sgsengkang.com

Issued by R3

About this certificate

This digital certificate with serial number 03:ad:4e:32:8d:09:6b:ec:65:42:10:40:e7:72:1b:00:88:54 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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=sgsengkang.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ad:4e:32:8d:09:6b:ec:65:42:10:40:e7:72:1b:00:88:54
Serial Number (int): 320309649531683452556739321927634702600276
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 85:8a:b5:9d:e1:86:f3:19:52:dc:dd:28:0a:a5:e3:de:86:e2:71:59
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 05:52:e8:3f:75:f6:20:25:93:5f:fc:4a:ab:77:97:2b:b9:60:fa:f8
Fingerprint (sha256): a7:4f:d3:4f:9d:48:4b:e1:ab:85:c7:09:f7:9a:14:ff:34:1f:26:98:93:a4:a4:ff:e6:b7:47:bf:12:a4:94:4c

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

Revocation information

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

Check the revocation status for certificate sgsengkang.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for sgsengkang.com

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

*.sgsengkang.com
sgsengkang.com

Other certificates including the domain name sgsengkang.com

(limited to 100 certificates)
sgsengkang.com
sgsengkang.com
sgsengkang.com
*.sgsengkang.com
sgsengkang.com
sgsengkang.com
sgsengkang.com
sgsengkang.com
sgsengkang.com

Certificate

The complete raw certificate details for sgsengkang.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwLdr2wxu8R9K/xWnGTu0
OTRu+ebOSs21pj/wEXHP0uCTlf6VCzsTGORtWh7tH9vzMXxtCr0BZ8yoFqqbJSEh
hMbSqZVU76KkxXCBHnn1U2n5x6hjaERhiqYqHcR9x6wzCJNSm0z/buJnlwEeL1za
JrY5nKmtR8jTkKhq23AJk1uLDNBQlhd/3MZZgzOKVGkQx61q0e03c82sxRpwJRez
+oLmaxNvterjVX+aTAUO7lxCUM+e05g8jilUWRxwBCpdq9JnycQogSxs8FjaPlRM
qTkkgaySQrbn5AbXG2aLRU6sZCsxHQyZK8epB0ZQXQqT9qXxUKadkHBR4RGs1r5a
dQIDAQAB
-----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 320309649531683452556739321927634702600276
 . . . . . . . . [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 2024-01-29 14:46:56 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-28 14:46:55 +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 'sgsengkang.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 24328202973077919903823959103020938064420227728598967418000367341805608714912167618840458460058322243432629069820487923503898954747211964578312760716570163137001556575047842729261967298762418528121733581953056780583596687744949144065756721346779336234465447803764518824098764304086759131329479892045879140573435842927200699683509481531365873604249583610972739531613420652250564289459463874790403974684764947499721496697644032001050973636379771498544114943800492010503797921420775469303744571895249906859687200063564556885339534301158020870661045791156964460895608852216850954230692992887681141404902397833952106535541
 . . . . . . . . . . . . . . . . . . . . [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)
							858ab59de186f31952dcdd280aa5e3de86e27159
 . . . . . . . . . . . . . . . . [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 (36 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.sgsengkang.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sgsengkang.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 (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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d55e6f5ea0000040300473045022100b233a86efcd3fada7c7b1dbdfee3a5a6681478cb9ecb1abd69eea1da1b7dba510220274f00905c983bcaed8b6cd23cae5b21a00db96b1040188ab3c803e92f7789aa007500a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018d55e6f60e0000040300463044022012720ae9e704dbf219bba08d5cc4ae7b40eeea7d044da4d03f2c2fb5e8713a220220394533677ddd452183f7accc636bb73b5f719d0cdaf4dcb67e1122f80038ead9
 . . . . [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)
		00aeed60bcea9a0fe62dc1bec63cdbbbbe500e85e06e13f997347212cdf773737eb5d1636cd37fcfbe5090060a4bcb029dd199367473d87e862dbde9404ef737deef61889679e41e4375d7db73f18552887979b39cccc9a9234d2bef51d20983295debe6b014d3a0396277a7533934c293daa158f69b3b6db87f8a326bfac40cf522fd866a772cc42778738339bfbe9ff1277a39ac69c4bc50545ca5d8b079cec07735653f621e970c6671e915a790d9716b5292a4299c0c7e4d09d8c8b85801e4ebda636697bb4c9e32b95bed59f415ffe1260c391e39fc158472d0b41d38bd575a0ad57ed6da97865089e7c305a4633b2185cfec3ce12d216cea3aeda547ce92