*.ibbw-srv.de

Issued by R3

About this certificate

This digital certificate with serial number 04:54:00:39:1f:eb:00:44:a0:6a:73:24:dd:f7:d2:c2:7e:a7 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

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): 04:54:00:39:1f:eb:00:44:a0:6a:73:24:dd:f7:d2:c2:7e:a7
Serial Number (int): 377033159156694152871145816675747874635431
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: a0:ca:07:f3:e2:1a:ff:7a:3b:59:3d:22:a5:95:57:ad:61:06:a7:17
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): c5:de:9f:ca:97:c8:ae:b7:51:fa:ae:5f:42:94:18:28:ea:a9:30:66
Fingerprint (sha256): c2:0a:3c:86:5b:17:a0:83:88:bf:0c:bf:7e:c7:95:7b:56:af:11:6c:a6:ce:3a:be:d9:5d:34:97:a2:f5:42:4c

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz7DsKJWQk1gXSctcUjYT
3U69Bqq+PVahlcl5RJzhASPkqKJF2k2xFm+ZBpFC4pr5ET80UFDJ7UfZ0mHPkBVY
KaHMFp/jdnO6PZ8LW6gpfl1n/XxCJ7luyWxtPDpyt7jmqDTFsiF1YWJMLSUQohtR
Hq5U8IgtCv5FMq17Y0jW8Cw4ON0QL8oDLqScXp6wjS5DvX4Sh/MNb7qDIYenCHAk
T8z80KuSG6pzMEUSqBuYwiXDHxdQrIDT6yIktyfkNY/OQe39QPIg6bao7eyFu+D4
eMYblo16faxnos8oixp3eKxM5GYqF8o3tLuQWo/EIbsiCQ+DadGwaoXdfGf0dRP1
twIDAQAB
-----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 377033159156694152871145816675747874635431
 . . . . . . . . [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 2022-12-21 23:16:28 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-03-21 23:16:27 +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 26218572861515333956355230943699968098564108954546773746694467576103070239937898261439722099672597738297141683301844574789894550149609765592289923713983107701046519791343812513436824596790354206792815196211517080565643071989211001639208244596768224192123177251150287521956311175799051249938367780993321327917364359091381530664045268233479938083433676309260792661463629354125176648561607245415665444865658076722177637404262660809992305159534451688219096578771822254193992149531546938727207555721210092633789024068600320092102070182654051967482603930507598608962076516601734591704354678666910827717015157384158104516023
 . . . . . . . . . . . . . . . . . . . . [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)
							a0ca07f3e21aff7a3b593d22a59557ad6106a717
 . . . . . . . . . . . . . . . . [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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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)
							00f0007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a00000185373047980000040300473045022100eb2dd80646148fe31f9a5b38c691c9dbf056a2bc8b92bf55b140989656be97de02200bde5ee34c5b9f440eddd2b711c186b4250af9303814f1fa2e78f0beb2219828007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb499000001853730495600000403004730450220265fa5eb134a0856c871ff1b4705a9c6772e8ac434b9c66fa216c6d8bb3330b8022100b22420aedaafb36284c1049d96d2415b737db8b501a7927836bf5edd91b80337
 . . . . [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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