discover.knoxcountylibrary.org

Issued by R3

About this certificate

This digital certificate with serial number 03:8a:73:48:b0:da:f0:b3:1e:04:a5:c2:52:e1:5e:b5:79:3c was issued on by Let's Encrypt.

With 4 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=discover.knoxcountylibrary.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 03:8a:73:48:b0:da:f0:b3:1e:04:a5:c2:52:e1:5e:b5:79:3c
Serial Number (int): 308449063082309650343429766048748815087932
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c1:a6:21:e4:fc:7c:ef:f2:b1:cb:9f:38:00:7c:33:af:dc:28:a3:69
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ee:17:05:7b:35:cc:17:6c:ce:ec:74:06:8e:36:42:e2:29:7b:9f:e1
Fingerprint (sha256): 9e:3b:9a:a7:14:83:af:75:5a:99:7f:13:75:96:35:4e:3f:ca:3f:ac:1e:35:61:d1:a0:8b:f7:b0:91:8e:51:d6

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

Revocation information

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

Check the revocation status for certificate discover.knoxcountylibrary.org

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for discover.knoxcountylibrary.org

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

discover.knoxcountylibrary.org
knox.aspendiscovery.org
knoxsandbox.aspendiscovery.org
pac.knoxcountylibrary.org

Other certificates including the domain name knoxcountylibrary.org

(limited to 100 certificates)
knoxcountylibrary.org
knoxcountylibrary.org
*.knoxcountylibrary.org
knoxcountylibrary.org
knoxcountylibrary.org
knoxcountylibrary.org
knoxcountylibrary.org
knoxcountylibrary.org
knoxcountylibrary.org
knoxcountylibrary.org
discover.knoxcountylibrary.org
knoxcountylibrary.org
discover.knoxcountylibrary.org
discover.knoxcountylibrary.org

Certificate

The complete raw certificate details for discover.knoxcountylibrary.org in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2NglCcupGoS3VWO1gc/0
pNr+XP1slC883un/E/ZydxuiYuMeKGM+jNWqiylnTwDpebA/nIE3wzlJLljGn7xy
Hfzm7mfYaYUGCW33mREP1jDxnXM9cM1U1dQ+vmzJq4YN9oO5R3KfXLTmooqjhCq8
zP6AF8noWreWma80igKa2HY+u52/1OxYVNK13e9Mtw2AhKMKueAw66RbAcwS3ew9
t3wYuHf38kTBva1vjxYfPWxfruN/vWeNDK0k6MJR6vOO7I9dODRLtT83TxgTRj1m
RtP8SYSGItQ9JgPpJgifPxE/VhH1SJQm9N+Z85MSU7JqPMuAJOHF7ykyt01+UC6P
awIDAQAB
-----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 308449063082309650343429766048748815087932
 . . . . . . . . [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 2024-03-10 05:06:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-08 05:05:59 +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 'discover.knoxcountylibrary.org'
 . . . . . . . . [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 27374058787204981324106983187400299402953868517413155504528254354167077088461971057485142876662761997578162948213733597496140471396031465291847846885441376576882502778686358545043853767351386992195062251271390506927173185546466783549400167284774178637328756850238100677341330020280346319975016010345597384420612965774127088828003482436751529299022299356782489375761086104850567297314243799895958083687971166843375288817254891381805907846978195637021054736585650289231487068082957024161636773748163203480884284404422294571059193607921400572209046042889346710987271599266648018619348865739694312226338209544526000721771
 . . . . . . . . . . . . . . . . . . . . [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)
							c1a621e4fc7ceff2b1cb9f38007c33afdc28a369
 . . . . . . . . . . . . . . . . [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 (118 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'discover.knoxcountylibrary.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'knox.aspendiscovery.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'knoxsandbox.aspendiscovery.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'pac.knoxcountylibrary.org'
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018e26f7d8e30000040300473045022100c4caa1fdd3200ff50ed428d3d4f3f51ef36b62fdf70990d61515742f8031a484022077bb720a0cb72a4838d865fb2daec83ae41c46c983d9e447c052a500019bd4c800760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018e26f7d901000004030047304502206ac26bd50fad7cfa64d71cad4814e4c7ace2ecde34e2fa182db1a1fb78226710022100c309653197500d63db1ee0d24c1c2ff436ac8f8f2d90373be90dbd49758d835a
 . . . . [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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