kosonk12.org

Issued by R3

About this certificate

This digital certificate with serial number 04:15:73:75:a6:1a:d6:21:e6:5b:87:ed:27:77:a4:7f:3c:fe was issued on by Let's Encrypt.

With 9 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=kosonk12.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:15:73:75:a6:1a:d6:21:e6:5b:87:ed:27:77:a4:7f:3c:fe
Serial Number (int): 355748545519634605425477658225231647423742
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: d7:80:1a:00:5c:37:fa:03:36:f1:cc:75:0e:d6:86:43:67:78:85:b7
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): a7:99:9f:71:cb:6f:90:aa:cc:22:cc:c8:d8:60:7c:c3:78:95:39:6f
Fingerprint (sha256): 98:1f:c5:e3:ee:51:27:59:c5:f4:bb:f0:ae:1d:25:d6:97:e3:1a:3a:20:fe:4c:25:b7:42:1f:fc:be:18:2e:18

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

Revocation information

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

Check the revocation status for certificate kosonk12.org

9

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for kosonk12.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

1849californiarepublic.com
bannerexchangeservice.com
coolingtowersforsale.com
expressmigration.com
felgus.com
kosonk12.org
kultovar.com
mepublic.statenationals.us.photographymagazine.in
worldwidemunitions.com.bljack.com

Other certificates including the domain name kosonk12.org

(limited to 100 certificates)
verifhigh.com.kosonk12.org
kosonk12.org
8bitaudio.com.adeenah.ca
kosonk12.org
t-t.co.za
leaselock.ca
kosonk12.org
rxsugar.de
kosonk12.org
cabopools.com.kosonk12.org
kosonk12.org
usc.mba

Certificate

The complete raw certificate details for kosonk12.org in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAykLukrPVlUO9LL3Rkr/C
Mo7mJj/4+LRakV4QvFBJQfJOjvdvYcPns5esIJLTXY8qgrRqsbXgLPkLqVMLfvYv
H/O7qW15t6qvf45ua5i37q57gfBD6s2LgKXvOvpZCoT3YW+IkILRi0UkohSs+rF9
xa5I4KhuseJrBwizZEeZtJP2aff57+hyfHxuemt0BP6NJpTj11CmdSMsDehuwnTy
imr3yXFYRcPPl/9M+F/qu7e02sagOv0P+WdexHcuLmQwXp0ygGA53xVWWblCGkDx
FUnicIS7XeR9H24qxbwmjCiToN+8l17UFALE9AzB/RqObp4ysLpVXYjV/rvhvi9A
PwIDAQAB
-----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 355748545519634605425477658225231647423742
 . . . . . . . . [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 2023-12-15 18:19:54 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-14 18:19:53 +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 'kosonk12.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 25533142965982227439348508357763788518328785750359442686016432717298161495184559642446301386454223583559110335337097417629745199044681854789786728469434661014217052624717593649210537011691949631899461096881216287656238689300032631743941361047288246573964069235126754544246829672240287482968029509141750528944915742562279664371118936993199554547175792092359380268267410427934488171567167243825593531531796748917062367399870426184857963193760308446686742643810731666865156446024826366718746615774786983136376262918022505515914806415145973979581771340156532088677577570352298774448847948712973675678284416866644439023679
 . . . . . . . . . . . . . . . . . . . . [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)
							d7801a005c37fa0336f1cc750ed68643677885b7
 . . . . . . . . . . . . . . . . [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 (232 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '1849californiarepublic.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'bannerexchangeservice.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'coolingtowersforsale.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'expressmigration.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'felgus.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kosonk12.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kultovar.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mepublic.statenationals.us.photographymagazine.in'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'worldwidemunitions.com.bljack.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c6eebc4e40000040300463044022077f5ae6851808437c40e6c9018662104daf72ce7071ccbed3ac508f901a2243b022061b0f413ccab02c746901097691482a1ed46dcea15ef85dd7668cfe405495fdc0077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018c6eebc4dd0000040300483046022100e24910bef1025211a908bf9b433051eba866c097f03f818dc59636dbff57e5b9022100e8b16929d3b4fe6dad18418bd8ac2f470f71e4ca1200de81b5c8cf6023fe3da5
 . . . . [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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