kingcollegeprep.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:93:3f:fd:c9:3a:6a:f7:47:75:90:02:64:37:05:65:b7:31 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=kingcollegeprep.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:93:3f:fd:c9:3a:6a:f7:47:75:90:02:64:37:05:65:b7:31
Serial Number (int): 398555710760651267839982883854531286120241
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: a2:7a:a6:4f:6f:5d:a5:9e:36:a4:2e:fd:cc:94:33:89:65:35:16:85
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): f2:a9:2c:01:61:da:08:13:69:f3:79:3b:56:02:f9:47:d2:8c:a3:e9
Fingerprint (sha256): 48:5d:d9:85:af:66:32:c5:d6:c3:b9:e4:9b:25:64:22:df:61:df:bb:24:fe:4b:67:21:68:99:40:ad:85:71:a0

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 kingcollegeprep.org

5

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for kingcollegeprep.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

admin.newkcp.org
kingcollegeprep.org
newkcp.org
www.kingcollegeprep.org
www.newkcp.org

Other certificates including the domain name kingcollegeprep.org

(limited to 100 certificates)
www.newkcp.org
www.newkcp.org
www.kingcollegeprep.org
www.kingcollegeprep.org
kingcollegeprep.org
kingcollegeprep.org
kingcollegeprep.org
kingcollegeprep.org
kingcollegeprep.org
www.kingcollegeprep.org
kingcollegeprep.org
kingcollegeprep.org
kingcollegeprep.org
www.newkcp.org
acrma8.org
www.kingcollegeprep.org
www.kingcollegeprep.org
www.kingcollegeprep.org
acrma8.org
kingcollegeprep.org
kingcollegeprep.org

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAl+DKOD93P8lqQf00s93E
Bkwu3nx7fFr3Ctksh0O79pit1jEeC997aUkpIVDYjP5MjWzzQoC/U0rd2mIEccUv
uuITfRL90/6uC3I0XIknqfln0CW43kkuhQ+6D4bY17fGxfE/CpiJeBNerdKvK6ZK
kZMPbAhYL5dESNl1N7FeK+21/76upOHRFpFbdIWTjuC5AFFiFlvGuP4kND2UV+YZ
3SToDVEjEKPUucU95dmbFxME/ydEqrTU+yAef5mtHNUt81tkj6Vy+XDotp54Pe+v
J3g1TxqQALPzpQfqpCMpIJDjJzUl2l63mt5rE8yAfy7FT95v5imKRwNWWrkvXT/G
twIDAQAB
-----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 398555710760651267839982883854531286120241
 . . . . . . . . [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 2019-11-06 11:02:16 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-04 11:02:16 +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 'kingcollegeprep.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 19172832091172103076248738337992263280326427231625941768640022937238410438981304651244863950815355947234909663083827714944781870080662218883382271254167489954447290547430548719984234408250721431961133274694119867411221242078117305491018999773106610411522300246412134999909184762820200433583284916266854238175481740411575206306190563885915825635795966813797949330156686581668965937011715584179756780302521689092994168435478955289367091743120728919940700806323132864708560639937150533814339808126235391651753015364869256183133206668466073864746780106557715461747174686945874956119750917506814462205364198705473702053559
 . . . . . . . . . . . . . . . . . . . . [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)
							a27aa64f6f5da59e36a42efdcc94338965351685
 . . . . . . . . . . . . . . . . [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 (94 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'admin.newkcp.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kingcollegeprep.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'newkcp.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.kingcollegeprep.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.newkcp.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 (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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016e40980b110000040300463044022016ef0d2fdc7e067d7d6d0ab588c24d942a2fc1864c2bce76db3bfe6d6225bed702205ee4c02e0e8524610603a8f8e1698cdd71aaddb7c22f19988cf0307056f4bebe0075006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016e40980b4500000403004630440220657acb33b3d0a44d57307e4ec2697e62382d3e983216d426a8527c4cd444fdf902203d01258f91b3589cb30358e0bcc38ded029ce0545610a06e211d73e574e97495
 . . . . [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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