DV SSL/TLS Certificate for calcua.uantwerpen.be

Certificate is witin its validity period

Issued by Let's Encrypt (R10)

About the calcua.uantwerpen.be DV SSL/TLS Certificate

This certificate with serial number 06:6a:a4:3c:86:64:e3:f0:02:b3:bd:46:88:ca:09:e1:d4:f0 for calcua.uantwerpen.be was issued on by Let's Encrypt.

With 4 subject alternative names, this certificate can be used to secure multiple FQDNs. This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for calcua.uantwerpen.be provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • 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)

Let's Encrypt

Organization: Let's Encrypt
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 06:6a:a4:3c:86:64:e3:f0:02:b3:bd:46:88:ca:09:e1:d4:f0
Serial Number (int): 558961954139137441692611803894373823927536
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 35:9b:1d:3b:b8:0a:ec:c6:cb:de:e2:7c:ae:8e:92:87:c6:2b:a8:d4
Authority Key Identifier: bb:bc:c3:47:a5:e4:bc:a9:c6:c3:a4:72:0c:10:8d:a2:35:e1:c8:e8

Fingerprint (SHA-1): 38:bc:83:5b:fd:f8:fb:5b:6c:15:3c:55:32:c3:64:f9:59:82:fe:b1
Fingerprint (SHA-256): a2:54:4d:6b:90:a8:53:c5:a0:14:7d:61:4c:ba:1d:74:c9:08:6d:23:4b:c3:7d:1c:67:60:03:c7:60:a0:34:0f

Issuing Certificate URL: http://r10.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r10.c.lencr.org/113.crl

Check the revocation status for certificate calcua.uantwerpen.be
4
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for calcua.uantwerpen.be

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
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

