willy.kim

Issued by R3

About this certificate

This digital certificate with serial number 04:08:51:53:4d:54:70:b6:64:ec:0b:12:00:fe:12:58:d5:5e was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=willy.kim

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:08:51:53:4d:54:70:b6:64:ec:0b:12:00:fe:12:58:d5:5e
Serial Number (int): 351279502659141918825167836374201043309918
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 58:c9:b2:aa:68:e6:a5:48:cc:d8:2b:e8:42:b2:bf:7f:be:45:66:68
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ce:fb:7b:db:78:b4:6e:ca:ec:af:7a:09:c8:bc:64:e7:60:5c:d0:61
Fingerprint (sha256): a5:ef:10:c6:8c:c3:bd:8a:48:52:16:7a:10:3c:f6:40:58:d5:11:7e:1c:a2:79:b8:38:d0:a3:5e:09:96:bc:57

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate willy.kim

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for willy.kim

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

willy.kim
www.willy.kim

Other certificates including the domain name willy.kim

(limited to 100 certificates)

Certificate

The complete raw certificate details for willy.kim in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmJhY6+zLtneB6HAOhyIx
79JjY2cBnJBOEBaUnPUZtgUwVraCQWLUMQt5wNThwTYTH1xwFiHQHFMTjDwMjF0V
R/jHlClBj8Ljsim2G3eNqHPq2GORN9ImUGGhBL36diIGpaA93AdLj7cGJLYXki7J
rtwWLCzDbJQjLZ+d1EDamCY9Z4c3tkyko+5SMeOHLO047nCltZh9w4eW+y5FbKJs
JP9jQrbkfNRfa5ZzJHoMpYlohvFxA3lTDogcblql8IAMZg2koiC1uQkcADWPPImn
ioxOV/0eKBk6Y9BWA+n1Mg03QD+akHEz19e0fkFItAWqjvdlNoeHZsr/bYND70is
jQIDAQAB
-----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 351279502659141918825167836374201043309918
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-07 06:12:57 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-08-05 06:12:56 +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 'willy.kim'
 . . . . . . . . [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 19263347633048637904692409058500491957070341204876476874983828893421060284081528266002883381108131736172778098833779461216977020764112095699108764643897576175258787597583012761752311375605925721305183168406526961070832150690960029045816785206624063972810366922014338772688300000899628727731593792290148494731204999571886928243242555312269941438653443904869106920591101460150914693266258075324063200561571344232505460652570727187152655534343387663918531899742417430524850684012711339995500442655256218389876579261753188956877546899194731245476235443203379388615826237123766274333248477776287536702101206849220837420173
 . . . . . . . . . . . . . . . . . . . . [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)
							58c9b2aa68e6a548ccd82be842b2bf7fbe456668
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'willy.kim'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.willy.kim'
 . . . . . . . . . . . . . . . . [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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e0000018f51e5fcbf0000040300473045022100a864b9770be94b019176256f4546a1e519c05bb7c0de35a50ad233206836efa702207779dd584261d5f6ce07f4db713f4eefc7881fa60ce70adcb344342959290087007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018f51e5fcc30000040300473045022100e16b045512798cb789088a5d5ec193f4b0a53494c2f415639adcb83a2d79c904022015b61917bfdc7d9e579ad2d78c1aa01c57f8a4ec751ec0d2a1b051fbe5a389d0
 . . . . [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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