wlanowski.de

Issued by R3

About this certificate

This digital certificate with serial number 04:92:45:e4:03:01:d7:e1:90:e9:53:24:e4:68:a5:40:e6:83 was issued on by Let's Encrypt.

With 3 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.


We have idenified some issues with this certificate:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • 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)

Certificate Subject

CN=wlanowski.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:92:45:e4:03:01:d7:e1:90:e9:53:24:e4:68:a5:40:e6:83
Serial Number (int): 398223269933884176331293092493212294112899
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 1f:cf:51:6e:13:0b:81:d6:55:cf:f9:89:57:b1:3f:a7:23:20:2e:5b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): bb:a1:b3:b4:13:04:ab:48:e6:63:b9:95:a9:6a:ea:b1:d3:4c:90:04
Fingerprint (sha256): 77:72:87:ac:96:38:fd:11:20:6a:65:73:65:74:08:0f:c1:cd:08:2d:82:4e:e1:88:fe:f7:a5:11:85:5d:e4:e3

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate wlanowski.de

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for wlanowski.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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

webmail.wlanowski.de
wlanowski.de
www.wlanowski.de

Other certificates including the domain name wlanowski.de

(limited to 100 certificates)

Certificate

The complete raw certificate details for wlanowski.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwo+QD/tWJZYmZY6n+BuA
xZfrvsKBYq8lA9Aa3EobUfSM70i2pnAXS6R7So283FbriFaQge1fvLMCh0GbOvs0
Q2Fjd6KIYCAStoegegpdheDi0vjydHhICgMYbGDM6DriA7D1NXYo0BpW++pLidI2
fjrRSI2Wty6InIObQiU6FHwVVcCzNJRXhgvEu6fuNpZra8veACRgpch+YrpTqKwu
Tx1NL+Q2pwNcdL5MrfvD6eGolkgGvGSpkGqOCkKKM0taATbrylfK4JGdS5pLo6O4
jUUlWXMyseQm+cKp88rOLzYUdruI3qBBCJA1J/ePTB/g3p32WsuQDhoxB400VJmp
ZQIDAQAB
-----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 398223269933884176331293092493212294112899
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . . . . . [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 (countryName)
 . . . . . . . . . . . . . . . . . . . . [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 (organizationName)
 . . . . . . . . . . . . . . . . . . . . [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 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-07 04:36:17 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-07 04:36:16 +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 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'wlanowski.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 (rsaEncryption)
 . . . . . . . . . . . . . . . . [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 24561024590921226460907592083898796438835068986628657848019826943913453805859276618992979042479974440967174339378259416649050663990637984031786591323621229940251125471678174164182293332501177856225673644459529763863159200684785808667586356934783322085989315917173598589066676768108941928645822628563707368708483254590234182330351603742832835333826750916328873153715054002818446071048539982984500812502714152459020287226701145909143265281627449564742543497858171429664782897315644568876131348221503690081815406612379887450612249132628007135585254289617753964553379527569715957107923390088841481362925832046353499924837
 . . . . . . . . . . . . . . . . . . . . [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 (keyUsage)
 . . . . . . . . . . . . . . . . . . . . [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 (extKeyUsage)
 . . . . . . . . . . . . . . . . . . . . [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 (serverAuth)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [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 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							1fcf516e130b81d655cff98957b13fa723202e5b
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (73 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.o.lencr.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (56 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.wlanowski.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'wlanowski.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.wlanowski.de'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [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 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . [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)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d821124ab00000403004730450221008c2946516f087b8e4bb64005023662c4b8ad9ede59eb1cda8a32ad69de961fec022033fc2cef98fa58cb902dd21bce6a9aca814f12de8f6c7883ef663b3e7c2d005b007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018d821124a90000040300473045022056ea0d7d84956f0e262a426d3941bf623796b4739c26925d2d45352c3376a0cd022100e9e661ae7a7c6d3c8383f40d3d88ccfaa8db2b8980cf813f15a9de5bb2394974
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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