mail.aucklandcitylibraries.com

Issued by R11

About this certificate

This digital certificate with serial number 03:df:61:64:9a:56:e8:8f:5f:7b:78:22:90:7a:50:c2:bd:e6 was issued on by Let's Encrypt.

With 7 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=mail.aucklandcitylibraries.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 03:df:61:64:9a:56:e8:8f:5f:7b:78:22:90:7a:50:c2:bd:e6
Serial Number (int): 337349283094303682402795915602171367964134
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 6e:66:2e:71:96:c5:a8:fb:cd:d7:ee:6c:63:8c:83:44:cf:f0:78:d2
AuthorityKeyId: c5:cf:46:a4:ea:f4:c3:c0:7a:6c:95:c4:2d:b0:5e:92:2f:26:e3:b9

Fingerprint (sha1): 61:e1:f2:0c:11:8d:88:8f:e4:94:fd:9f:91:ca:93:f2:5c:b4:1c:39
Fingerprint (sha256): dc:72:db:d6:05:67:cb:ff:a6:a4:94:42:de:e5:de:60:79:73:4f:54:a8:4a:d5:2b:61:df:e5:0f:8b:49:47:a8

Issuing Certificate URL: http://r11.i.lencr.org/

Revocation information

OCSP Server: http://r11.o.lencr.org

Check the revocation status for certificate mail.aucklandcitylibraries.com

7

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.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 mail.aucklandcitylibraries.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4P+QYeZBeZOzXRK+qS36
BJsh3/Nkl8VhhQtFkeRyrv4ymWjSY++Sj3h1NcW5/rzKFpLUs3ZD6cApUkRB8Dfb
xNUdEuKj5xCIHZ8cYt6pZPQAFkxASTNfU4V7J7IxLioGmFnujUgWH5RL4nozmdp4
C2pDWFnO8D6MTWtn2kdqH4qvXx9FdAliA9orooMkahDVg6yhLRHbBpVIEKVm3u6W
NXsMt78PTBZMEC7MVrifMRl8aTXqOdKAa/ApQvK6T5r5KWtk5xLxmYimFJr3enSu
KRpINf4rVhetLPp1fBosj9LSoViawgL/IFDYJZqj+4QtzNqbQyzTNGi59a+//UF5
FQIDAQAB
-----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 337349283094303682402795915602171367964134
 . . . . . . . . [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 'R11'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-13 04:35:20 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-09-11 04:35:19 +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 'mail.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 28403403614705951921757504047214579291536916619422238782759557634613242111550115594741297596746445377957199279311514628419884853102867651845008785739718983821645280650633322160126040142737054498036889301719907942039943766536414153397841723458405876110203516052174774168027541813115669760721315777150151443551327923491634844039481776219616546872323338168688504976042953533829873140505088821315534067865706480038329250886293513116566595930487689720858686849097396613774428552235351995517411425852198458589492549707133044136295289396042015298768056850285647967184694506722020065084594730922757228550583617341099564169493
 . . . . . . . . . . . . . . . . . . . . [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)
							6e662e7196c5a8fbcdd7ee6c638c8344cff078d2
 . . . . . . . . . . . . . . . . [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 c5cf46a4eaf4c3c07a6c95c42db05e922f26e3b9
 . . . . . . . . . . . . . . . . [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 (75 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://r11.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://r11.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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee0075003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e000001901017e9ea000004030046304402206e0f8240ccd55b43fb7a044882516239f2c710986e8de323bea5c8b8f852cc67022015ad5ff2f5b8923e54195663cc8b0d1ebfbe2e505e5734ee8c8f9f91efaf8234007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b000001901017e9e6000004030046304402200cef0bfb279ed04ad5a981d285329ba94ca09e498f8e809a47ef75b3dc8e65ad02205d610f1a37dea7f6636674cc0b583811275eeb519779b6cb49edaf8a7d6453cd
 . . . . [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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