jkook.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:4d:97:96:11:1d:36:8f:0c:86:7f:2a:19:56:a2:58:14:f6 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): 03:4d:97:96:11:1d:36:8f:0c:86:7f:2a:19:56:a2:58:14:f6
Serial Number (int): 287740092667200769248568342907959564047606
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 51:1e:fb:04:ae:09:c1:b7:75:92:a1:66:17:c5:0d:f7:e7:89:23:7f
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 94:a2:c9:73:e1:12:39:79:64:7b:68:e1:80:d3:86:ed:71:8e:48:01
Fingerprint (sha256): 2c:80:04:76:77:94:ae:41:3d:ed:39:91:43:48:d8:7b:f2:cd:12:f0:2e:e2:fd:46:03:76:52:8a:11:7a:e5:1d

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 287740092667200769248568342907959564047606
 . . . . . . . . [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 2019-07-17 11:25:05 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-15 11:25:05 +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 809483122074395334677905938193553941051727079641726951268626051161733466111594876418509953301474008471618518343735120014009314394678600590274553101672419199054147884775367889469688434372457520604538261873642230400318922987438393269299745182513961695556030752324316501797730234304173601755999954275086393249928876125607739899064174325911071289391145887630592673194556411572662475582739070541883793018542138775555990134386177568732495220023821683233216545325025004070529623858947926256596630592437194597056735372322618659570280029750624765532923005882250471772845719034330959997242736883005690090630843257469005188364639537348786832901669369800030523675824043603045016438439851042184205094478996757772758794441844866224126116331621486634990585430623304029638643868565934921364017310746354579412200923730102200366723611000487806962048977230879137097061904947307772628643886173637072827975331064852717295268293542854546916559251011890676614090815504176649791360808785833110253308288160170224823742107287492528697274190475436555743744130775299670369599567579813292618569501362505177028944213901544678339724336563512602754608864736627421662528300813861758989063953838213854497189446067710994119835940388343281668726562597386171252274287833
 . . . . . . . . . . . . . . . . . . . . [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)
							511efb04ae09c1b77592a16617c50df7e789237f
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016bffe4aedb0000040300463044022029dfbdea5bf50916d04ebf50735d3351ad9a44751e7125c0e40fb692a67ee84402204d0901f20c98f3d1dce864d8807b1ce983be0e0e3c46c97d1b35c41ba648ffec00770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016bffe4aeed000004030048304602210083cf9e90db51df37ce6238a056eb9b4e9e0538b17fd631bd301ccf8c3e24a6a9022100f64d549aec56a26369e42ca133f3c84a630fe7e8bd2d444af2aedd1484d0b8a5
 . . . . [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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