cityoptics.com.my
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:99:80:7f:f2:cd:2a:0e:18:c2:21:76:d0:aa:34:5c:d8:89 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:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=cityoptics.com.my
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:99:80:7f:f2:cd:2a:0e:18:c2:21:76:d0:aa:34:5c:d8:89Serial Number (int): 313570865463943740816028802304265508673673
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 77:71:f0:42:1d:de:c0:86:22:bb:de:80:9a:f3:61:21:19:e1:95:c4
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): e8:64:e7:2c:91:00:22:fd:7f:22:96:61:25:0b:a2:43:17:4f:26:16
Fingerprint (sha256): 1d:90:71:f6:8f:5d:f6:6f:e8:51:d5:c7:01:5f:1a:aa:2e:f1:0a:1b:1f:e9:15:e1:ca:b9:09:c4:a6:47:a7:61
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate cityoptics.com.my
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for cityoptics.com.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
cityoptics.com.my
www.cityoptics.com.my
www.cityoptics.com.my
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cityoptics.com.my
Certificate
The complete raw certificate details for cityoptics.com.my in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFcjCCBFqgAwIBAgISA5mAf/LNKg4YwiF20Ko0XNiJMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA4MDkwMTU5MTJaFw0x OTExMDcwMTU5MTJaMBwxGjAYBgNVBAMTEWNpdHlvcHRpY3MuY29tLm15MIIBIjAN BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs64ONlxwplrXO1JgXDtO5dJvOxDb Cy5+jjND5erI1WtnXmA8C08bzRNAFbICjMRce7LhiP8btgsBEyMIviCPDiFqYAJq tvJq2SK7ASeSJB8buDujd9nOYokoc35a4O9Z8drNoSnLjw4kzj58DQcpvj+kKnvI WW1350WtMe7NWqxEm5j+bfZU2SBcD7LjJlWl+c5OgHqCW8z+xUvZZW7ShDwCvfbZ NsKFaKQFvEKsSMxw0pCzBzOLobozL9dRWad370JyVbS7OQZ/MwkpGofLDPerWekr BZRRERFG/Y8WNYmEU1erea5ydEjp/ghk5sl3v64LAO+oMytSsbmXfdiNKwIDAQAB o4ICfjCCAnowDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggr BgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBR3cfBCHd7AhiK73oCa82Eh GeGVxDAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEFBQcB AQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5jcnlw dC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5jcnlw dC5vcmcvMDMGA1UdEQQsMCqCEWNpdHlvcHRpY3MuY29tLm15ghV3d3cuY2l0eW9w dGljcy5jb20ubXkwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEw KDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEFBgor BgEEAdZ5AgQCBIH2BIHzAPEAdwDiaUuuJujpQAnohhu2O4PUPuf+dIj7pI8okwGd 3fHb/gAAAWx0UN9OAAAEAwBIMEYCIQCLiYS1Ltuc2qLdqqSsgmIsL8fl1Dvjr6n8 9EX7dCi1pwIhAMIkU1aQkJW4HXccUBwx2tKCgn0M1fez+LtjJ7GhTeGrAHYAY/Lb zeg7zCzPC3KEJ1drM6SNYXePvXWmOLHHaFRL2I0AAAFsdFDfaQAABAMARzBFAiAW YB0RxQD2tIpug7BA4qCaQHd2Z5YlY9kVsCghQSna9AIhANUhfLvvbg81oK6JYkz2 55fORY86MLYUbvbFrPr1xxglMA0GCSqGSIb3DQEBCwUAA4IBAQAaKxCWVU24q2Ul FjcKf07v6A/tCyFPxBZxyBxBEBwdP6a1XMikEZNQjUgri9BSsR9cPEWtHsCnGEZ2 4+ImfIdtf/v+uMIloTHarUzOPad4jRKa/hfoLIfS7RR1Fl99AWQ1mCUC7vIUHvyC 7xVMX0rHeRq+0WY2aTEgLyXi+l+Vk3sj8Bs/Y+PRXrDEfv4Ji2x3HqGfo/Q0ksLY NoD1IrTsC/mPAi27kOi0nyZ6bC2d3/GiJN9hlsfOnByhZqvKFsIKnVP8WNKo0Owg EQifBjlZIKbJAB7WuDIb9PRqJJOCwgExaPIFFbwuZ5ghoRtOcuHeBr0SQUqPPR7F zjKIfq6g -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs64ONlxwplrXO1JgXDtO 5dJvOxDbCy5+jjND5erI1WtnXmA8C08bzRNAFbICjMRce7LhiP8btgsBEyMIviCP DiFqYAJqtvJq2SK7ASeSJB8buDujd9nOYokoc35a4O9Z8drNoSnLjw4kzj58DQcp vj+kKnvIWW1350WtMe7NWqxEm5j+bfZU2SBcD7LjJlWl+c5OgHqCW8z+xUvZZW7S hDwCvfbZNsKFaKQFvEKsSMxw0pCzBzOLobozL9dRWad370JyVbS7OQZ/MwkpGofL DPerWekrBZRRERFG/Y8WNYmEU1erea5ydEjp/ghk5sl3v64LAO+oMytSsbmXfdiN KwIDAQAB -----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 313570865463943740816028802304265508673673 . . . . . . . . [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 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-09 01:59:12 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-07 01:59:12 +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 'cityoptics.com.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 22682486563276485151962723912828564934500373046369843612359845649283112162699466642031741857274202001953816512119281939809180082598248194106619061929572135742224120219979682986828744109972040108311162263340864472579941768381358126437864978680332987864271853294795637918321893833833567990692495943004716838028884696221298772342019094051197534996287214252389514609311565864342588896453467900310289473848298506448275139157912716149322071997067740818522269440050312549040050789125961581720980935895730848777245246465632518457542712809116825231241716614640918227403649638331995287156642768515222020559936843644181662960939 . . . . . . . . . . . . . . . . . . . . [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) 7771f0421ddec08622bbde809af3612119e195c4 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (44 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cityoptics.com.my' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cityoptics.com.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 (69 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 1.3.6.1.4.1.44947.1.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org' . . . . . . . . . . . . . . . . [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) 00f1007700e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016c7450df4e00000403004830460221008b8984b52edb9cdaa2ddaaa4ac82622c2fc7e5d43be3afa9fcf445fb7428b5a7022100c2245356909095b81d771c501c31dad282827d0cd5f7b3f8bb6327b1a14de1ab00760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016c7450df690000040300473045022016601d11c500f6b48a6e83b040e2a09a40777667962563d915b028214129daf4022100d5217cbbef6e0f35a0ae89624cf6e797ce458f3a30b6146ef6c5acfaf5c71825 . . . . [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) 001a2b1096554db8ab652516370a7f4eefe80fed0b214fc41671c81c41101c1d3fa6b55cc8a41193508d482b8bd052b11f5c3c45ad1ec0a7184676e3e2267c876d7ffbfeb8c225a131daad4cce3da7788d129afe17e82c87d2ed1475165f7d016435982502eef2141efc82ef154c5f4ac7791abed166366931202f25e2fa5f95937b23f01b3f63e3d15eb0c47efe098b6c771ea19fa3f43492c2d83680f522b4ec0bf98f022dbb90e8b49f267a6c2d9ddff1a224df6196c7ce9c1ca166abca16c20a9d53fc58d2a8d0ec2011089f06395920a6c9001ed6b8321bf4f46a249382c2013168f20515bc2e679821a11b4e72e1de06bd12414a8f3d1ec5ce32887eaea0