*.ibbw-srv.de

Issued by R3

About this certificate

This digital certificate with serial number 04:de:e1:a2:e8:6a:22:aa:f5:40:60:8a:a2:61:1a:32:c3:79 was issued on by Let's Encrypt.

With 4 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=*.ibbw-srv.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:de:e1:a2:e8:6a:22:aa:f5:40:60:8a:a2:61:1a:32:c3:79
Serial Number (int): 424291751348559956628434094223818753229689
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 02:af:0a:15:d3:97:21:3a:82:8a:f3:54:7e:b3:7e:1d:70:02:25:75
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 48:de:cc:de:fa:2c:ff:71:69:30:e3:49:f0:18:5e:80:23:48:26:ad
Fingerprint (sha256): 24:d8:f0:b8:fa:89:97:da:c7:35:f4:e3:0d:e8:9b:62:63:8c:b0:30:c3:9a:fb:d0:cc:33:5f:7e:01:78:26:d5

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

Revocation information

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

Check the revocation status for certificate *.ibbw-srv.de

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.ibbw-srv.de

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

*.ibbw-srv.de
*.schule-bw.de
ibbw-srv.de
schule-bw.de

Other certificates including the domain name ibbw-srv.de

(limited to 100 certificates)
*.ibbw-srv.de
*.ibbw-srv.de
*.ibbw-srv.de
*.ibbw-srv.de
*.ibbw-srv.de
*.ibbw-srv.de
*.ibbw-srv.de
*.ibbw-srv.de
*.ibbw-srv.de

Certificate

The complete raw certificate details for *.ibbw-srv.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuEm71iwrQ4BCTLA2NkL8
ZIypX7G9ITWPvq4ZRjCRhA0S+ilChmrlSuPZe2h/7AAOTOJ+WvWvV23jTAM80LE/
5xN00FgHUDqtBsvK0PYA/m1eeac+OVFkaH9g3qSBrC/e3qr3SU46eUtQeAms34ou
5ShMQIPQkYeBwbCS9EUR2LEXGXo0T2r0m96zx93etifzh0P4LNucAVdLBqY4tvb/
Z85xYQdvTKZ+zhB3oNTALWEyLU/JSADrqJQtywNaXfsFbwCK27MuWlX1Qc5kGpYi
3BSxSuHPPA19a2ysi0x7aTwYfob4Of30QYTJxrXelA1ExyJ2wZ2dlGqd9+HaNeEb
1QIDAQAB
-----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 424291751348559956628434094223818753229689
 . . . . . . . . [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 2023-10-19 10:00:15 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-17 10:00:14 +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:12|false] UTF8String '*.ibbw-srv.de'
 . . . . . . . . [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 23264207574488546082230759646723989882601852152189528465808090916902193831530041209488405185755382206431309393766745369954874124790997267464358172177522561994827892007067515102824938064720337325230441179984683361128259528970328693341335794683858210863061256000754285389936752569672175292624428031042733453867639178722226372891441054051133916395231582682055511828692879218275097607165870435848775318882079015569497049003207682081249219211168032540442795599985075202274433550297064810082826014356190762045193205641529627674007335525971080096215178907837067995159908215752488009925947011600867150576073151128717272095701
 . . . . . . . . . . . . . . . . . . . . [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)
							02af0a15d397213a828af3547eb37e1d70022575
 . . . . . . . . . . . . . . . . [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 (60 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.ibbw-srv.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.schule-bw.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ibbw-srv.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'schule-bw.de'
 . . . . . . . . . . . . . . . . [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)
							00f1007600dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b4797db290000040300473045022100d856232f695c52b07d6b8307e720f1eeaf4c296b92db021231529e87a2062fd2022028ed519a80681ef875ea829aa15607aa31d1bc3f6397937444e130d4267d4da400770076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018b4797dbf70000040300483046022100c0d420df00dcc7b9bfffffe218f56cb29056d28774743b806a0e6e03f118ae1e0221009bcb9e7291c1b8c4f4f5832522fcf50beddab66667a49c0eac2b329bcea32524
 . . . . [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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