*.ibbw-srv.de

Issued by R3

About this certificate

This digital certificate with serial number 03:91:c1:00:c8:2b:5b:20:ad:ed:12:8e:14:54:17:3a:bc:c1 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): 03:91:c1:00:c8:2b:5b:20:ad:ed:12:8e:14:54:17:3a:bc:c1
Serial Number (int): 310934346061920240266841489633607237156033
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 19:87:ff:ec:27:c7:03:78:65:9d:22:a8:fe:f1:77:53:d2:46:43:9d
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): df:95:8b:a9:22:5a:7d:a8:80:23:80:04:cb:6d:f2:8c:09:35:ca:8a
Fingerprint (sha256): 4e:d9:b0:02:ec:d3:33:d1:ee:19:6a:61:21:37:16:52:21:fa:07:d2:d9:42:e3:75:16:d4:d0:06:82:95:49:88

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuJqpFQT5f6MqaTnK0e58
bZ3aODADvFh4trfyJpTs/UYFXyS/iBmTc8Qo0Fee2xx7ZtbPM/awOIxgGnSPQ+ch
Re+way0puFmgg4TEgnOn/gSav9Eo9ybu4uDiPElJmtqwbXNMIR1PM7s83RikIQeV
fvbXaH2km23kVqYB/69JHYCptTSR1T+X+tM5Q2ZAAex8eF4p1WD195MzBedCiOgh
iadEPMmb2UGl1m1Vclj+U5D0YO3DFtQomSUAMZ9FqYpqEeWKpQOThiyNjQVTtEQB
CfvyA3FsIp6mPl4ATQJf9cEMO1qidypxBqT9rEp/O5FlX7BytknjOVds4CX30H1Y
LwIDAQAB
-----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 310934346061920240266841489633607237156033
 . . . . . . . . [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 2023-08-20 08:41:46 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-18 08:41:45 +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 23304114037424058537560460891778735954413253206783819123497963463445231723399781279072167984344117544363716812690944816780243197691424168342606710246431435625806485780631079130381085825874641992104503741349334952780530874506698294848157411545345879292404010844925245776418960542256995049449790357190272206838330635553051447600133048288744360077058998780112913269832975476293093932364449902549095948093343014818319517894886891870110152392198402892026783634831065167143520580954200558253682326011999958123030169512542365010900914208368059885665965874304065410360729093166188205475938407432040561910400624660390726162479
 . . . . . . . . . . . . . . . . . . . . [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)
							1987ffec27c70378659d22a8fef17753d246439d
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018a12526fa6000004030047304502210090c805ab745bf017eedd12122e3ac3cab1d7547f360ae43f7ecc9e50c2d077b602201f4d9e5876e9e303d66483df363c064db2465fdbd5e99059faf2b5f4a628b6bd007600e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018a12526fa40000040300473045022100b58d983436ee54dec56ded7caa44ad1dc254a8892197dd50cc391d6475b82b370220095d583753bb3ab05fed332dcf2b2c889dd5817f91c816f8327fa12cb663eb7a
 . . . . [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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