webmail.aucklandcitylibraries.com

Issued by R3

About this certificate

This digital certificate with serial number 04:0b:6d:86:7b:e7:c1:76:7c:f2:b7:28:15:a8:fe:c3:ce:9a was issued on by Let's Encrypt.

With 7 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.aucklandcitylibraries.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:0b:6d:86:7b:e7:c1:76:7c:f2:b7:28:15:a8:fe:c3:ce:9a
Serial Number (int): 352337833895588869821784968766283130850970
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 2f:83:49:d8:bc:c4:94:7e:85:6d:5b:42:75:f5:26:f1:ca:41:ea:da
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 40:25:18:69:94:a7:8c:3d:ad:b3:a4:d0:53:4f:c3:7f:e8:b4:c6:e5
Fingerprint (sha256): 84:7b:df:3c:3f:fb:12:ef:ad:ad:92:a2:77:7a:64:5c:19:8a:87:39:79:ab:44:67:35:5b:e7:ff:52:c9:02:d8

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

Revocation information

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

Check the revocation status for certificate webmail.aucklandcitylibraries.com

7

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for webmail.aucklandcitylibraries.com

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

aucklandcitylibraries.com
autodiscover.aucklandcitylibraries.com
cpanel.aucklandcitylibraries.com
mail.aucklandcitylibraries.com
webdisk.aucklandcitylibraries.com
webmail.aucklandcitylibraries.com
www.aucklandcitylibraries.com

Other certificates including the domain name aucklandcitylibraries.com

(limited to 100 certificates)
nzchinesejournals.aucklandcitylibraries.com
aucklandcitylibraries.com
nzchinesejournals.aucklandcitylibraries.com
mail.aucklandcitylibraries.com
nzchinesejournals.aucklandcitylibraries.com
nzchinesejournals.aucklandcitylibraries.com
nzchinesejournals.aucklandcitylibraries.com
nzchinesejournals.aucklandcitylibraries.com
nzchinesejournals.aucklandcitylibraries.com
nzchinesejournals.aucklandcitylibraries.com
nzchinesejournals.aucklandcitylibraries.com
webmail.aucklandcitylibraries.com
nzchinesejournals.aucklandcitylibraries.com
nzchinesejournals.aucklandcitylibraries.com
nzchinesejournals.aucklandcitylibraries.com
nzchinesejournals.aucklandcitylibraries.com
aucklandcitylibraries.com
nzchinesejournals.aucklandcitylibraries.com
www.aucklandcitylibraries.com
mail.aucklandcitylibraries.com
nzchinesejournals.aucklandcitylibraries.com

Certificate

The complete raw certificate details for webmail.aucklandcitylibraries.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1GIanWenWUeATcCLnIoD
I2cxs27FMDWv00mXF2WxtQJq/OR8/nO1Ova3rgQocy4p9f4VTKTn72YvqRY5s2Ok
1M0g0T2YcB+/gt+NzM+Kn3kR48cHNsHSR+EtMSQkVkK8z2QQmEYqN0ZMl1CqAWFY
zMXEwPCOKT81wpjwwolIpDxl4RxwemrwfvrukZq3CP2MuwqdqnnenP9bEbx4njLK
14vhX/u/ZRDJOtg+SsoNYWvyMAYhDEOVKVNnTiiDMh8wkXN+BKH3Fyx7wI2lQLQW
Ouz0Y8vb26H3fBKDgVBCHlUYdnEnDzGbnhfhPJpZLAZlAUeGuRMAN15D4fQIl1Cg
RwIDAQAB
-----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 352337833895588869821784968766283130850970
 . . . . . . . . [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 2023-10-13 00:26:19 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-11 00:26:18 +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.aucklandcitylibraries.com'
 . . . . . . . . [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 26810897520635320232648470786819470796708696071679172751995841529988636321743921043703094372034646579470434171253594377131840510951688109091263248176239432800726068296615647648010944673461610053639051280986219144871451658307949531638781892729233784134968395986956199748187851509937486239618984773060238477903953410101939755881235489302056198072700339070211946106686428852728714519768568523868166778358464869028489865337338036487597810973627893051775901671668061643946226639713282795841966164954485613914980636527147425626276328685268214720039017098135830524743869958354935126310747326740265490767084548661595121688647
 . . . . . . . . . . . . . . . . . . . . [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)
							2f8349d8bcc4947e856d5b4275f526f1ca41eada
 . . . . . . . . . . . . . . . . [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 (237 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'aucklandcitylibraries.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'autodiscover.aucklandcitylibraries.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpanel.aucklandcitylibraries.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.aucklandcitylibraries.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webdisk.aucklandcitylibraries.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.aucklandcitylibraries.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.aucklandcitylibraries.com'
 . . . . . . . . . . . . . . . . [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)
							00f1007600dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b26a43d320000040300473045022100e40e97b053e7a96d10d73c2b5702eec652a6dc574d3e98b61257fe804ee2ec3c02204c5dabcdb026966bb687f423ea54a2ea50d37e166a5647f214b7160f2ceb3ef800770076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018b26a43dc50000040300483046022100f46a9c8ac24c7bd40ead453e59224639e0cd8c70e749d5e603dba1b8652bc4e0022100b6d4a12841733c674e449e35800a01dc582496b91ad5429cb193e14fb69a9ce6
 . . . . [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)
		003df79364bd83976f7187a1499109d301fce9c927d24e2aafe7acd7ffd8d4269fac118e0f35aaf98ace0e90c6a5a5c6006d461fdb5ace26c2d1146e3d9ebb4b3c0adbe70c644de7d767f79798f77a1a70d1b4cc618dc169db56d0d7187e2968a34326c33da3f6a9844bb2a693e82b04c6625d2ad787241bbd48120b57fbc52c9aeb60f36331403b00316af7d27130ce6d5712cb4200aefcfcd98ac9b43ed058c2d27ff9b6116c2bd8018352ecac5d91f229ad3645e9fe56c390f08bcb07327072a3a5915c70c5a58b064d457f794285d61c0fb4fcaff1cd8fff2372db05888df1446ba00ccca42719df64d5ca003d1e84d4e415a1cc11def40670ce5d2387d7b3