www.kn-app.com

Issued by R3

About this certificate

This digital certificate with serial number 03:e0:71:7c:ed:ae:6b:c4:a6:72:0f:ae:c0:da:03:84:0b:70 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=www.kn-app.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e0:71:7c:ed:ae:6b:c4:a6:72:0f:ae:c0:da:03:84:0b:70
Serial Number (int): 337710959414655238542387987191480669440880
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 6f:cf:fe:e8:18:6f:f6:53:b3:1d:4d:24:50:8c:ae:ac:fe:d1:f1:4a
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 59:70:17:00:55:49:ee:17:58:89:70:9c:70:12:21:4f:6c:9a:8f:1f
Fingerprint (sha256): 27:26:a5:dc:45:89:8c:60:a1:ab:cc:be:98:63:bf:ba:01:61:88:00:73:33:d6:c3:b6:bb:8b:fd:4f:85:33:22

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

Revocation information

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

Check the revocation status for certificate www.kn-app.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.kn-app.com

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

kn-app.com
www.kn-app.com

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www.artpines.shop

Certificate

The complete raw certificate details for www.kn-app.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsNkVx/q5bMD6VtbsgxZg
o5f95+30fvTIsEr1DAnmlYh55YTDfqLk12ZND1HK4B/MmIpk9nLyqA5WZGREdIDH
D07GI0mz1cbL5HqPyao7snmG2IS21oqJwsKKreYYQIxvcpL4MVNQr0TRhPqzQcQ8
nVj8C5QLVv1d9+515TfuAhNleZ55wsRftTd8HCIrvlT5+ut9Cc6OAa6GOyP84Bt3
nUgKPuGu+5L1OGVHTkL7HLtZ8Q9/mG/hEHvh8O+s/tQvQyfJ1pPTr+s65vDGF4Ky
alOV61yD7+jsRpFtMERBjfhLFFekSXEp3S1AKyaNhFfRIoA9Pep2bk7eYS64HD3a
kwIDAQAB
-----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 337710959414655238542387987191480669440880
 . . . . . . . . [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 2023-12-07 19:00:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-06 19:00:23 +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 'www.kn-app.com'
 . . . . . . . . [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 22324990318060013153385843431078293382127512465045387830288504322183052165980433492389392487981836793917834411177443221439158337534227348668900317100505236701523604029395714690197024515593374569705328376220737674429032597267978182554404805795195029850662151645677597543195259620198243074441588254496819714078638913197164134700606503403162181566886322822637487297452965746501663084970866175364465047797201804488260988510086174506564207451485376392618180050735493542172878312743328922209506600390439151113941486778767886659072020008107175414869814916937667849737797214071811441206701394063340700162536190150471399103123
 . . . . . . . . . . . . . . . . . . . . [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)
							6fcffee8186ff653b31d4d24508caeacfed1f14a
 . . . . . . . . . . . . . . . . [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 'kn-app.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.kn-app.com'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018c45ddfb9b0000040300463044022059d83f60f1cd6ef187d1b8d117ee030b2953d1a2567ef9abd00c40f515195a3602201e94090b69b7e04577a1a49fa4ccd7c7117b9d4e15da77615067a477dc62e33a00760029d03a1bb674aa711cd3035b6557c14f8aa78b4fe8389449eca453f944bd24680000018c45ddfccd000004030047304502203b9d4e6b304654344aed715ede2830fba51b5cc734186e2666c9cc87ecbfd319022100baab7a541a123d939f813eb9fa080d9f5045f80f65e910f7105c238c5a72b7bf
 . . . . [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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