The complete raw X.509 certificate details for calcua.uantwerpen.be in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFQTCCBCmgAwIBAgISBmqkPIZk4/ACs71GiMoJ4dTwMA0GCSqGSIb3DQEBCwUA
MDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQD
EwNSMTAwHhcNMjUwNTEwMDE1NTE4WhcNMjUwODA4MDE1NTE3WjAfMR0wGwYDVQQD
ExRjYWxjdWEudWFudHdlcnBlbi5iZTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCC
AQoCggEBAMrwjW7jeQj85+FIAzgb/7yk2YRHvByTefAaRWXH+qUBwekUtzJtYsPL
1yzrd2tMAlCifY4XOGWtKyBPoBED4UKl8Kq9MwOt3yhtsKQv603LETuAkVt34k3f
GbJuEcI57A1Yo/YOslcD0KIawTd68oyL3Fo3CngvtlQ+FFMop7P8sfgOYPIKuulX
b5oAUM/57Yqwdm4ka6igQiveCESyvuiShC/QqcrjOtbkIbaPJd+ovZkctnSg1XJz
vUT58bd3iVVWJKPssV5PVuXJ+EHtwPExpqMgGIfKC/YGQ/Q9nVv0ur4ech31G/DV
dczyb95tJbCBhh8w6Rt54BJMzee+nvkCAwEAAaOCAmEwggJdMA4GA1UdDwEB/wQE
AwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIw
ADAdBgNVHQ4EFgQUNZsdO7gK7MbL3uJ8ro6Sh8YrqNQwHwYDVR0jBBgwFoAUu7zD
R6XkvKnGw6RyDBCNojXhyOgwMwYIKwYBBQUHAQEEJzAlMCMGCCsGAQUFBzAChhdo
dHRwOi8vcjEwLmkubGVuY3Iub3JnLzBZBgNVHREEUjBQghRjYWxjdWEudWFudHdl
cnBlbi5iZYIRaHBjLnVhbnR3ZXJwZW4uYmWCEmx1bWkudWFudHdlcnBlbi5iZYIR
dnNjLnVhbnR3ZXJwZW4uYmUwEwYDVR0gBAwwCjAIBgZngQwBAgEwLwYDVR0fBCgw
JjAkoCKgIIYeaHR0cDovL3IxMC5jLmxlbmNyLm9yZy8xMTMuY3JsMIIBBgYKKwYB
BAHWeQIEAgSB9wSB9ADyAHcADeHyMCvTDcFAYhIJ6lUu/Ed0fLHX6TDvDkIetH5O
qjQAAAGWuBz4dwAABAMASDBGAiEAvApTgU0LFgpLP2ZXqoEPSzxUQWU9RKnvtyDA
SS7Jg0gCIQDwGnWo8jTsw76xppJi/EhdjIA9SktbOE7ShOZSE5BfKgB3AMz7D2qF
cQll/pWbU87psnwi6YVcDZeNtql+VMD+TA2wAAABlrgc+IoAAAQDAEgwRgIhAJx3
Nz7xykjbHtMa0Ll96sif5lnpwoSEHiSf07t97KxkAiEAi8wwGLCkWv85pfPxwFdu
jUOIXhxMKayfmMlO85DqIrswDQYJKoZIhvcNAQELBQADggEBAM2D5tt0spFapJ4L
/+0KPsdY7pR8fYyxil/rlosq68HRWKztwBQMGKv8zIx5Jazvkdn1BNWj+CF1y4hA
R7IQ6H3iSg/MEbFOougP9YTJ7blzXIvO+DIuYXbOBa5R4ZKJnvRXM/zKtNUWWWYB
Y0EL7E657ytTgCoBm/8srgVxr5wHG1Ix0kDtVf4diNgxkvXOJK8Mrp1p0o8pfY6P
FZwzoGlnrpw7AQdkqQ9F4R8yo/nt86bPMJph+XGQ/F2Uvk7T6rb0yEZ5gCQQWzoX
HpAjHlB/2rJGph8fcriUdZvyi5zHu2Mcjgb00e1sXtesrjagjmHNkhj3G/TXBH+c
rDj3ziY=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyvCNbuN5CPzn4UgDOBv/
vKTZhEe8HJN58BpFZcf6pQHB6RS3Mm1iw8vXLOt3a0wCUKJ9jhc4Za0rIE+gEQPh
QqXwqr0zA63fKG2wpC/rTcsRO4CRW3fiTd8Zsm4RwjnsDVij9g6yVwPQohrBN3ry
jIvcWjcKeC+2VD4UUyins/yx+A5g8gq66VdvmgBQz/ntirB2biRrqKBCK94IRLK+
6JKEL9CpyuM61uQhto8l36i9mRy2dKDVcnO9RPnxt3eJVVYko+yxXk9W5cn4Qe3A
8TGmoyAYh8oL9gZD9D2dW/S6vh5yHfUb8NV1zPJv3m0lsIGGHzDpG3ngEkzN576e
+QIDAQAB
-----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 558961954139137441692611803894373823927536
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R10'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-05-10 01:55:18 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-08-08 01:55:17 +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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'calcua.uantwerpen.be'
 . . . . . . . . [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
 . . . . . . . . . . . . . . . . [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 25618758448775319799290945056625854221025872550565372472305373936087298087481619360707854447052711963412593370758892478332777383485264420222670700321122437781678036408993486427778897293663893522706613741025554966878263419093825258123738961118306199682410867182224016307486277493878205555093448395616909725091379762059233173798501976995432320549635040643286765827093809631676242548312032874835322795672015789403355500840426988827652311361325233641941036744770627552543448720662158321001197515137108730189701759781763253017595193569246620798324749522064742579133559728987702005837714613432958690086763653027559842422521
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							359b1d3bb80aecc6cbdee27cae8e9287c62ba8d4
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName bbbcc347a5e4bca9c6c3a4720c108da235e1c8e8
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r10.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (82 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'calcua.uantwerpen.be'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hpc.uantwerpen.be'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'lumi.uantwerpen.be'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'vsc.uantwerpen.be'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (40 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r10.c.lencr.org/113.crl'
 . . . . . . . . . . . . . . . . [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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077000de1f2302bd30dc140621209ea552efc47747cb1d7e930ef0e421eb47e4eaa3400000196b81cf8770000040300483046022100bc0a53814d0b160a4b3f6657aa810f4b3c5441653d44a9efb720c0492ec98348022100f01a75a8f234ecc3beb1a69262fc485d8c803d4a4b5b384ed284e65213905f2a007700ccfb0f6a85710965fe959b53cee9b27c22e9855c0d978db6a97e54c0fe4c0db000000196b81cf88a00000403004830460221009c77373ef1ca48db1ed31ad0b97deac89fe659e9c284841e249fd3bb7decac640221008bcc3018b0a45aff39a5f3f1c0576e8d43885e1c4c29ac9f98c94ef390ea22bb
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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