DV SSL/TLS Certificate for u2home.co.kr

Certificate is witin its validity period

Issued by Let's Encrypt (R10)

About the u2home.co.kr DV SSL/TLS Certificate

This certificate with serial number 06:39:cf:37:86:8a:dc:84:03:fd:f8:7b:4b:03:d4:bc:31:5c for u2home.co.kr was issued on by Let's Encrypt.

With 3 subject alternative names, this certificate can be used to secure multiple FQDNs. This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for u2home.co.kr provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • 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)

Let's Encrypt

Organization: Let's Encrypt
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 06:39:cf:37:86:8a:dc:84:03:fd:f8:7b:4b:03:d4:bc:31:5c
Serial Number (int): 542345249005354288913879638007074969629020
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: a6:43:d6:00:82:cf:8b:62:6f:54:14:8f:a1:f6:bf:42:9c:57:2f:57
Authority Key Identifier: bb:bc:c3:47:a5:e4:bc:a9:c6:c3:a4:72:0c:10:8d:a2:35:e1:c8:e8

Fingerprint (SHA-1): 4e:da:1c:c8:c3:13:5f:b4:06:4e:53:38:84:d7:fe:9e:f4:61:ca:52
Fingerprint (SHA-256): 69:31:0f:79:17:c1:0a:89:ca:ed:e6:47:cd:34:55:8d:23:ad:48:87:61:af:fb:c4:83:1d:e2:54:83:dd:2c:da

Issuing Certificate URL: http://r10.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r10.c.lencr.org/93.crl

Check the revocation status for certificate u2home.co.kr
3
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for u2home.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
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

The complete raw X.509 certificate details for u2home.co.kr in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtezivXEWbIopqAMhfwKF
fTnlGgiqxgvfsE8S4KoaxrkTHKwstctVqWXUg89KzQLEk0azff+90BRqUmUeYzMi
xzQQoR7AK5xwXhn9yxowo42wJoX+KQI2qBPNBD6PKm2jYUMbmbL1MM/sOBaiuXTQ
D0E8/w8eqOxyqlBWamO93AXnPKnBuep33peKDGNg8IdPVTX7hUeHZ+Kv1McflhaH
RTtUmpgwQZbra6yMjVSTqQcQmiFiK/hUmfA4AjvcjBenUgi68zVzTZSYOrnRtq3d
PnqxuZN5NRxk6UmiiFmWEf7csxHDk2is5mX39N2jt9w6j0q4XBZX3QYuubHvwVIy
awIDAQAB
-----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 542345249005354288913879638007074969629020
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R10'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-07-06 15:09:29 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-10-04 15:09:28 +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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'u2home.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
 . . . . . . . . . . . . . . . . [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 22965945892749426431897418124058347554841619827473912433033261080555685661717513975898416504877744136558355691090353968261219373586872004349237587368516559946823483373877401410615105046458606229469674362196662794388094639340223214722224268323814788444727998520187286936428466817699906192129499322235702887045766594988689434293524977262606559722625234517783582519306088608099158919373138404482614777591928149237684504785518431008822111313643552725760384396189059455012846158852927295513277966006600716474098257594340728035814697716633916841022866171338719644400736648796565258233770930034919472681217429525812802105963
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							a643d60082cf8b626f54148fa1f6bf429c572f57
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName bbbcc347a5e4bca9c6c3a4720c108da235e1c8e8
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r10.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (50 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'm.u2home.co.kr'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'u2home.co.kr'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.u2home.co.kr'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r10.c.lencr.org/93.crl'
 . . . . . . . . . . . . . . . . [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)
							00f0007600a442c506496061548f0fd4ea9cfb7a2d26454d87a97f2fdf4559f6274f3a845400000197e07e8ebf000004030047304502206465a4c7c2f9bdff995a3b30014718b1da37d3ca4342ff1cc4db3ca4a0f9d36b022100a1cdb3ebafe199d6289776bf64f02a8f917cc13503dc397c24b7603b2a02923a007600ccfb0f6a85710965fe959b53cee9b27c22e9855c0d978db6a97e54c0fe4c0db000000197e07e8edb0000040300473045022100a8b81b2822e82148fec3c0a32a3d57c3c2a27c489271ed1829f5db80f59aa7bf02203a8116233b3cb66d0e9ff8f51b26affeade302198849ddbe1fb2667893ddb57b
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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