zone-aws.zonetel.com.sg

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:a9:b8:0e:ec:2d:ae:83:79:89:cd:4b:c7:61:9b:f9:ae:37 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=zone-aws.zonetel.com.sg

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:a9:b8:0e:ec:2d:ae:83:79:89:cd:4b:c7:61:9b:f9:ae:37
Serial Number (int): 319089233238567727383258847393196136836663
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ba:22:0a:36:cc:dd:fb:03:37:97:35:16:9c:f8:32:8e:a3:fb:ab:06
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 8b:05:91:22:09:f4:7f:db:c1:d1:6a:93:34:c4:86:41:f0:ad:af:f1
Fingerprint (sha256): ef:fe:97:cc:e2:ad:25:05:2b:bf:0b:9e:bb:b3:d7:17:30:6a:67:e4:e6:32:3e:a4:f3:0b:05:b8:c1:5c:3c:12

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 zone-aws.zonetel.com.sg

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for zone-aws.zonetel.com.sg

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.veribus.com.sg
mail.zero1.sg
mail.zonetel.com.sg
zone-aws.zonetel.com.sg

Other certificates including the domain name zonetel.com.sg

(limited to 100 certificates)

Certificate

The complete raw certificate details for zone-aws.zonetel.com.sg in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuydGYWaOqjmu9unUWVRu
pRUyPRyDjTA1D236k9PlXUMbW1g23+E+t+hg0bTVntypIXYSx/7WnglHpC2bYbs1
1SPGQONWS3S0PYqwMevr6Sybwi+PP8eBzSZ9CxMrkZwnHMaNJ7/ZZAQWp0uPwO9x
KtreCKI5/NYBMrRunu0YDzpck23OIhYGDhVHBmXGuDcOwGhaf78M+0UZnb0a1hCe
mRN9I4gmQsz+wMQWMyUX6TrZjjGapRpl2wEzYPrCkvb9H10gRgdBrQLrF4JQPW7w
o4EJ9RX3gFv8LLwb+U0v3RNssLIHDUxIQKmU4tr6evOV/g4GOySR/MYdexsM6qsv
zQIDAQAB
-----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 319089233238567727383258847393196136836663
 . . . . . . . . [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 2019-05-12 13:28:17 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-10 13:28:17 +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 'zone-aws.zonetel.com.sg'
 . . . . . . . . [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 23625930215361974434632541142992489731760853358316744587376777923621803724564408539556705003468872634607458588950544980109576953013305737878380803958465393358427568261395366636929871685573381598846103876777803090469349866930771550587193457275564878856230134405774536967694559807698320221098055283398705845390946267512716576655706715775521875634536108019706791371254965418461919276713536224964644870327701042964926196519061042638271121433540630446018085067119841280807588653753238735550076985414124615304837000231329187406815096322404735131445710519545591541961849745423452983769099528022517025841257718120742770126797
 . . . . . . . . . . . . . . . . . . . . [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)
							ba220a36ccddfb03379735169cf8328ea3fbab06
 . . . . . . . . . . . . . . . . [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 (84 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.veribus.com.sg'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.zero1.sg'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.zonetel.com.sg'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'zone-aws.zonetel.com.sg'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016aac71c01a0000040300473045022100c403537979cc1fd0bbec090c96994fd91a2be6d1ad2aeb428585db19773cbece0220789455c1aaefe22cf343fd66a5c8f3cb7a42f5dd7c104141377c35d967303e92007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016aac71c0090000040300463044022045e15821b36da7b9db35eacaea371ea1c628d104a7c0a76632755d38a7b23d3c0220032f27b74a1ea96a077a95321caa0611eae8b351d9694d1852f0ecaa4f54563c
 . . . . [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)
		007f75fcd11b5cfa9a49390dcf07a8949e13a534eb3c54504352256b4b4ed54f86a33df56177b7c3fb8f27c3502118e8450552c147db2fd1881e4e66b0cf2cefd403b2f9fb6259fd443d80c04ea093df808cc0e22b0e98566c38e442ac730d9a2839c246f7c178ceb0ee3bf34cec089b1db2099ce329bc40abe628d0651021f3c34d3f4024d456bfb0fbde85cdedaa8d548a681038b53ac342e471c13d2b1b2e228ccfaa1dce92e5725327322b0f4a3088d993a9f88bc99ce7a4c943a7e63b7e4fc7cb1e616f4cb9d00e843b9216f0e54fccc61bf3bc66083c290dcd6f0fc1c4d6a54714e4dfad4652f316117ccf3df87034dd953a60208397ad5a2add123238fe