beeldbewerking.nl

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:ea:7c:ec:fa:1a:26:f7:fe:53:44:04:bf:eb:f4:35:dc:a3 was issued on by Let's Encrypt.

With 6 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=beeldbewerking.nl

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ea:7c:ec:fa:1a:26:f7:fe:53:44:04:bf:eb:f4:35:dc:a3
Serial Number (int): 341128986380990677552217964269825263262883
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 50:51:3f:00:9f:af:21:21:12:b5:5e:cf:70:c6:7d:db:ca:71:8c:d5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 61:2d:50:17:62:9b:32:d8:1a:ab:bf:50:e3:94:0b:6b:63:b6:d1:20
Fingerprint (sha256): 68:20:f6:d5:c4:7b:5c:6c:62:d2:ba:ef:53:e9:a9:83:33:d8:90:bb:9d:9b:b9:44:ea:2a:96:63:94:ec:ce:a5

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate beeldbewerking.nl

6

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for beeldbewerking.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

beeldbewerking.nl
cpanel.beeldbewerking.nl
mail.beeldbewerking.nl
webdisk.beeldbewerking.nl
webmail.beeldbewerking.nl
www.beeldbewerking.nl

Other certificates including the domain name beeldbewerking.nl

(limited to 100 certificates)
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
www.beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
beeldbewerking.nl
www.beeldbewerking.nl
beeldbewerking.nl

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAouTk41nip3YgB3VacyYJ
xi5V/zJIumB7IHgCe/Da2qofgxqjBRkSxyQ73uU1yQKiNWgRbQhcco9ZdCMUnTQ9
k6mVJQ8ur08tIWRwNm2cpcy+yY3GlY+MxmfoHP0IXRow07/AniP0HZMIPpP6fyaC
Texp54p6a9hMSla1HB333f9P73+cvDmoJlN6aSQp2FrKCgcVAt5dJJWUMJZkdZGu
X+c445oMisE4X0luGlmOTMAUSxR+fXVSw1T8Iy5b3dEFZiiCrcHc+ZdsaTC6naki
RRapyJo7aE3jBCCbkXKS7NnaVJ561IF0bKZYk1owPU5hBPH8p+qToYYV7lc9Rq6f
1wIDAQAB
-----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 341128986380990677552217964269825263262883
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-21 01:48:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-20 01:48:11 +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 'beeldbewerking.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 20563477289096288571724205145972047575057082601499357661016416605752049451802231070557751748597136346917776543306346950083765916856216375333155500458861516196450609419324517858983895850899141225465638375959534004994266978058648218449737106456063310709201192686403411879384171396584202275134805539737784469177869942571927402431941349193607961583795982532301699261858025083623327419111749833106836795970813884207763305909798569979124851803041756589445278587753090029959555248031195959845462033630907961871538159153899023218656105630666910001605885136617399215394906079337002239886244910683715519470425689871062563463127
 . . . . . . . . . . . . . . . . . . . . [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)
							50513f009faf212112b55ecf70c67ddbca718cd5
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (149 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'beeldbewerking.nl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpanel.beeldbewerking.nl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.beeldbewerking.nl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webdisk.beeldbewerking.nl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.beeldbewerking.nl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.beeldbewerking.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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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)
							00f10077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016f265af12d0000040300483046022100b86c7bca86b4aaf604882e8c2899983bded120c3e872d9ca1f88989dae6dc517022100f5c3f46ad3e085802714c87ca02c643994866a8e88f051777327e104921ce2fd00760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f265af10a0000040300473045022043c10eb7103ed8dfe76c695e671d6c232b3079ff908e40be91efa2959ffcd87b022100e898ba5bf2935f79f9275e05a00eaeb57d58ebf8248464d026169d000429799e
 . . . . [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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