detechniekschool.nl

Issued by R3

About this certificate

This digital certificate with serial number 04:f1:9a:11:e0:cf:4c:c6:ca:9b:2c:ed:7b:a1:18:3e:a1:ab 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=detechniekschool.nl

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:f1:9a:11:e0:cf:4c:c6:ca:9b:2c:ed:7b:a1:18:3e:a1:ab
Serial Number (int): 430661988095068370460931860725487407899051
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 56:d6:38:33:fb:64:9b:99:d3:63:b6:3b:cb:c8:0b:67:40:70:56:03
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 45:c7:3f:36:ff:4b:70:a6:8b:da:09:ea:49:9c:f0:68:e8:ff:c0:89
Fingerprint (sha256): 6c:59:60:78:c4:08:32:1c:b3:b0:48:c2:fc:3f:cf:ae:bb:a2:45:d2:8b:ea:1e:4f:4b:43:c3:98:dc:93:00:bd

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

Revocation information

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

Check the revocation status for certificate detechniekschool.nl

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for detechniekschool.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

detechniekschool.nl
www.detechniekschool.nl

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Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFCzCCA/OgAwIBAgISBPGaEeDPTMbKmyzte6EYPqGrMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzA5MjgwNTA5MTVaFw0yMzEyMjcwNTA5MTRaMB4xHDAaBgNVBAMT
E2RldGVjaG5pZWtzY2hvb2wubmwwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEK
AoIBAQDwzwM8KssPIXjfJUDhnbhovRg83o8bNrPz2vHu0Uu6mrM2HFVKeYOreSZu
AQ+FY/DgCe3HNsGw7KfavyIZl0kxh2CyCe6D1+hoJMEiIL2xuPyK0HnlZXRS1LRg
jjSYQOO/WN4YSnTH8xIkwy2RtCLwQmjOGOVfoPeFkxRAPsjoGeWsqQuriZa7ME9a
fL7oJfzLydthT+RUY5tQPBpApdls52y2eiyr4StdQIvIa/ZfmVjkKxUXgPsm9Lfl
8+Ckc0/Y5dbMtqrv7u2u3TX+8QrjYsrviGweGlIyEhWNEcCAU9ZB/nmA6ACXt8qf
l6dSU3qoZDgJZeyg+Ne2hQL/8vvBAgMBAAGjggItMIICKTAOBgNVHQ8BAf8EBAMC
BaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAw
HQYDVR0OBBYEFFbWODP7ZJuZ02O2O8vIC2dAcFYDMB8GA1UdIwQYMBaAFBQusxe3
WFbLrlAJQOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0
cDovL3IzLm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5j
ci5vcmcvMDcGA1UdEQQwMC6CE2RldGVjaG5pZWtzY2hvb2wubmyCF3d3dy5kZXRl
Y2huaWVrc2Nob29sLm5sMBMGA1UdIAQMMAowCAYGZ4EMAQIBMIIBAwYKKwYBBAHW
eQIEAgSB9ASB8QDvAHUAtz77JN+cTbp18jnFulj0bF38Qs96nzXEnh0JgSXttJkA
AAGK2mfj2gAABAMARjBEAiAv0CvHtwQzfYjSSmkNeT1D9snKhk6GY0zGj76a5agw
tQIgQbwDEIA1bvm8hN2JRopK+hVG36UWDXZRKYXzJ/b5Ar0AdgDoPtDaPvUGNTLn
Vyi8iWvJA9PL0RFr7Otp4Xd9bQa9bgAAAYraZ+PlAAAEAwBHMEUCIAXrhUsfHeWd
EOdxZdzgVAQJC0rxlrArpQBRmyKUe1HEAiEAnH6vv9t5vbPbYuorW/ZwJXZw8ACi
OkTBcz+t/90tJ/YwDQYJKoZIhvcNAQELBQADggEBADhPNhy5HHR/W9W4F7O5c5HH
8cJ81rWg3PRMJHYJst0TNU+LwrFHNH4O7ZCCg1g8XgMGeiRtMmwM9+KNBanXt4Yg
ZHBseC/G8iC49UP0uHzbt3+RoXOkjJiSSjPmixTkCIMFiOF57ltKx90ctHk8TAvu
JAuECgpRKq8YUZOve10VMKcqV9GWKNdIxyx3GjT0WfZze/shh1kNuOsbkLFmozDr
o8asRxQYCseS6BdmgXMc+A/mhHubedbVZEX+FkmtG3afoCLb3S3iRDbrgavlfetV
