webmail.vsing.my

Issued by R3

About this certificate

This digital certificate with serial number 03:50:7c:77:41:dd:fa:e1:ac:09:79:d4:96:1b:64:60:df:39 was issued on by Let's Encrypt.

With 4 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=webmail.vsing.my

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:50:7c:77:41:dd:fa:e1:ac:09:79:d4:96:1b:64:60:df:39
Serial Number (int): 288724890639703004455867114587027841015609
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 8e:51:00:48:de:e2:48:98:61:00:5c:8a:9c:c1:a9:56:b7:93:44:c4
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): cc:f3:00:a1:86:7e:a0:36:02:f0:13:0a:87:fa:26:01:ea:b6:77:6b
Fingerprint (sha256): cc:a0:62:31:c3:31:3b:65:d8:d7:b0:4b:3e:d7:d7:9a:83:02:6c:98:b7:32:d5:1b:1d:ec:f4:52:c7:e4:5f:e1

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

Revocation information

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

Check the revocation status for certificate webmail.vsing.my

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for webmail.vsing.my

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

mail.vsing.my
vsing.my
webmail.vsing.my
www.vsing.my

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Certificate

The complete raw certificate details for webmail.vsing.my in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2ulVAZfHtAOGm4WaL7On
zqsXQuAx1o3V/b4XD4LxpowqnnimwrM574ST4zR/YK+rkPjjlahfYD8OF2gvVEkH
m3YC7bwVBqGRHzcAo0JqulpHd/vuWrlwL3OPVxaF98tlPGskGJfVxlg21BJhFQBO
8IHnelxOPcYMV4K3OkNTKwsIf2AGGPOiAPp65MAfjcZs46whEFKZQuK0+Eb85Ro6
cYychnGEMAV3avOUxjgPZTJJFp7jwnOUrGhxTuAbPJv1GfiSxeBxbP2qqFl3FCvb
fN0zhEb9EiH32IT+0BadohnXfx2Qa2eI3oIcQhmfQ0rG9yk3CCnKDeo8ovNe6FCA
nwIDAQAB
-----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 288724890639703004455867114587027841015609
 . . . . . . . . [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 2023-10-15 00:57:17 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-13 00:57:16 +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 'webmail.vsing.my'
 . . . . . . . . [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 27635010807552278016545712874017731391973800099472752478367793903506851882151279194832136900600072326223109502744775608254868256962599358201904319162619960257510029421650942471529170720408435198623269303186825543072561861742797727328088085895337066805744753396524463102162557649389970252895638530917618526622944206819795257008272740821073408183837574823967617600890339247054010411060235968607745004000797313729697624848959515474372607144728835262862735809682992541952020124501037465481221345576685081716774115813040761259977472245253349271639213799370136474642511216180802336621376922319701161830917878700200374075551
 . . . . . . . . . . . . . . . . . . . . [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)
							8e510048dee2489861005c8a9cc1a956b79344c4
 . . . . . . . . . . . . . . . . [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 (59 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.vsing.my'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'vsing.my'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.vsing.my'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.vsing.my'
 . . . . . . . . . . . . . . . . [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)
							00f1007600dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b310d4eb00000040300473045022100a1045be27429c1e16b700a1654fca0ef0ba655449684195702a960ba5b08405b0220124400a9def9f13a4991c673baf3d0d711dedf0814c092907ca3f90a7dd8e3b20077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b310d4ea40000040300483046022100f438bc188673ad54878c711f290ea11b94d7193dd08b62ab32f2ff8fd1ddd409022100a4a9e0df250e6fdf8fd4f3b38974cf39e31996f7eef8451f4697c9b30792d006
 . . . . [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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