michellekong.co

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:78:0e:5c:f8:10:0c:eb:6d:1a:83:3e:85:a3:7a:17:55:64 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=michellekong.co

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:78:0e:5c:f8:10:0c:eb:6d:1a:83:3e:85:a3:7a:17:55:64
Serial Number (int): 302189833740354560320594108744924636075364
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c8:e8:87:92:26:3d:51:70:54:30:f5:e1:e1:15:4e:d2:62:41:ab:56
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 2a:6e:7e:13:29:9b:ae:0d:c3:57:fb:a8:5d:b5:5a:84:41:e0:fb:5d
Fingerprint (sha256): 00:01:08:d6:7a:8f:3a:3d:af:d8:f7:59:9e:08:85:48:c4:7b:f9:47:8c:e9:cc:29:e7:b6:fd:15:82:d0:3d:5b

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 michellekong.co

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for michellekong.co

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

michellekong.co

Other certificates including the domain name michellekong.co

(limited to 100 certificates)
michellekong.co
michellekong.co
michellekong.co
michellekong.co
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michellekong.co
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michellekong.co
michellekong.co
michellekong.co
michellekong.co
michellekong.co
michellekong.co
michellekong.co
michellekong.co
michellekong.co
michellekong.co
michellekong.co
michellekong.co
michellekong.co
michellekong.co
michellekong.co
michellekong.co
michellekong.co

Certificate

The complete raw certificate details for michellekong.co in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoRrs6ENJ0g3fhXZrj65d
R2g76NrMSNy4v/dZcfQjpoIO/eRHpzG8FRJ5wz8kEGnnH7RA2qMk+ss9m1dQZIxS
Uo2HYJ/kSDJz+R1nuKN5ZwRiSf+hplePZw5tLT3F+5QCBEJH3+2gbziZrKkvKBBq
2vP6HebL2dY8ufRibyEPwnOqnPFrtLbU9ugPHUnVstySe98aD96guBD9fNrywBn7
GkRLRZofvVyumdKXJRHIPc5QSO7VFGscfoum4n+0tRvs6eAwOFrXN22JXyEgHQ21
xcUYLeBeTq8kBaiePdH4LUSYt0yD78nCWdXKSvQx9T8c6w57cAj+Ht64A6dSevPD
KQIDAQAB
-----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 302189833740354560320594108744924636075364
 . . . . . . . . [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 2018-04-15 19:28:43 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-07-14 19:28:43 +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 'michellekong.co'
 . . . . . . . . [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 20337644518525058112798489560279394521320312282532199171221138790336389102894426560350148192907423598348837446986541789369084978623111017860879429196990019882376354968574661163545612898539300723824396639461036025010651907268042629101690768549261862562348251145369752124678217829159866826260395338527551712083293598532893687523185581496425199788751760714369673279583765881400913792195080462263041569521354885842273761853461350011410735991687472084233943607678221806635056452371444803851671853135623069028795046382966370337198441692896592529537430320374308779724789463074274357843683877958504775642846585077686573712169
 . . . . . . . . . . . . . . . . . . . . [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)
							c8e88792263d51705430f5e1e1154ed26241ab56
 . . . . . . . . . . . . . . . . [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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'michellekong.co'
 . . . . . . . . . . . . . . . . [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 (246 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 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . . . . . . . . . . . . . [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)
							00f0007600db74afeecb29ecb1feca3e716d2ce5b9aabb36f7847183c75d9d4f37b61fbf6400000162cafee05a0000040300473045022073dfe070f8ff2ba774dd9ba26b350bc670535815457dff0ffe0a9c674710650a022100b915fa0850b0d35ae7521f7c840750ad85918434bc0970b2ba555d9e2849e813007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000162cafee06c0000040300473045022100aa19db68c14c1e47f7e502a6feb1f87b98d715680baadc1fb3efd832126ed69b02205387831af36a46459476eda792aa218813e22bf941bd9429cf20e3fb0b2501d5
 . . . . [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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