Cb7tGofJ5KsjelIu1qDtLKbV5YAOEanxIJsuo
eFZs40j4WzURAvmdhqanh9FrQ/PG/lgZ+byvWdTkCnmReviu0ZKB5N8jxjSBJnBo
X/72KHNS4N6zSY7z+lHQvqvwMA9phg/QcfgZ6yv54fwAhtVk0gbGOa2T8ccxcxLa
jQIDAQAB
-----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 421166027019725685977207321597555450857416
 . . . . . . . . [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 2023-06-22 16:16:53 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-09-20 16:16:52 +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 'mail.lknc.org'
 . . . . . . . . [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 30883733800431788379106307863235084383515378665649426957637479902299628808131704976709874264385453357269663297788431274358858332633729114352697783621110503329781601833796635134008521415427569597301671384946767384555301862537646506612956430525830736113427655081429820556379061281559032770840083502269052042710226799373302089464165611364736020077317596199507318784002445629893699159956573962129491563695280946797015371861489972316146360375110069678322159577366631383037256094452391766038040193045313752938256558522337965977635862475985521084785013077769489290850402653315372483737282430846978129935341170150229427804813
 . . . . . . . . . . . . . . . . . . . . [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)
							8df74452b423dd27af8114069e4c8cee1b9e11db
 . . . . . . . . . . . . . . . . [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 (76 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpanel.lknc.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'lknc.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.lknc.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webdisk.lknc.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.lknc.org'
 . . . . . . . . . . . . . . . . [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)
							00ef007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000188e41be79b0000040300473045022100bbefc1c875e473d84318f9f57170c14a224266c3bdfe8dd7578c0e14010bc30202203b0f16416e7342280751c3403481a465bbdb7d30b2e0230e7e7953fd7452a084007500adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a00000188e41be7fe000004030046304402204f754a9a41ef094a623b93a873e10844e8e84ed8c2c4c8f38a29cab9ab35bc540220307286795c212ecdd423e4a388c2efb1046a624accca0ccf4e0874c79f5c7139
 . . . . [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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