cpcalendars.hongminhsg.com

Issued by R3

About this certificate

This digital certificate with serial number 03:f8:f8:85:7d:d3:2b:91:91:25:db:81:80:1e:52:25:85:79 was issued on by Let's Encrypt.

With 12 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=cpcalendars.hongminhsg.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:f8:f8:85:7d:d3:2b:91:91:25:db:81:80:1e:52:25:85:79
Serial Number (int): 346057226462142149729419566653527323673977
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: e8:f7:43:aa:c4:08:ea:67:14:16:46:6e:75:63:74:d7:9e:a5:f0:bc
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): b2:67:e1:dd:15:57:f8:0b:2f:24:07:bc:95:95:54:58:f4:09:b4:ef
Fingerprint (sha256): 9c:d5:7d:aa:33:87:8d:e9:30:b4:03:c5:a5:c0:a7:81:7d:1c:16:42:95:32:c5:49:d7:34:1e:1a:84:d3:7a:31

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

Revocation information

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

Check the revocation status for certificate cpcalendars.hongminhsg.com

12

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cpcalendars.hongminhsg.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

autodiscover.hongminhsg.com
cpanel.hongminhsg.com
cpcalendars.hongminhsg.com
cpcontacts.hongminhsg.com
hongminh.com.sg
hongminhsg.com
mail.hongminh.com.sg
mail.hongminhsg.com
webdisk.hongminhsg.com
webmail.hongminhsg.com
www.hongminh.com.sg
www.hongminhsg.com

Other certificates including the domain name hongminhsg.com

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwHEzBo5v5aDlDIzLEsLC
aJL0cGGrP+EI+KS+GcYm4d+wD+6WiTABZZNmnONM98rcNWdY3oh58nyQ6llULcQH
1Sntu52vxqERtZPmXY6zwFNp7ugFhvlbL+m6Vwc+pbFXcB6ktOTiWmEGNDmqP572
BBUMox+M0e9zvQRZES8bopFa6vuQgWndomj6PtWVxNtAILsKhAtUW6NjyfmArEtf
JtrQq9sTw0/7qwJmHHpvtcbCIDp1ycgVClN5NfXgIzHg8kK8JEQLoTCPoScclueV
T0BxINu6BIpYi//edggg+bRyP4lS148x6jaNEdyDJetr51+rNoW5ergAWP2zeUIG
0QIDAQAB
-----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 346057226462142149729419566653527323673977
 . . . . . . . . [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 2024-01-23 09:44:55 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-22 09:44:54 +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 'cpcalendars.hongminhsg.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 24293575218044568992869585041334226517092422363378082933117497755164407658658595924854554301967536735728029461105965297298479178957296115186011529091866240407473181563691098586696255469936658037964114747988843862950822602461530496240741821703019839577618351377839699203348557295653949183626433914546898107212606977338364766263874909039419013879969704193456151907050158816731845627843502747677037259715222217975827611161791406856874015638794691193056863193083332615351424042316598157278178764666551456930211557840743915877376041512245890381468329021320089386739444683573784675145583032329085522302064380085078316943057
 . . . . . . . . . . . . . . . . . . . . [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)
							e8f743aac408ea671416466e756374d79ea5f0bc
 . . . . . . . . . . . . . . . . [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 (276 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'autodiscover.hongminhsg.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpanel.hongminhsg.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpcalendars.hongminhsg.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpcontacts.hongminhsg.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hongminh.com.sg'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hongminhsg.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.hongminh.com.sg'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.hongminhsg.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webdisk.hongminhsg.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.hongminhsg.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.hongminh.com.sg'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.hongminhsg.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018d35ec4efb0000040300483046022100a06dd6f1cf79ffccb254031b68ae143e23c888562304e80ff433d75dbc66b1fc022100dcb60f1c9702bed90a18787a59165df5960438ff62633364469e099e298a308d007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018d35ec4ef40000040300473045022100819126950f2037695963f31e014adc36f2b7f990b35d60632bf6c8037d424d9202206659aae2d6988d4629339e4dceba96d9a4d73b2bd255489a7be9b4bb5282c053
 . . . . [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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