jkook.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:52:7c:6e:1d:dc:6d:77:b4:ec:92:24:93:87:18:8d:a4:a5 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): 03:52:7c:6e:1d:dc:6d:77:b4:ec:92:24:93:87:18:8d:a4:a5
Serial Number (int): 289405407912583415184817213287455437726885
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: f1:a9:85:26:a8:68:4e:26:08:72:42:0e:18:78:0b:9c:e6:a9:b6:8d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 05:7c:88:91:25:0a:fb:8c:60:5a:bf:48:48:91:3a:0c:2e:6b:4e:1f
Fingerprint (sha256): ad:3f:fb:0b:f0:b2:4f:ae:7e:3c:9b:f7:c4:9a:57:68:67:44:b0:39:8e:fc:ac:02:88:54:19:ff:c9:80:af:6e

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 289405407912583415184817213287455437726885
 . . . . . . . . [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 2019-09-19 01:13:30 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-18 01:13:30 +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 803940713869843263447451314718421270675321440909636032769194859478890267454989113664625054549469603651785218329952159345949575156891497272557772589154255713870968453852581748088541743529963447737718278969923157885675690892541671132703122812081545574148381342975439816697682318613767044629928421237322974693352307465576781320925195819280276251621209921661259096033986693670347418732577682646434483885086134046639251626463640463815647472395249861706567413219250895874843705179550192532280049565184552977310820700813830352015375522480345897810286093121425339430626053576723413140332736081449623725563170272042604513285431507549093591080976504848521381127870491345759262722844557994476677140138639582741539131943803670600380006952014914551916643809896364793271204102670414322511769358848108151613908361986382144796956903117748643293795140799376376335936945107586135440687602036166612016697790862113777280913616472040820925598397784904773291442336269504806459793474329549185994653091942217892431976461282176222501752139886709385181938234186333116093584272520981864280417302545804955325545379146847671135849824007196744048330968634629180522326764038848095899022435367466720956336617728149074058962349704787140273238555636236838018731471761
 . . . . . . . . . . . . . . . . . . . . [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)
							f1a98526a8684e260872420e18780b9ce6a9b68d
 . . . . . . . . . . . . . . . . [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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f2007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016d474bc489000004030048304602210088ea42ae43496efde7b03b01bb220b9614e94711f1c54c569c1d6a71da9163f802210084d1e2bb93e1d96e763fdc6824de7cfa3dc8330c1533276001b39c72828f1375007700e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016d474bc6790000040300483046022100c58290b756fba3304bdc125bb8a0f35be02295347a5485d6a3fbfdb0aedea974022100a796c3dd79a2f15628f8d5c0e1cc13437a44045483492143a78c5b6c87f4f1b7
 . . . . [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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