*.b2bexpo.com.au

Issued by R3

About this certificate

This digital certificate with serial number 03:5e:55:5d:4d:c1:ad:34:87:b0:ea:b8:f9:16:21:b8:7f:d8 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=*.b2bexpo.com.au

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:5e:55:5d:4d:c1:ad:34:87:b0:ea:b8:f9:16:21:b8:7f:d8
Serial Number (int): 293436869126188696351651556686214473482200
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 7f:3e:ec:fd:fe:d9:10:fa:e0:02:50:d4:18:5c:b6:86:60:be:d9:91
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): b9:5d:93:b0:51:36:e6:96:8a:45:39:fa:f2:34:0e:89:3f:fc:02:b7
Fingerprint (sha256): 37:cf:5a:0a:61:47:7b:b8:f0:ad:69:62:09:a2:e4:45:c8:88:dc:5f:47:c6:5f:e6:85:a9:ce:8a:aa:8e:c1:7e

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

Revocation information

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

Check the revocation status for certificate *.b2bexpo.com.au

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.b2bexpo.com.au

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

*.abf.events
*.b2bexpo.com.au
b2bexpo.com.au
www.b2bexpo.abf.events

Other certificates including the domain name b2bexpo.com.au

(limited to 100 certificates)
b2bexpo.com.au
b2bexpo.com.au
b2bexpo.com.au
b2bexpo.com.au
b2bexpo.com.au
*.b2bexpo.com.au
b2bexpo.com.au
b2bexpo.com.au
sbcmedia.com.au
b2bexpo.com.au
b2bexpo.com.au
sbcsummitexpo.com.au
b2bexpo.com.au
b2bexpo.com.au
*.b2bexpo.com.au
b2bexpo.com.au
b2bexpo.com.au
b2bexpo.com.au
b2bexpo.com.au
b2bexpo.com.au
sbcsummit.b2bexpo.com.au
b2bexpo.com.au
b2bexpo.com.au
b2bexpo.com.au

Certificate

The complete raw certificate details for *.b2bexpo.com.au in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2hZu9dGWbAPE4q1hwbiS
qm06lyZAeFdwk7eGVQ63rOZ30zgXy0rjZrd8DJp9x0oL1Vl3p79tWpV4P6FgxTnH
cjkeOBaYCw24prq2zs+RQgnebQNj01UoCIt82CKWUTeE+gDWPvaATK2WXM0y7xSa
KJvvEX0b1SxpveW5uaXlE1MW42RTUkJZ+dPzT7E2wPlWtLGEwwsYFUi9PEeBhqFt
6SbdQsaVSwb/nYCrIrqUkkwpETRhjSxneasEwjFOMrqtXuO6TEghFaCE2Nj8Q9HT
iR+GMuST0fRHFKE5y6ysiVxE/V75B/SRpBQK48CU2mTC//37BP67JQCyTxeZEkQQ
VQIDAQAB
-----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 293436869126188696351651556686214473482200
 . . . . . . . . [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 2024-02-06 01:29:58 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-06 01:29:57 +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:12|false] UTF8String '*.b2bexpo.com.au'
 . . . . . . . . [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 27531012823372793017570638655901589926345501361256554446393452864300368266869903118661368170454975168692203192940118243497024542332517013779591250474669789086065621811130158588287578512913202571175083047718846743075138969449725132516305628695241355557508581288856571259649995630706994236145897827960745617551114741462119929420315119794721665064510291223847290295589682139188934917821888508051706262697773109334479349941998048368402581776527549135646973056175257733633334393219832589357757143407168808271360075173294488139264370075945816047936118915366890087392021934095821657310919623397542679801731040279749726572629
 . . . . . . . . . . . . . . . . . . . . [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)
							7f3eecfdfed910fae00250d4185cb68660bed991
 . . . . . . . . . . . . . . . . [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 (74 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.abf.events'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.b2bexpo.com.au'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'b2bexpo.com.au'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.b2bexpo.abf.events'
 . . . . . . . . . . . . . . . . [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)
							00f10077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018d7c4031180000040300483046022100fb371cef165e721dce99810088cf1a6e8b3be6fdc7a7fec5278849731ed5ef7f022100cdf62e38b8cab2fe229be759f3de824cb361de83ecf462d4cc13bce2aabc7210007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018d7c4030f50000040300473045022100e5a9f4fabff27a07c5fb48d4978d171da2cdc3cbf1f21e282cfba11ff447df2402202905382545297bdd413d71c2d525d57b9794149f15e7cdccd8e2cf6625510d04
 . . . . [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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