1011.co.kr

Issued by R3

About this certificate

This digital certificate with serial number 04:8c:cf:85:b0:f4:c9:bf:69:f8:66:71:90:73:ec:5e:02:4f 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:
  • 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=1011.co.kr

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:8c:cf:85:b0:f4:c9:bf:69:f8:66:71:90:73:ec:5e:02:4f
Serial Number (int): 396364519455680233977544510480279530242639
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 16:8c:bd:b1:6b:73:96:0c:ea:dc:d3:67:3f:2e:cb:91:ba:97:c3:02
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): e3:90:53:bd:17:f8:27:76:b0:32:26:d5:0f:a1:96:f2:91:fc:f8:4e
Fingerprint (sha256): e7:86:51:07:01:39:16:15:a9:9c:a9:9e:47:72:97:d1:90:15:1b:9e:71:1d:2e:f1:b0:d3:d5:bf:d2:45:68:9b

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

Revocation information

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

Check the revocation status for certificate 1011.co.kr

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for 1011.co.kr

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

1011.co.kr

Other certificates including the domain name 1011.co.kr

(limited to 100 certificates)
1011.co.kr
www.1011.co.kr
erp.dev.1011.co.kr
erp.1011.co.kr
erp.1011.co.kr
1011.co.kr
erp.1011.co.kr
1011.co.kr
ajaytech.co
www.optionparent.com
sabayadmin.tk
1011.co.kr
erp.test.1011.co.kr
erp.1011.co.kr
www.1011.co.kr
itsolver.net.au
erp.1011.co.kr
sk-fa.1011.co.kr
www.1011.co.kr
erp.1011.co.kr
www.1011.co.kr
erp.1011.co.kr
erp.1011.co.kr
jira.1011.co.kr
erp.1011.co.kr
1011.co.kr
1011.co.kr
erp.1011.co.kr
www.sociedadedourso.com.br
platform-tools.1011.co.kr
erp.1011.co.kr
1011.co.kr
1011.co.kr
erp.dev.1011.co.kr
bug.1011.co.kr
www.1011.co.kr

Certificate

The complete raw certificate details for 1011.co.kr in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsEBjssRz7hkkOXRKRTy0
0Q3oeOUtf0fvdHDvWNmr6ZSdGZ/3g5JCPWmrExyaiVLzjGQWkf0v3V4jCeqioG13
SRXLmEPuPU6XwMiDFtZVmNDLil1xIM1FgmEQPZHzhgs/Qp+BNpGy+KYPso8WtScm
U0PjbSznowLr9m5LjAxXnFAyGxz0/9D/MAJRDR0L3nhUUyJPJ4l4nAJaaevfcVRo
/K0DZYCEmULwWCfPn9bwNLMshXhlkkScISgkf5sv6Eubx0uBVZFPEDtmrBG/1ejY
McKEwwqcA72zdEoyYuLhKhahjIvuU3gk9tuoSUQehfuCiMZE2nxp7s+FB9rajAAb
ywIDAQAB
-----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 396364519455680233977544510480279530242639
 . . . . . . . . [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 2023-11-25 18:49:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-23 18:49:10 +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 '1011.co.kr'
 . . . . . . . . [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 22249693293506344187357793241008688363814104698311080324747233517548845541833939417042290862342975983676798335902751744223285048315377361639307466422652952578048236862543157346422008333432890315572571635387963105755986227110953844822361440331371683249810329021667197643496066070162728144780634795385532451584495542129773932585767430654608746016173046492831266925004526602742298023350401780941757980109981600102117556252473348784183330579505540259263099377806463976028108422041488765527205397582938562509579893022476650164696371504017545548084703996718943793904083077569188073193877126609446475787504093974543416171467
 . . . . . . . . . . . . . . . . . . . . [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)
							168cbdb16b73960ceadcd3673f2ecb91ba97c302
 . . . . . . . . . . . . . . . . [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 (14 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '1011.co.kr'
 . . . . . . . . . . . . . . . . [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)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c08076730000004030047304502202a845a23dfa52b04b8215c06fe4cdf6894c393d583e88906537654b3b51f0855022100d65feef24b3607ceae2f9c13641af4c910bda268af0a01897b7095c6d524a51d007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018c0807673a000004030047304502201912130731ac082562513ba0da20c2d575f39051381c40918075506686df0c41022100fa9feba53dfed29b4d8e3cb1510aeb81a468ca23742ff81c1bb3994e9259fff6
 . . . . [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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