DV SSL/TLS Certificate for namu-ev.de

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the namu-ev.de DV SSL/TLS Certificate

This certificate with serial number 05:8f:03:99:c0:04:9e:74:a0:ab:fa:1c:35:c1:b1:36:11:f6 for namu-ev.de was issued on by Let's Encrypt.

With 2 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 namu-ev.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): 05:8f:03:99:c0:04:9e:74:a0:ab:fa:1c:35:c1:b1:36:11:f6
Serial Number (int): 484226594128490740261503622363276996121078
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 3b:7c:bd:5c:19:fc:84:a6:c6:e9:84:57:bf:69:ab:ea:ea:fe:f5:72
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): 29:3a:b8:6b:18:ee:23:e9:73:c2:38:6f:01:44:48:3c:bf:c1:dd:46
Fingerprint (SHA-256): e8:91:9a:77:86:49:3c:de:b5:4e:b4:a0:2a:87:43:81:7b:f2:4c:d2:95:cf:a0:3c:94:a0:e8:32:0a:ab:71:3a

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

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/119.crl

Check the revocation status for certificate namu-ev.de
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for namu-ev.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

X.509 Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmSDizRjtn0M/gn9xh+aV
yVU4nuQLP3CCKxMgMpbYMRFZntBv1ornCv8yM+KBOUPKLrtOBDiyFsN2DsXK/aDq
zPIiHRjn0QxggXuyejwMDpniKrVOPzoh0xt345DeLISVQ1qs0LqA4L4YKsWYi1q/
sAgH1hIOhUc5DCIMZB1188aCfB+wMxQM3ebp2SEumcV7U22JdBp/aybvKElvGbsT
p6gRpwtvKX3J2KRhrkIITiA3hHBIWNWAOy+2pTD9rGfL+aquRC4OzmCLMVzQDt3h
rkKbjDyDhHs4ubgWqHBD2uzIO4Kkw/mxrsBJ8JN/YOcvpiIeEPY4LXYrm88H2uU6
9QIDAQAB
-----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 484226594128490740261503622363276996121078
 . . . . . . . . [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 2025-07-04 22:32:14 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-10-02 22:32:13 +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 'namu-ev.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 19330677322228992819067039099208880490490973970701574367828388317307674109019505127234675816254832090417833493438528778299039927317337169355814311385619348534554344010146622523560448688776166751489856277920068477119677873745258571255479636926353691353969972839778949693815898397484630047713909534130290716480334844045712087205998840676518568719421713961124870732214737482922822931747985013784836496745800171294106007631943121279453275980437359487585316064706752145067994377022293651851455343926957914649199132862840748687819960265593301618161789935432523656581872970085443157187244597509781341081311976952371920321269
 . . . . . . . . . . . . . . . . . . . . [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)
							3b7cbd5c19fc84a6c6e98457bf69abeaeafef572
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'namu-ev.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.namu-ev.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 (40 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/119.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076000de1f2302bd30dc140621209ea552efc47747cb1d7e930ef0e421eb47e4eaa3400000197d7c72dc2000004030047304502205dad0abad7dae17eb42e0cd40a3f765fb1cfc93899f510d924fc88c8b5e77ae5022100e2b41e79a66aeae201a04ed357b83cc5f5f484a2fd015efe5ab4dd7ae83bdf1d0076001a04ff49d0541d40aff6a0c3bff1d8c4672f4eecee234068986b17402edc897d00000197d7c72e0d000004030047304502201434e5d776957081187c9ebe605d4c121f3142216d6b8337730fdbf253ccb979022100b76c23f9be516980e5e13ea1494f22aab1873fd44d09d17f428ea5afa6c0cea2
 . . . . [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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