DV SSL/TLS Certificate for mensaservice.de

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the mensaservice.de DV SSL/TLS Certificate

This certificate with serial number 06:b6:5b:57:eb:96:ae:32:2c:1f:53:c4:06:97:86:6c:2c:cb for mensaservice.de was issued on by Let's Encrypt.

With 4 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 mensaservice.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): 06:b6:5b:57:eb:96:ae:32:2c:1f:53:c4:06:97:86:6c:2c:cb
Serial Number (int): 584726522625919792386159609472694266637515
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 78:4f:b3:2e:91:3a:15:f4:0d:c9:f3:cc:5f:3d:87:92:5d:53:fa:70
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): e1:83:60:87:4d:82:24:23:c5:fe:44:ac:8c:05:53:66:a2:27:d1:14
Fingerprint (SHA-256): f2:91:bd:e9:d7:7d:51:51:18:7d:ef:b5:be:b0:82:13:41:cf:e3:9b:f2:74:58:7d:01:c5:61:f2:5d:e1:d2:6e

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

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/76.crl

Check the revocation status for certificate mensaservice.de
4
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for mensaservice.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 mensaservice.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmLvh0DtCyOw8cxOZv8b7
RLXuwJxUzXnU/XWv7cFPYKbZBo60GTG0LZ3NK19xyDYMx8Jrq4X6Hsex//6LAEOz
A/t1uDRE10696EsEpoP9kCRSLdYd3JNLfXwhemA5VczXjPJPZSLVoCEoUIxQoZaX
4t5Rqz+SCfdEFRppZyiEhhG7eebydizpSSo+KN9+9hVKgtxgdvF7VygOPDIk6EXl
/hEQdTekuNRqUhxN9rZ+fWNg1W+uJN3ZMtj9eQ7NqZKgT97ye9/azq8k2T3iwA0b
/jfSi/SFPSXDhnigw6Ui6bNGQvbAVaTetWxVIibr4Cd3A6mbg0w4T+SZ2ljDZV0A
TQIDAQAB
-----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 584726522625919792386159609472694266637515
 . . . . . . . . [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 2025-06-18 00:46:05 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-09-16 00:46:04 +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 'mensaservice.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 19280870463311464144422314256415145429086766131809044566907716475830845217000107113387293254455418003174558553259016665752912376754340937446141185597773328616550872828632791341518048312043552041596770132869173557201270920851597270566053533230722078130359706601152815657576373102427802435921096759345453254091278808177146217215175478435257472180281839411625763673737775002453618845514543813549211992265533650699396020645245462139363960300406851498020658185871045147086178644068248350139610413947311958724691467539284987125805246862440497406436001537025907784840932327225992481645831501267373118797515835847341709787213
 . . . . . . . . . . . . . . . . . . . . [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)
							784fb32e913a15f40dc9f3cc5f3d87925d53fa70
 . . . . . . . . . . . . . . . . [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 (90 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'login.mensaservice.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mensaservice.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.login.mensaservice.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.mensaservice.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/76.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)
							00f00076000de1f2302bd30dc140621209ea552efc47747cb1d7e930ef0e421eb47e4eaa340000019780b59e8f0000040300473045022100e662830cc3eb8265f98efa627f8b5f6774faab2efcaf38a62817638b30089c11022053332fdb9e42ce9197a1c26c0da335af3c200c4c5e516702b0043ceb592fdd3f007600a442c506496061548f0fd4ea9cfb7a2d26454d87a97f2fdf4559f6274f3a84540000019780b5ae2e0000040300473045022100e3fa81f55844cd1e5c382414ce2a05215485ce9e42be8cd3aabda1ae066d249302207aa2246bedf068e7cb9cfe2e0c7c8daf90acef74bd6e21e662c6a2820a763c57
 . . . . [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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