cityoptics.com.my

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:61:e0:db:0d:02:27:87:e2:15:3e:ec:a9:d6:70:53:ea:0e 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): 03:61:e0:db:0d:02:27:87:e2:15:3e:ec:a9:d6:70:53:ea:0e
Serial Number (int): 294643131834521626539115801947549652478478
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): d3:c8:5d:15:53:ed:f3:ac:09:37:c1:c2:07:d4:de:d3:49:36:03:bd
Fingerprint (sha256): 8e:03:60:4a:50:c0:2c:33:19:ac:c1:a8:3e:31:b1:a1:15:bb:39:b9:2f:94:6c:65:23:fe:94:0e:e4:b0:14:21

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check 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

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Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----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 294643131834521626539115801947549652478478
 . . . . . . . . [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 2019-02-25 05:27:53 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-26 05:27:53 +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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc56000001692356a0f800000403004630440220592748cba6c1a75b8551c05eeef7242170e9a5515776da5b40572b6271458d3902200e61374e2ec1f3f1393ee47fa47312acfc669f1aae63db65eca3fba1ff33002b007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016923569f14000004030046304402204c2ec353b9deec08ec64739702cc758052a78d1455c7996ce78006f548bdb2410220056d134f519e86898e6a8f8c1448ee7dbe125746453694b0e5ad4ece7866bf22
 . . . . [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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