kang-fu.ch

Issued by R3

About this certificate

This digital certificate with serial number 03:81:82:77:9b:39:d6:84:92:fd:bd:95:b0:3f:ae:af:fe:33 was issued on by Let's Encrypt.

With 2 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=kang-fu.ch

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:81:82:77:9b:39:d6:84:92:fd:bd:95:b0:3f:ae:af:fe:33
Serial Number (int): 305406703799215890328390446612058802748979
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 6c:7f:df:a3:96:e4:8f:54:11:99:dd:51:36:b4:3e:f7:2c:d9:a8:c3
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 70:35:81:29:21:b9:ee:4b:03:4e:b0:86:81:27:d9:c4:f4:35:77:4d
Fingerprint (sha256): 7a:9a:6d:97:d7:6d:2b:09:1b:0e:cb:6f:3e:21:5e:55:d4:c7:4b:74:53:b2:80:1f:32:3e:a6:f2:e3:20:c4:46

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

Revocation information

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

Check the revocation status for certificate kang-fu.ch

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for kang-fu.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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

kang-fu.ch
www.kang-fu.ch

Other certificates including the domain name kang-fu.ch

(limited to 100 certificates)
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch
kang-fu.ch

Certificate

The complete raw certificate details for kang-fu.ch in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2L2pxrfwGCAuXcQ6QqUb
aGDOdlm6vcE084OwsAeMDx41t1AbAYJp0YoXkrolDMkBf0Vq0OU0cjrPSuWxqiWY
I3XHie8eAXjiJk8iAf45ek5SU9UhW9/AYkyi0Zr0FhD6ACt3wYrmLCa/3IjkzutL
iWZlC4X4SxZ1yTANS9XZQNEk1A00zfHTgkfjLjX/WmNMZHYJAms3vkR7TzA3dJSK
3AgoQdgBEfzFltRJ+HfSyMOvGYCXuswIYpmnE6RZqGBPwPMGGT187DtmYSx/8whR
e/h7DNlp3p+J4d1982qWil43Apj366h3dwLvpdlLm6t5IdOmcelHOhLxJoQNIJ5A
AQIDAQAB
-----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 305406703799215890328390446612058802748979
 . . . . . . . . [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 2023-10-16 00:07:13 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-14 00:07:12 +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 'kang-fu.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 (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 27361000276672037579253938352236588952853087411272939770787320927516857872365855532895891280743181665600872873837026694641807295407214363948126818946050188181302468875229617213230307349843903689431554968596228149743891272304600315131151677037405899382446135763329504005600270721558211647482770989776984323694195386060409753998535501369648638513694826497098438815660209625945997128561259589274480215655620932225281257001136024286889448701935739356564698598054059810276087719482171521435126220119849901510369837652672834972473314714485948113828368750856747744434883967332177619715611331437521866648145516214265749323777
 . . . . . . . . . . . . . . . . . . . . [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)
							6c7fdfa396e48f541199dd5136b43ef72cd9a8c3
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kang-fu.ch'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.kang-fu.ch'
 . . . . . . . . . . . . . . . . [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)
							00f00077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b3605d4a90000040300483046022100e67d12756a92004a7cb6550651d7a5e5843888e28af6ba64f0ed7a67c8756a70022100ffe02df55f5bf58bc784139689f63decbc0e19d84ddcbab5c2b43640d45a0184007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018b3605d4c500000403004630440220406dead105a71d4b170d5b424d5f8a874b3a3db9c702c52e7348d089fe94e893022070f43076424bf68ef2ac80eed64a383b1c4bf37361c56c3276c2c9e36a7f1575
 . . . . [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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