DV SSL/TLS Certificate for rwkeramik.ch

Certificate is witin its validity period

Issued by Let's Encrypt (R10)

About the rwkeramik.ch DV SSL/TLS Certificate

This certificate with serial number 06:0a:be:e8:2f:bd:17:d1:07:1c:21:ab:91:91:15:7d:da:18 for rwkeramik.ch 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 rwkeramik.ch 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): 06:0a:be:e8:2f:bd:17:d1:07:1c:21:ab:91:91:15:7d:da:18
Serial Number (int): 526330298160095923551360846037922069994008
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: d9:1b:c3:94:30:13:b1:42:3e:af:71:9c:5f:5f:ad:e9:a2:28:5f:59
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): 99:8a:57:db:7f:d6:09:5d:46:64:d2:b2:e6:bd:38:4b:d5:b0:bc:7b
Fingerprint (SHA-256): 89:57:0e:79:01:3a:a9:ca:8b:cd:f6:1b:98:74:e7:08:1d:97:43:f6:55:cf:9f:49:33:3a:b7:bf:08:fa:6a:5b

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

Revocation Information

CRL Distribution Point: http://r10.c.lencr.org/25.crl

Check the revocation status for certificate rwkeramik.ch
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for rwkeramik.ch

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 rwkeramik.ch in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyF9NyP0dko11JVY+lLpM
8b5MUaSBHRxRUEDrv8PjJJscG9FAejXKZ3wcanZKEY1xUCel2RQdCcV9LxiO3AI9
skyraHOQr+bupSaFAc0rHLoRrLyUDnqubWy0bFZOnO/VI24YGMkV0YttFnQk8YWY
EHPeOC+x1iXaH9sywibOL8aCXwOzIusrd8iAPFWVY91IJU9+BSoFTftaqxB9FgEW
3OeDFjGSu69YZAw4qsjz03nEPH6q+As1onZZuUS06DLZqUlUv0GWOKvFck5OIxrq
oXtDbfduF/O74/VYEKEYGLXMIFDMfeMZE8hOkmB1Nty/c+KCBcohRNIEa3rqAIkN
zwIDAQAB
-----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 526330298160095923551360846037922069994008
 . . . . . . . . [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 2025-07-09 18:11:57 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-10-07 18:11:56 +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 'rwkeramik.ch'
 . . . . . . . . [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 25294657072275061390604789235067613322806506828829038550123688254370865956350942716457110554027424148054649116198812226285044292798369750911674050843147339349243423277239583751540831646377432870072370489486807895158996907619135243638100603724618265624138441597567335220774558735085959701847603113114930927832455688210414531920961429334896527519120465486059297730071878673447392244891259090583263157402240152144535838715288697988134060151811287347874188743240944830187881801943602204796104237748874296049937346724508562275497394021472277004343717822463716190015876500934458483142574640732983474030562586098841422466511
 . . . . . . . . . . . . . . . . . . . . [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)
							d91bc3943013b1423eaf719c5f5fade9a2285f59
 . . . . . . . . . . . . . . . . [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 (34 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rwkeramik.ch'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.rwkeramik.ch'
 . . . . . . . . . . . . . . . . [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/25.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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077001a04ff49d0541d40aff6a0c3bff1d8c4672f4eecee234068986b17402edc897d00000197f098afb90000040300483046022100b6dc63207b2d6136bbfba115ed7d6f8d1bf2698270712758e124553eac02156502210091c8a6140363817540bac9df1c6a90a27a4daadb9575503b21fdde1f775d831700770012f14e34bd53724c840619c38f3f7a13f8e7b56287889c6d300584ebe586263a00000197f098afae0000040300483046022100e7b419e5913661a90193ca0e4d055d75611f5dd58c73839c3c5b0d6a699407fd022100d53c960ca3a51ad926f9a6c04bc4725b6c6bf5cf3e0a5dd3d60c03cae1f06dd3
 . . . . [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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