DV SSL/TLS Certificate for essenaufraedern-wsf.de

Certificate is witin its validity period

Issued by Let's Encrypt (R10)

About the essenaufraedern-wsf.de DV SSL/TLS Certificate

This certificate with serial number 05:0d:96:3e:99:e1:e1:ac:ad:cc:e8:70:f8:c9:ae:b7:b4:55 for essenaufraedern-wsf.de was issued on by Let's Encrypt.

With 3 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 essenaufraedern-wsf.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): 05:0d:96:3e:99:e1:e1:ac:ad:cc:e8:70:f8:c9:ae:b7:b4:55
Serial Number (int): 440184809671651248606007021026293386294357
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 7c:b7:94:21:f6:78:58:f4:db:2d:cb:ed:2c:37:f3:c4:4e:f6:9e:68
Authority Key Identifier: bb:bc:c3:47:a5:e4:bc:a9:c6:c3:a4:72:0c:10:8d:a2:35:e1:c8:e8

Fingerprint (SHA-1): e1:b8:8c:b3:93:f1:a2:e8:08:1d:5c:27:a4:f7:95:aa:ab:34:3f:70
Fingerprint (SHA-256): 5c:72:6b:ff:78:3d:81:12:61:6e:93:85:a3:e8:13:0c:c5:fe:19:66:c0:b6:62:e8:a1:43:a4:d3:a1:c2:00:53

Issuing Certificate URL: http://r10.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r10.c.lencr.org/86.crl

Check the revocation status for certificate essenaufraedern-wsf.de
3
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for essenaufraedern-wsf.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
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsd/91/pq7IRWkxwgzE33
jyPL1UUP0K5HYGRc8ZDqXp8G2o4aEMi8StrZXXQD7yExRMxSLQ52M2mGA7aXZsI7
aElip1jPKFhOAW45T0k4B99AvDiT5iYs5bAH0Ggk5egv/foEq26W5DYDVEb8T7i8
tfsi/C5ieRvy1jRZYxUistUFG0eF2cNy1jaSdva31KTa0mAMUL0K9p+kGDFrgHsk
43xV9glzwWNxbubY+YbxrRY9b7BCNOWfm9QXVT5WmB/26X9Rol35uI2hEQ82cvdW
Vt/GQZp8YCpWCqh8xtOSvjbfb4KxDhR5q2F4OJUOdc75x6zH3EeyoqBeiAXUfnwD
HQIDAQAB
-----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 440184809671651248606007021026293386294357
 . . . . . . . . [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 'R10'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-06-08 23:01:23 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-09-06 23:01:22 +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 'essenaufraedern-wsf.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 22454634342210693670469730634844296626823303439515626508179754666216393395503374850065991483026840586865645526902081618539803353628015691744119035104385290164612763355503991804860599090769441365892066134230657906817738397855529180666526896676210682506369136274103021165736673597207920959493272558872639034760549227498079885620836387007339166245845329711400108451416385069733762796488910649144568641948216764984898042055175303280017158985051407571236135789321125784415493770516056926468706294462665343344832005501620260057523406624557518052807742143184911776086537912935920647672494803352152143283988758366707712262941
 . . . . . . . . . . . . . . . . . . . . [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)
							7cb79421f67858f4db2dcbed2c37f3c44ef69e68
 . . . . . . . . . . . . . . . . [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 bbbcc347a5e4bca9c6c3a4720c108da235e1c8e8
 . . . . . . . . . . . . . . . . [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://r10.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 (86 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'essenaufraedern-wsf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.essenaufraedern-wsf.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.essenaufraedern-wsf.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://r10.c.lencr.org/86.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)
							00f000760012f14e34bd53724c840619c38f3f7a13f8e7b56287889c6d300584ebe586263a0000019751fc889a000004030047304502202193bf1e34ca38ce9ed06fb72f2fd6de40621e4dae3a553d22eb87a06f18dc2b022100b9a5ff60e3ce107de6bc40743f17675b2753a69cad395a6a4c7a1463fdd2cafe007600a442c506496061548f0fd4ea9cfb7a2d26454d87a97f2fdf4559f6274f3a84540000019751fc9077000004030047304502202416e24c2c537983ad1be303ad18df30ee3b1eef1f8444a7f85a241ce0dbe2e1022100c951d4879734bbe5b7672150e456694a42b58118a60b5df03bc155ba7b11bf28
 . . . . [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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