libanswers.lub.lu.se

Issued by R3

About this certificate

This digital certificate with serial number 03:b8:a8:ec:cf:4b:01:62:b8:3c:66:4b:0b:d4:34:04:b1:6e was issued on by Let's Encrypt.

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=libanswers.lub.lu.se

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b8:a8:ec:cf:4b:01:62:b8:3c:66:4b:0b:d4:34:04:b1:6e
Serial Number (int): 324173353198485226277336154204287237665134
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 7b:f0:41:57:c4:09:ef:33:20:9e:a7:67:9c:78:a7:8f:7a:3b:16:34
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 93:f7:f4:64:59:c4:67:71:5a:41:80:e8:38:aa:46:d1:fc:3d:48:d5
Fingerprint (sha256): 00:8b:d3:09:a3:42:cc:2f:4c:43:23:df:5b:be:be:fb:fb:e0:16:a6:7d:b3:ba:d3:0d:4a:70:4b:cb:6e:9c:71

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

Revocation information

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

Check the revocation status for certificate libanswers.lub.lu.se

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for libanswers.lub.lu.se

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

libanswers.lub.lu.se

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Certificate

The complete raw certificate details for libanswers.lub.lu.se in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3AlzYAftLfgYvZit8dZD
XR1CeOVSqJAr3KRPzQzoxJzM272UofkmTh7bS5/+kVEw42Vah3/ykfBrK6wyzgVg
CHmonOWkO2txVdxtGSZimIZlmuFA60tNuT+sRuMg6X2MqEAEs/XR9VNiA95u6viL
NrvpCkRZC/od6IWALm7fjw+C+NXIhfYLvl984ntc+Gjou9yYsrW1u9flXxAaK8dd
O8aA+gES457E3LMrm2Eym0jSJzvBoFg4Ywi10iaQZve5GBa+WdmRrMTlirpZDOs3
W9X0GC9r6JDBD+M5huS7K6DtJq59MUv/5z1/mShZ9/IQSg07JQTi9nYWUvRMzAIU
tQIDAQAB
-----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 324173353198485226277336154204287237665134
 . . . . . . . . [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 2024-02-25 12:06:08 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-25 12:06:07 +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 'libanswers.lub.lu.se'
 . . . . . . . . [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 27777087398537926121922626150338210536836795230317659243917587209102910217318896704866506010000848289685849596843064340741808136332337802763443567281335921008155424625444272042784767417487843680834868236595291328200821107891049700888318183173839434259109394173715411617547609877197794734228953656109408206156024264412637633111399924412714203855897496432181548490636693104601679797586339252689238965445473699455100584194758853833248722558929982116122089148806047394357670603822067219178256891304443436182081974670578680735733858344627428598358251651196787484403722007539933339927875448487187320560120097247855850427573
 . . . . . . . . . . . . . . . . . . . . [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)
							7bf04157c409ef33209ea7679c78a78f7a3b1634
 . . . . . . . . . . . . . . . . [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 (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'libanswers.lub.lu.se'
 . . . . . . . . . . . . . . . . [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)
							00f10077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018de05f725d00000403004830460221009bd559595ae325236d1977533e988900c3aa11be5857251f2e7cc3ea0bc8f64802210097b59343d0a73e06cd7212853cbf3c0f61f5f8abfed7911902030a0ef698ba53007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018de05f725b0000040300473045022014fc2c93a041fcdc4312c6d968249ee3d78db4ad18d98bfc2de318085e6ebfeb0221008295af1e278ea7bd6d0933cb53ceb142701958496c0511233ae35b8e0ea82e04
 . . . . [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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