k12.biz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:83:58:d8:62:af:25:95:ef:51:3a:c9:aa:e2:9b:b5:ed:b4 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): 03:83:58:d8:62:af:25:95:ef:51:3a:c9:aa:e2:9b:b5:ed:b4
Serial Number (int): 306031943463226896576471554443292519558580
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: df:22:21:c8:2c:d1:b3:52:05:33:f9:ac:6e:6d:f6:cf:b5:38:08:43
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 2b:57:9b:f9:d9:4a:7b:a5:e7:59:02:85:da:07:da:8e:1f:18:f3:23
Fingerprint (sha256): 50:b3:41:c2:a4:81:51:b0:47:d7:44:3a:84:b7:bf:2d:e4:a0:f2:4c:da:37:47:5f:c6:e3:7d:c7:e6:85:e8:c5

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-----
MIIGRjCCBS6gAwIBAgISA4NY2GKvJZXvUTrJquKbte20MA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAxMTYwNjM0NTdaFw0y
MDA0MTUwNjM0NTdaMBIxEDAOBgNVBAMTB2sxMi5iaXowggIiMA0GCSqGSIb3DQEB
AQUAA4ICDwAwggIKAoICAQDlw6GF/CRrxnJFAxwzs3JKL5VFL9xmI/uFf2HRTYn2
LVvk1HCoOXVcgkmRPwxuUdEKi8bl5AaApuq1NW3//47FxjCV8ojf+p1HF9FeB321
SDj580tc4g5vmZPVuBVIkRTG3JBtxhNEYhDgUqQz9wBIARf7Z6F2Qk1JTID4za2m
yJcpHonwcEq5eryQwZDPb/DAhHmPw/fHufdSftzMneuEGqfbBLIe5UG59HTPiqFH
Ia/OMpqgwPeuI+mJ+cKoqT1SHTRhqsDyJVtRr2AJrYZvNBfytsmax4BiAM7dphgg
Zv/1PgAPC8oB3Nk00LuvUL/DfJMVfbJb+QYs3aWqc0g2HaDijPRH82GO1RKsZh96
Rw8cIqVV6pF4tBlte5HyNprBcDeYUXhOeCHPO9bpE/PW7iEqXQ8u1y7bupeePirk
K6gtSh6ftBXKxD0yZOA7Dnns2xN3EBH2HQVq3qXjkYk9HQe4Dayqx0jk+TogMFXr
wQt4nVReE2jaRdL/ELhHkDB5XYxg0reVUyx+IJQ9g9a30NwDogTvCsMlDZ0tKt5P
Lb3jQVA1i/ljM7fqYglgmZGlyVKsH9+4AqqABuLRU59TjPqxCnejcTtOgH2Pc6lJ
g0mYP7S9ScmNWZTswZPBSrb5VGZEnqYhEzGUhSPpdpow6BPlPUeqal4CkqhukkqU
cQIDAQABo4ICXDCCAlgwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUF
BwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBTfIiHILNGzUgUz
+axubfbPtTgIQzAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggr
BgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRz
ZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRz
ZW5jcnlwdC5vcmcvMBIGA1UdEQQLMAmCB2sxMi5iaXowTAYDVR0gBEUwQzAIBgZn
gQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5s
ZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHyAPAAdQBep3P531bA
57U2SH3QSeAyepGaDIShEhKEGHWWgXFFWAAAAW+tRtLFAAAEAwBGMEQCIEv1MOuB
59mDhSrSOjsnxAvB9pBbJFNtixb4DqVIdalOAiAdWWSEDxWoo2b9wlCiGhXoM1Fs
S44iE1w6sll0UpgiOgB3ALIeBcyLos2KIE6HZvkruYolIGdr2vpw57JJUy3vi5Be
AAABb61G0rAAAAQDAEgwRgIhAIWJbI7wpeZTjHAG5RklYGpsMq8HgE8x+NocmNWq
97WAAiEAqzDq3bFZAdABYmep5b74wzA2GEBMcxhu9qro2FgnzycwDQYJKoZIhvcN
AQELBQADggEBAGI+8Z1aLST28EG9oXXijm8SYceCujYHlJbCBC932RBx5YAMyBZ2
Ai6WnX2T5/KfEb+iBRxGOKuFrJWPnmUONrTGnqbf9o8el09s4ipkf+6opZIgMcqJ
Dd66hYmQp3KwYe7j4l9LDydXDVhAxZhwsmrFMqPLoPCATRBzGImAq6pRAnCRURbF
B3MqTp8bLiWD7nmtN/t5aR8giZtfZG+9mKz8M/8iqvbg14WdCuJzpfTRtRQudr0e
33MegtHqKwGfs9wnN9YjeOX+QT7yF8ffA9iPRomaAufx21vhNWaLo4y5Vg9tKe7I
pqMjbDNUzvuLJoMwzE0fqgVIS0YIOQPkBYI=
-----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 306031943463226896576471554443292519558580
 . . . . . . . . [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 2020-01-16 06:34:57 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-15 06:34:57 +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 937356087856044235399922658929825984800888557522247728430758360580968920430312388280862855464333331964158245166713535616781027311818668936245438333637718664794717786258080371888989495266455691588873522502542826151439384191537604034212329839539533682728493249935580341726327060208357586669747754311643337834686224195748426981864490831407261181983618866521793894341107806275831582920111031506582497030726916850892105205615031940236798849092849028331502374560882554470752854165304510750609703693439435809919299693735628174884776780913549409369663797485297023705824381907728723010590219073958375881896181595216799489763999408847102793464474251138231960590530133159223059137049852879564754336578873904636706203161921303887954382080476331986923873888993432414385520941207610400663799776932584028460013504526716725180179391404105386479670243658256476569960023461042661864311808677959959867187659239020676668464056616033689739650767681351628111120520444819775472984707175545123956305286308766205186617597618453710372861804309336162019695879381970390896032420143487847613274101332184706479774768890858951752309853378215511670482250109996688764487743979715549001709540561028908986616004183747073083438573072002749200497831916323328925769569393
 . . . . . . . . . . . . . . . . . . . . [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)
							df2221c82cd1b3520533f9ac6e6df6cfb5380843
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016fad46d2c5000004030046304402204bf530eb81e7d983852ad23a3b27c40bc1f6905b24536d8b16f80ea54875a94e02201d5964840f15a8a366fdc250a21a15e833516c4b8e22135c3ab259745298223a007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016fad46d2b0000004030048304602210085896c8ef0a5e6538c7006e51925606a6c32af07804f31f8da1c98d5aaf7b580022100ab30eaddb15901d0016267a9e5bef8c3303618404c73186ef6aae8d85827cf27
 . . . . [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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