DV SSL/TLS Certificate for webmail.wonnemar.de

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the webmail.wonnemar.de DV SSL/TLS Certificate

This certificate with serial number 06:84:e1:eb:28:ca:96:74:fb:8c:7b:f3:8e:05:c1:b3:e7:f4 for webmail.wonnemar.de was issued on by Let's Encrypt.

With 7 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 webmail.wonnemar.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): 06:84:e1:eb:28:ca:96:74:fb:8c:7b:f3:8e:05:c1:b3:e7:f4
Serial Number (int): 567891285340285755961526859669710400907252
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 12:d7:e6:cd:f3:ba:49:aa:ab:db:28:20:7c:41:c8:78:2d:c2:e7:7f
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): a8:8d:26:10:30:c1:76:1e:e9:ef:6c:23:2b:2b:80:df:f3:78:ea:77
Fingerprint (SHA-256): b6:1c:29:35:25:52:c4:4f:1f:e0:86:23:94:15:f4:72:33:3a:ee:4f:73:59:0b:39:94:8a:77:fe:23:98:b4:83

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

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/117.crl

Check the revocation status for certificate webmail.wonnemar.de
7
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for webmail.wonnemar.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

cpanel.wonnemar.de
cpcalendars.wonnemar.de
cpcontacts.wonnemar.de
webdisk.wonnemar.de
webmail.wonnemar.de
wonnemar.de
www.wonnemar.de

X.509 Certificate

The complete raw X.509 certificate details for webmail.wonnemar.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA19imF5PsNec3IU+tsiiN
6PR8CjUaztH0ojREGUHEnIxAZ2iqbt/COG8wVKeBQ4RamcyqBlbfuYgQ/cInWBC9
PZBCw5Po9ByO6/ZpM4tx9JsBXN3b4bLRm4b3HQyaJMlJixSiwd3aO0tciDEjgIva
s2kvR9cTjBxyPJRK+P501HQkuPRakBElF/FjiYUNDeqJe+EkEDyKF6ipXfrHlecA
TXnCmKrUvKAc4uoMLyAxycBVI0K/0u5Sbp6+BSdrVWVFFyUxRJUYpxuWxfsxTMqK
cOQ6EEwRxo0yg0OclOwO4UmNJiJt9efxa3nNtPlDjivLOA/mVm/GHnFASm2kTvpG
kQIDAQAB
-----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 567891285340285755961526859669710400907252
 . . . . . . . . [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 2025-05-15 13:44:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-08-13 13:44:51 +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 'webmail.wonnemar.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 27248069071375171756076564330322875380380341759905884648477293850255891357514928868050377622486354264536886732198586660788794668513660654561021196741920736594350223353658705406985417430038949284345990234931321083314681234625714835552945663515993865731389897754030584487549239634920767092604748916200767630976877259668310007868813872079241195562724267682876441834517500370388130964943012107098552459438442712874558861215630609146409940576857189785593332562704901786453078344436637868913378467211223335804292459803248901112660915786334213179655574235854597270691147871575378374201241178539913889552718900182232252171921
 . . . . . . . . . . . . . . . . . . . . [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)
							12d7e6cdf3ba49aaabdb28207c41c8782dc2e77f
 . . . . . . . . . . . . . . . . [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 (144 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpanel.wonnemar.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpcalendars.wonnemar.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpcontacts.wonnemar.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webdisk.wonnemar.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.wonnemar.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'wonnemar.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.wonnemar.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/117.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)
							00f00076000de1f2302bd30dc140621209ea552efc47747cb1d7e930ef0e421eb47e4eaa3400000196d466672900000403004730450221008a37239655501c26baca99fd429255f5847205e228f75d7dfa1c3f2a19fe6e6002202a1090b072fc439849fea6afe8dc0cadd8fdac13f98f6d4af1b559a41213423300760012f14e34bd53724c840619c38f3f7a13f8e7b56287889c6d300584ebe586263a00000196d4666738000004030047304502205eaf81c83eec1ff47759e6a71fc29e77b1e83154fc2961434096f734f639d460022100fdba7b53c6d3a63326b7519aea2ce0b5b69514243794bbfbb3106d23c846c011
 . . . . [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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