eQtFXeouMxRi6isVuxBUaXepN6kHSpwze4UAnSUO3CkQ0l+8sqPks8W/20/q0+8=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA8M8DPCrLDyF43yVA4Z24
aL0YPN6PGzaz89rx7tFLupqzNhxVSnmDq3kmbgEPhWPw4AntxzbBsOyn2r8iGZdJ
MYdgsgnug9foaCTBIiC9sbj8itB55WV0UtS0YI40mEDjv1jeGEp0x/MSJMMtkbQi
8EJozhjlX6D3hZMUQD7I6BnlrKkLq4mWuzBPWny+6CX8y8nbYU/kVGObUDwaQKXZ
bOdstnosq+ErXUCLyGv2X5lY5CsVF4D7JvS35fPgpHNP2OXWzLaq7+7trt01/vEK
42LK74hsHhpSMhIVjRHAgFPWQf55gOgAl7fKn5enUlN6qGQ4CWXsoPjXtoUC//L7
wQIDAQAB
-----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 430661988095068370460931860725487407899051
 . . . . . . . . [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 2023-09-28 05:09:15 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-27 05:09:14 +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 'detechniekschool.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 30399274927712362998026922870088734113584413261195146506531006340688802836986278521407385885662928952787239608413955027449382107623870553064933406001574513837342941493659804225495757583223844572657488516832276746308355158075473323411859702096345764374660338026521364624745924730083346396430964107548662340714047505486149617346140769290028770697920324259404033871113981951949073868728188968965329493991464355034329332591772475946933886960256766606890715001802431015425282651083416414719307956891892225040141960677650823679167019895461432018230819527271674680885276872353140351895232273636460017310927888236082097224641
 . . . . . . . . . . . . . . . . . . . . [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)
							56d63833fb649b99d363b63bcbc80b6740705603
 . . . . . . . . . . . . . . . . [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 (48 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'detechniekschool.nl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.detechniekschool.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)
							00ef007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018ada67e3da000004030046304402202fd02bc7b704337d88d24a690d793d43f6c9ca864e86634cc68fbe9ae5a830b5022041bc031080356ef9bc84dd89468a4afa1546dfa5160d76512985f327f6f902bd007600e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018ada67e3e50000040300473045022005eb854b1f1de59d10e77165dce05404090b4af196b02ba500519b22947b51c40221009c7eafbfdb79bdb3db62ea2b5bf670257670f000a23a44c1733fadffdd2d27f6
 . . . . [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)
		00384f361cb91c747f5bd5b817b3b97391c7f1c27cd6b5a0dcf44c247609b2dd13354f8bc2b147347e0eed908283583c5e03067a246d326c0cf7e28d05a9d7b7862064706c782fc6f220b8f543f4b87cdbb77f91a173a48c98924a33e68b14e408830588e179ee5b4ac7dd1cb4793c4c0bee240b840a0a512aaf185193af7b5d1530a72a57d19628d748c72c771a34f459f6737bfb2187590db8eb1b90b166a330eba3c6ac4714180ac792e8176681731cf80fe6847b9b79d6d56445fe1649ad1b769fa022dbdd2de24436eb81abe57deb55790b455dea2e331462ea2b15bb10546977a937a9074a9c337b85009d250edc2910d25fbcb2a3e4b3c5bfdb4fead3ef