konacom.nl

Issued by R3

About this certificate

This digital certificate with serial number 04:ed:8f:3e:0a:05:fe:66:d3:dd:fb:f6:62:c5:b2:1a:c3:1e 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=konacom.nl

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:ed:8f:3e:0a:05:fe:66:d3:dd:fb:f6:62:c5:b2:1a:c3:1e
Serial Number (int): 429286466416404844908984055672258340504350
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 30:d7:cb:2a:ca:26:4e:c5:31:cc:b4:0b:4e:69:cc:cc:fc:3b:7b:9e
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): c2:af:00:3a:16:49:3e:a8:62:d0:d9:44:43:31:28:13:6d:3b:38:5d
Fingerprint (sha256): ee:c3:3b:5b:e6:41:8b:3e:9c:12:3b:d2:27:9c:62:32:0f:d0:82:b5:d6:ad:73:05:9b:4f:df:3c:44:93:a7:ad

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

Revocation information

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

Check the revocation status for certificate konacom.nl

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for konacom.nl

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

konacom.nl
www.konacom.nl

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Certificate

The complete raw certificate details for konacom.nl in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAgmXNQq/XoyFz6kHhf03w
jGiu32gGEVEBaXYxZb8F10/Qs1TaUhUXZtBfbgzNsXBIRx3ML1DSV6A99OK5iDAZ
D6r4t9Kb2UxEUCTGG4WZVKPq1+N2+zEhJO40+FHFm/oomgLnwjlistAPkd7IEYw3
WulgpLsO2BQBZho6fVs+q2iKJEdyPfHQ8HRIFAT9bcCpla9nyN1Z89yFHesFy6Rt
ChpeyZRH6QGV9NAzE6cugLudLbF8qS3LO41dcuhrpen9mbrZPicxaX8FkGXnXilX
85XI8aX+cakEHKeklkzT8qFrKn6/9L3LhHSy5udH3aVHCXdEFSnYBAtkZXzk8RQb
vQIDAQAB
-----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 429286466416404844908984055672258340504350
 . . . . . . . . [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 2024-01-10 04:31:53 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-09 04:31:52 +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 'konacom.nl'
 . . . . . . . . [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 16461179983573592468107439945685402760929058457959722106039360670847587089769584015805636865333109855678673878502572290316437832044678431762392748771231419541002657337449952883439345306356798668313749147424149813433164336746916878392585851795592228226098748150510705291388889529493065729698878833717013250974319900271628518192457025528859644857687350333659248734442316221200789794606191189522748205470304122835079479681289547730696243682107678740592659567894209837494488246852205115275464357488121849965342396900564063290757889077105728769073830738820483842254532762447664100915209423484730806230861525422622918319037
 . . . . . . . . . . . . . . . . . . . . [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)
							30d7cb2aca264ec531ccb40b4e69ccccfc3b7b9e
 . . . . . . . . . . . . . . . . [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 'konacom.nl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.konacom.nl'
 . . . . . . . . . . . . . . . . [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)
							00f00075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018cf1db0b8c000004030046304402200cb64295e8909ff0eb9a56f54d83c7edf685a58f8d20f96f985a030ec01356120220519da99b1d93a7efb72ecec7c137985cb8a60cc2588b538abb54996b6f74840e00770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018cf1db0b8e000004030048304602210093ede0ef4c504b09f41e8553f3528dfcd7b1e10032ed1b86d53663df6389977d022100c2126ff2de2e3f6fa92405a183580921c0b13502874c536658c199e5a060dbb1
 . . . . [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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