konacom.nl

Issued by R3

About this certificate

This digital certificate with serial number 03:7e:6d:53:06:73:4c:dc:47:f4:4e:9a:44:12:68:a7:8d:e5 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): 03:7e:6d:53:06:73:4c:dc:47:f4:4e:9a:44:12:68:a7:8d:e5
Serial Number (int): 304357752970328284032368430607406413090277
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 81:22:99:96:a1:bf:b1:6c:14:1a:10:e2:40:d0:c5:1b:23:31:7c:48
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 3f:d7:5b:ec:07:d7:1c:32:09:76:57:52:ac:e8:a7:4e:a5:25:ec:52
Fingerprint (sha256): 4f:30:d1:dc:d3:f5:48:93:cb:6a:8d:d2:9c:af:71:45:7f:80:aa:95:3e:18:88:91:31:e0:e1:12:8d:e0:0c:b1

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApJvQZMGn9lCzMM/+KGbl
/HVAaS4XNiXOeaIzcv935j7MbXFK39TqGsIJprr/O/QS4T0SDUX1Cmmwggb5zHbQ
l/2UlorYYuZ/wYqlyLCwZWdykKIDpUf1q4OEETXAQrxiP6aUZrdtrvxoEgOa26Xk
WSJgoCNGFyGpUpWZ2XdLw5d4734DXLRaa63XfaRNiERe5s+WQv1YjJftkor1CdZm
C8fGOMAfrIuZqPyVkBk2zE5EBe/D+dCxiWbCeB5BS47Tqpyh0pShTbc2gTxQzc/E
QeHPC3a5eL2PzhraQ4eAZ3MkGg7UfG62+AsbajmX8cDM46mSbvfuGv2uadKaksld
7QIDAQAB
-----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 304357752970328284032368430607406413090277
 . . . . . . . . [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 2024-03-25 04:34:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-23 04:34:51 +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 20779916779957186808818308675522857471951531940612155939236606157739090030438177499855049559150862253186374202031502657783378775633669195408386495296656919341767273310022014531078964900856396673917434855557746064836316941194748730444200960073298984082994899418445372736468195325075105800814197471132016428254519352182267548765843453138072168957770046737370884293518502333916507652723963666871229659543557716431958303692923129151313287949650232943905814044190177408743369608608300239056541390810529914794304394788281476694063319586731516236147060038210900210790219057976442942184975201321064625333530488967540238802413
 . . . . . . . . . . . . . . . . . . . . [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)
							81229996a1bfb16c141a10e240d0c51b23317c48
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0076003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e0000018e741abc540000040300473045022034520051b8d088e066ad3f00fb7a4c00babc7febeb4368e33210529dc125aa38022100b70c602adf4c5907f39015344b8f42aef1965e3bad2c553c89b27c4988b3550700750076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018e741ac465000004030046304402200810641573becf5fed004d78505ca30c8bf8fa88418a8babb4de473483e31fe00220183db466cfac0c5a680e85d66e647b0ecbf23903b4702a11831d2fcb87019eee
 . . . . [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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