k12.biz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:eb:68:0c:49:ab:2c:38:67:38:97:9c:a4:90:9a:f5:63:ef 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=k12.biz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:eb:68:0c:49:ab:2c:38:67:38:97:9c:a4:90:9a:f5:63:ef
Serial Number (int): 341441517535002814906715140024629923767279
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 3e:84:ce:18:49:50:3e:55:4c:d3:11:b8:e4:07:25:f0:9f:3f:a3:bf
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): fe:10:8f:d7:95:a0:62:90:e7:da:fc:b4:dc:7c:d8:f1:42:8d:60:4d
Fingerprint (sha256): e2:66:f1:c9:11:e9:4e:ea:fc:3c:1b:07:4c:01:62:a5:8b:63:b3:2b:55:54:04:ea:4c:49:87:ea:79:9e:08:42

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate k12.biz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for k12.biz

Public Key Algorithm

RSA

Key Size

4096

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

k12.biz

Other certificates including the domain name k12.biz

(limited to 100 certificates)
k12.biz
www.organicmedicalcbdoil.directory
k12.biz
k12.biz
www.k12.biz
k12.biz
www.k12.biz
myautodeals.city

Certificate

The complete raw certificate details for k12.biz in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 341441517535002814906715140024629923767279
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-10 23:56:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-08 23:56:00 +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 'k12.biz'
 . . . . . . . . [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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 878921060528195991403439320651963084295852278795816738485129043872372240929327960427458641170381512913559880185234929411143584191076667031003617498372894216693439430839135516947411340655754655954585072018077725286491688156078219926885682228083846502097050066155382098808436479778751513346533961436748431651855303925122592187392281826853457749706201979864392327041197290154532915823715046063217443645837630809903334471586234682097986629692800626242349213323175215300633609257340563676233659794792130506773794322975459105220814346964540112548815685542643131678602750593038427889450479138372205551917446952885669734628919997447640458548054625831064601728478398189637651909354701434585652707745980493705704096750253901892926212492254424078792773769841870399987010409664185574991725169289444142686061302960996367904828970010700696963710300370740627599917943730720797912700791844199616450242070039321910528463245610239056483771432603181295226562397807521626923222086146570740953223609146074359238189556326541592690723411560873849313174009846235600988785553491266897076571679644113441819944270108620344164937617925762681503404245088335294491658759021765051081107145585322463989154334821356546769132241238882780619388296917667969445822270117
 . . . . . . . . . . . . . . . . . . . . [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)
							3e84ce1849503e554cd311b8e40725f09f3fa3bf
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (11 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'k12.biz'
 . . . . . . . . . . . . . . . . [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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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)
							00ef007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016e57f5da340000040300463044022038ed0e119d63f56cfc190e7ce5dbb5603ebae03610eb341d94c2aab9a4369a4b02205862e1b8e0af6ff6d7d6f27bf70f9255c3b7d57cfa2e52825de6a3503c8179d200760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016e57f5da55000004030047304502204ed1ae7004139267d56f7cc0bff2e5938e1054bdf69a760f8f1cfcaec628922e022100fb6140a216b10f146c4d303854b9481ae07c406826965a34509daa064836e492
 . . . . [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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