jkook.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:5d:48:77:eb:f7:03:55:28:e4:ed:29:31:cf:f1:6e:06:f3 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=jkook.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:5d:48:77:eb:f7:03:55:28:e4:ed:29:31:cf:f1:6e:06:f3
Serial Number (int): 293079445003887341035309984736673023264499
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 0f:b9:22:b1:21:c9:78:1b:95:87:46:a4:d8:19:e0:da:60:68:53:e0
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 98:28:ea:a3:c9:e9:25:b9:ce:a3:1a:60:1a:a8:bb:53:b5:92:1f:aa
Fingerprint (sha256): 2d:a6:0c:1f:6b:6e:1c:fe:80:70:45:a7:5f:08:fb:4f:1c:36:b2:2f:0d:94:7f:dc:fc:3a:1f:7d:bf:cf:5b:32

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 jkook.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for jkook.com

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

jkook.com

Other certificates including the domain name jkook.com

(limited to 100 certificates)
jkook.com
jkook.com
www.jkook.com
jbjyj.com
currencysignal.com
jkook.com
www.jkook.com
jkook.com
www.jkook.com

Certificate

The complete raw certificate details for jkook.com 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 293079445003887341035309984736673023264499
 . . . . . . . . [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 2019-05-17 05:43:49 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-15 05:43:49 +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 'jkook.com'
 . . . . . . . . [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 844948613209758172312601013508588201978150554543041098578674037101595145541986238125434522050700073962248245858839803224968410060550805776849083064337136155537569166832569441736049832056125883256994359878741784028283088160617156151095490425877152867959713999147427027638468694447019672409634519307405083360744654946723810419748502549038205711393917947209549155266006941592358600678196032813327006455546120265162828119638674876620353464917794990543796152959233500994679732237887348295715993804206224894032785352878725190055336607170209341418281492913202267758322430349489069353470270923958372673142241479317388502396945667856185836392133114818117522862633951315534539389375508738408301230540949828587245687217177765291417130459217261199881318492986991109542001334434010473282318349158164748217955959006289973172961737259231228734423575840007724389310060049061270606872077677113779047843015998269311050467911779206680077239789678462507193774659829009697364118982083010726178559607818347755568814955846054112133553104003343184259099501520083074380128801172143539584661532931187327187949544162281244389245432630427940159717663718286220746751850400005145784775726822564642734141350891481002646719997392436266738310869544985779371535210559
 . . . . . . . . . . . . . . . . . . . . [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)
							0fb922b121c9781b958746a4d819e0da606853e0
 . . . . . . . . . . . . . . . . [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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'jkook.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 (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)
							00ef007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016ac488532000000403004730450220617d2fd7f8a60ede4222de61ccaa1cdf0109ff78d32ecc3613c300bc27f55dd1022100a921e99655c969da6b568f1cd8ed62f9f5c9f513c7460930396cfa2c3e5d49c300750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016ac48851a9000004030046304402207ff3c3f31640a4fbf51fc0113bf2227ce10ac47900cb415ae1b92548eed88cc4022007f6109ff14e0cd53c12c43c0f54ab3daee4340fbf8ab6339d43c836cc2ac4fd
 . . . . [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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