*.ibbw-srv.de

Issued by R3

About this certificate

This digital certificate with serial number 04:7c:d7:0f:c6:18:e1:fb:a4:20:17:be:67:4c:d6:ef:37:fe 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): 04:7c:d7:0f:c6:18:e1:fb:a4:20:17:be:67:4c:d6:ef:37:fe
Serial Number (int): 390930023146672506757066519682730544805886
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: b2:1b:31:9a:2c:76:44:48:92:94:0d:05:12:78:30:20:92:c5:92:85
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 95:51:e2:76:19:86:46:71:37:67:48:61:6c:ec:7f:2c:5b:ee:47:fc
Fingerprint (sha256): 02:f2:48:67:e4:95:ee:ee:8e:7e:0f:fa:54:78:b3:f5:e2:4a:91:40:a2:8a:ec:7c:68:c3:ef:c2:03:17:79:e2

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

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoKNJpuQqJdu9ZYROe8Q/
T6JWy7wyQNGgt1E6lZWNBT//9xXm3kW5HjdWe9zmxsgvSOD9Ep5fj/+tNJveYNE5
ed11jCOSC3AqDJ9czRRdbfu9omxu0bI+0NmNEy7urwLxlM8TOMmOh5WGXd1dwv9d
wIs6b1KynlXyi+ZYrSpL5PUYp3qO/EA/CBHnLe8C2fbQ53wYHAQ85+Kf/t87p2FU
wA/wtOREwZjXMKqH4v7WrlXQ8uHw73RWW3tZr+sCbaH4qREd+EaDfsS05lEQeoxJ
bUz1zWFS9YV50iVTdUiG24dJNS1Jw2HynoaGvGqMfdCBAnRWjYn8hawCLmR3Xc81
2QIDAQAB
-----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 390930023146672506757066519682730544805886
 . . . . . . . . [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 2023-12-18 19:34:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-17 19:34:23 +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 20278648961852060625010499787737633961927749699270512102345299220835120180496815485563168507913756958215387496722141562478433354528399230062071000502344326743770756207962997645181904889832515634594305472257237673623204872810367279444193694515272490111498188794284364794514962887188350049795810032199518845118533423892825649247906128110294644103403200753138390515031365000635727608602146991087843932353067894011238128191717109935044622739157384059661408598173140224418513352070446251281153272044757747384805023750614916117664761705621215405421111075070517806613605956391150533942099372251977013941876510828136955327961
 . . . . . . . . . . . . . . . . . . . . [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)
							b21b319a2c76444892940d051278302092c59285
 . . . . . . . . . . . . . . . . [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)
							00f100770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c7ea30f3b00000403004830460221008bab12ecdf090e14113a3aea358483c31ede3b11d0a86c375c2272227163b221022100bb719eb051c215f495114cb00d5fcaaafcb2974c0baee89349717120f81723cc00760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018c7ea30fb7000004030047304502204c95d3277f35b3ba81254c5e335550ab637c414e31436e7cf8cacb82a3519427022100eb0bc7697c5d02fe0a7f467b14f21f7cf59a419d84979392052ebe7d6e46254b
 . . . . [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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