billroth73.at

Issued by R3

About this certificate

This digital certificate with serial number 04:37:3e:86:2b:ed:87:d3:c2:d9:43:ef:40:79:60:06:ab:0a was issued on by Let's Encrypt.

With 6 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=billroth73.at

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:37:3e:86:2b:ed:87:d3:c2:d9:43:ef:40:79:60:06:ab:0a
Serial Number (int): 367247782702173034480726693396474992438026
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 11:ae:0c:5d:12:bf:16:85:8f:28:ae:13:c9:e9:c0:df:6c:c0:e1:e6
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 1a:20:9f:43:4a:b1:05:4c:8c:06:3a:03:94:03:20:2d:76:70:0e:b9
Fingerprint (sha256): fa:5b:fb:d2:00:ba:fb:25:f7:71:9b:ff:a3:64:18:d5:66:dd:fa:a2:9e:fd:c7:74:20:46:22:0a:f5:29:11:33

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

Revocation information

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

Check the revocation status for certificate billroth73.at

6

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for billroth73.at

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

billroth73.at
it.billroth73.at
portal.billroth73.at
r.billroth73.at
schueler.billroth73.at
webuntis.billroth73.at

Other certificates including the domain name billroth73.at

(limited to 100 certificates)
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webmail.billroth73.at
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it.billroth73.at
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Certificate

The complete raw certificate details for billroth73.at in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4gZxnOkcVLxiEyAX4RH6
49XJEahATtYl7aG7ZWHuSxHudpYxYpwtZ8DM/+/REsQszx7+/CdmZqk6otU7SKBi
fAiXdRWqRBjkHB8JAhqhP9irZArrMQ9uQ38ojzeSw2XMFg/VNoKxczcG2CManUAJ
Waq4sKvl3B85Fd7QG71/p0ytT65kl/Kp85xZKu1Ce6gqcjr18GhGsQEdVqOC/dXt
nJbqqW0apDKjxpiAyij1lbcMqUrL9gUxSZ7CmRZ+T4DfUiP8CUGe+sA/FfMcM5H5
AYf3j8ejUep7ulrFDZvA1PDQkN6tpjFzSDUtqEXpNJRmZuqYY0wt975tKddtqbGJ
3wIDAQAB
-----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 367247782702173034480726693396474992438026
 . . . . . . . . [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 2023-12-21 23:26:25 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-20 23:26:24 +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 'billroth73.at'
 . . . . . . . . [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 28533034478792628565233616944728870414258889251136041374164715675475674891959721721607751245949398516927887499400768969778905562189761198177738605088847671485690121797776335808251480182071074496212353205856776461784095004910036708031108167746754413667030783214751374004970957818920584881225878655222305248085426681299919982961435527194241546421997313270348389150824428990857977502420230573422867560146580994059651148691132573910661613338878331498376944732153363168798776194131904306888664391315081971696931339765621142758644987369329610062088608422090675029246144839019487414095322340640021862513633986103628337875423
 . . . . . . . . . . . . . . . . . . . . [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)
							11ae0c5d12bf16858f28ae13c9e9c0df6cc0e1e6
 . . . . . . . . . . . . . . . . [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 (122 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'billroth73.at'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'it.billroth73.at'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'portal.billroth73.at'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'r.billroth73.at'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'schueler.billroth73.at'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webuntis.billroth73.at'
 . . . . . . . . . . . . . . . . [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)
							00f100760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c8eea8ec80000040300473045022100e061ec74216aba60a102069faad45473e9b52aba6631208f79b7ac6948ab04a30220490f4e5a3f4b761dc905dbe8d42c3264537cd5ca12eb766b2da7da66dbb1698800770076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018c8eea8f240000040300483046022100a805fbf0ef525207548eb3b748a63fc556a04c7b4cbf06b01a6da9c4e1bda499022100e6cf0e6d8a2d1c1d37b093f3bcac1e3350eaf7384b9e6f08340b52aa2f4922de
 . . . . [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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