kang-fu.ch

Issued by R3

About this certificate

This digital certificate with serial number 04:b4:40:19:67:fe:db:bc:43:b2:85:b9:99:b5:4e:a7:bc:91 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): 04:b4:40:19:67:fe:db:bc:43:b2:85:b9:99:b5:4e:a7:bc:91
Serial Number (int): 409785172281241755266101452497045969943697
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 3a:6b:61:db:79:eb:ea:d2:f8:ae:4f:e3:48:fc:a8:b1:77:51:59:d2
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 5d:e0:12:4f:5f:a0:77:ea:ac:57:26:a8:33:40:33:c8:b4:5e:e7:56
Fingerprint (sha256): 9c:86:03:af:fa:fe:70:56:72:31:27:d7:3a:82:d7:9b:91:cf:fa:9e:00:69:be:d0:48:ff:ad:4e:96:74:89:09

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs/Isz4k5IrNCrG9KgstH
bhm2ttUfpbXAtYus82zM5zCA2cJIYAsiCaKCzIpcVIm6Mua7iYd0VfaVi8ckCz0k
hyG34t183PxSMBxYkpFjpBDtASsjfLrQo2JxXrYFVfZX5/DEvrjaiis0/C03EaS9
nF//MT6i20yCyak95zXyeUwzu94oj/yWVI1G4h08c7DPhZ6OOobg5cWczx4nou1i
6ZalOHSdVsNRnbIADEVIFgzquZP/qiHEe3zew5QM2SUWlUZx7nCtbM2+JokuP9VT
69u31Ga3cPK/xgkIe1RK/3u2irLmnkAKhHXLVBZgDSojfROZdM45XHYTA3VlPspz
rwIDAQAB
-----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 409785172281241755266101452497045969943697
 . . . . . . . . [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 2023-12-15 00:07:14 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-14 00:07:13 +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 22716077552890946465142343730163904561139565138064939860817996658564631804183799392252593024560211354633196564213471880195011524634724784952162225842137832378878814147526310426282593383261007164207970233926936040398748684753574153937542882552777617486013420107520531292897751408834430734885841874833400970803731406381548826535599288526456574102982451873904308221795351989498124709586921264338177866735039690782059415249412875710161223008762716632614987829399749574209458486934179609594477206944139720911813252327453454425220827268631062633616288482445949986364126587544856241072178530362788609863877816853639616689071
 . . . . . . . . . . . . . . . . . . . . [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)
							3a6b61db79ebead2f8ae4fe348fca8b1775159d2
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018c6b0367430000040300483046022100d8a39e16c6873fbdb71daaf1fde96c2cc4cc32d7a46c21219cb62113cc46c87b022100bdf53e79e62f8dc51d693d75638e62320f07e5c8dd13ca16c909d1544565d76f00760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018c6b03679e0000040300473045022026330ee24454eff87b72f792798a5eeb5ffe60c7338d4434b077b53edd30702a02210080e45d3bc626c2189e07688f04df506c8552cb42fcf62c6230ae2159f5b620fc
 . . . . [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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