DV SSL/TLS Certificate for b-selke.de

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the b-selke.de DV SSL/TLS Certificate

This certificate with serial number 05:37:15:e0:9a:78:50:47:1a:66:df:dd:16:03:b5:d2:c9:ce for b-selke.de was issued on by Let's Encrypt.

With 9 subject alternative names, this certificate can be used to secure multiple FQDNs. This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for b-selke.de provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • 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)

Let's Encrypt

Organization: Let's Encrypt
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 05:37:15:e0:9a:78:50:47:1a:66:df:dd:16:03:b5:d2:c9:ce
Serial Number (int): 454306039834883946981591965267900205550030
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: a3:a1:5f:b2:24:be:bf:d9:78:5e:30:62:9f:e0:4c:11:e5:db:c8:e9
Authority Key Identifier: c5:cf:46:a4:ea:f4:c3:c0:7a:6c:95:c4:2d:b0:5e:92:2f:26:e3:b9

Fingerprint (SHA-1): c0:40:e4:4b:59:c5:91:de:11:b9:4c:0b:3d:ef:e5:f7:de:f9:e2:a0
Fingerprint (SHA-256): e6:85:8c:26:81:d0:62:b2:49:99:cd:68:e7:15:b9:e4:f5:20:b3:f0:c3:18:73:a9:b0:5a:87:2d:9b:7a:3f:6a

Issuing Certificate URL: http://r11.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/79.crl

Check the revocation status for certificate b-selke.de
9
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for b-selke.de

Public Key Algorithm
RSA
Key Size
2048
Signature Algorithm
SHA256 with RSA
Key Usage
Key Encipherment
Digital Signature
Extended Key Usages
Server Authentication
Client Authentication
Extensions
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

b-selke.de
cloud.team-nms.de
feuerwehr.b-selke.de
ff.team-nms.de
intra.team-nms.de
moodle.team-nms.de
team-nms.de
www.b-selke.de
www.team-nms.de

X.509 Certificate

The complete raw X.509 certificate details for b-selke.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAntYqhsQzr8x2RkJ3IQQN
yj1DvePRZOP94X/K/NiwFmeFBiehpx91xvv7pgIstCMZYtpRzJ60NakWOPc0iTuu
xO7DUEk9K12E0MxtT7dyJ/ijuHTeDHz59o78u46rp1HzWh6tARSKmuiQofnr7OSs
xM64xx87Mu6/2wbLuNuweW8zJD4+ugloIAwheASlHGnjyxf32wxJal2A2Uy8VG7o
JLBYt2RRdm0QIcwSdkAtCI7VraRxOuiJ+NpZIOxPuAfsz5lUjVzSmU5b7YbOlSkz
yB4HJg76Ns1gm3+PR48bS1tQgYGtbxKraAi/i7fiK3i9BNRfmxaDwy/HXGltrqU4
DQIDAQAB
-----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 454306039834883946981591965267900205550030
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R11'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-06-25 00:33:43 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-09-23 00:33:42 +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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'b-selke.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
 . . . . . . . . . . . . . . . . [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 20051261433963808879084470504183485742208331819471949885578446542520401505427614695681713883796546510052703682973177941689705901980716144710599305120621468329032929452150083749907148272295470007704899782809103557154675402227874401400929512851549693089226416524353098251491443959460099633997739357245485760132581411719949138754471741171923691459635480957946618201396137921020170642448907474959001191633428771858736841362906603465926141862347959461086736957295247956178460616585427283701677162944823393085798503302178626648336957739825680664067149982113110336182962309932789825758510558322006215494362183531852000999437
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							a3a15fb224bebfd9785e30629fe04c11e5dbc8e9
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName c5cf46a4eaf4c3c07a6c95c42db05e922f26e3b9
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (157 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'b-selke.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cloud.team-nms.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'feuerwehr.b-selke.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ff.team-nms.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'intra.team-nms.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'moodle.team-nms.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'team-nms.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.b-selke.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.team-nms.de'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.c.lencr.org/79.crl'
 . . . . . . . . . . . . . . . . [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)
							00f10076007d591e12e1782a7b1c61677c5efdf8d0875c14a04e959eb9032fd90e8c2e79b800000197a4b6d0540000040300473045022100d66f47e3613593506e26a7bc5a8ca81296e7cb88218eeee92d24c228b022e97402201b6b84b65e356ccb4d7118655aaa26e8f9c8abbb9facd55e6c876b0571624b350077000de1f2302bd30dc140621209ea552efc47747cb1d7e930ef0e421eb47e4eaa3400000197a4b6d04f00000403004830460221008e7ff39e40e4b9cc99036040e00b841292f08ac121b65c4ce46ed4db8bd91251022100cf5d024d60346ee0f6d65f3f795c17b58924174b33071a627a50a109a032d458
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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