DV SSL/TLS Certificate for *.katrinkrumm.de

Certificate is witin its validity period

Issued by Sectigo Limited (Sectigo RSA Domain Validation Secure Server CA)

About the *.katrinkrumm.de DV SSL/TLS Certificate

This certificate with serial number 35:6f:51:e2:5f:06:9d:6f:b8:19:a4:60:90:c7:11:a1 for *.katrinkrumm.de was issued on by Sectigo Limited.

With 2 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 *.katrinkrumm.de 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)

Sectigo Limited

Organization: Sectigo Limited
State / Province: Greater Manchester
Locality: Salford
Country: GB

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 35:6f:51:e2:5f:06:9d:6f:b8:19:a4:60:90:c7:11:a1
Serial Number (int): 71027089538049604100050982087699141025
Serial Number Length: 126 bits, 16 octets

Subject Key Identifier: e5:5e:d2:dd:d5:46:dc:7e:68:6d:b1:03:01:09:5e:a7:35:a3:2f:8a
Authority Key Identifier: 8d:8c:5e:c4:54:ad:8a:e1:77:e9:9b:f9:9b:05:e1:b8:01:8d:61:e1

Fingerprint (SHA-1): a8:9c:4a:3f:14:57:de:69:ca:24:1f:b6:44:fc:73:87:f1:af:3c:46
Fingerprint (SHA-256): b2:bb:f6:ad:f3:c4:f4:4b:b5:21:3a:e2:54:5b:12:a5:92:d5:50:c4:8e:f1:e3:85:c5:16:71:18:3f:e0:bf:35

Issuing Certificate URL: http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt

Revocation Information

OCSP Server: http://ocsp.sectigo.com

Check the revocation status for certificate *.katrinkrumm.de
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for *.katrinkrumm.de

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
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

The complete raw X.509 certificate details for *.katrinkrumm.de in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGOjCCBSKgAwIBAgIQNW9R4l8GnW+4GaRgkMcRoTANBgkqhkiG9w0BAQsFADCB
jzELMAkGA1UEBhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4G
A1UEBxMHU2FsZm9yZDEYMBYGA1UEChMPU2VjdGlnbyBMaW1pdGVkMTcwNQYDVQQD
Ey5TZWN0aWdvIFJTQSBEb21haW4gVmFsaWRhdGlvbiBTZWN1cmUgU2VydmVyIENB
MB4XDTI1MDIwNzAwMDAwMFoXDTI2MDIyMTIzNTk1OVowGzEZMBcGA1UEAwwQKi5r
YXRyaW5rcnVtbS5kZTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANSq
YYYiQ7z4iFKyX6Drq4OKKXEYHoAh0VKZmy1LJk+CjGwm5oF6pcGGd8+zH6V1oHER
BFANMtvVdY6goCfCub9dSLkdx0RDiWlEjzrQj7Us2WlIB9xLzAgQ7hqQp+uAo1n6
Iz0gcXweV2p/MtLGhdvxME7VCpfLuTJvcazFZPiz92TTu/nG7lf5N2QejpPaUTGb
BrSQLlAI5tYxKE2YbVfDcIG3ngS3RIVkiaixVOa2oioENYXaQbxGF+Y9lWEQo/qc
epZ9pm7edsQqBVGpwZhMQQcqSevrWvtLLt0guF/vz8P2CiNcW+Kcuin5tJ8065qD
A3y7xlGlzWLkowYiBd8CAwEAAaOCAwMwggL/MB8GA1UdIwQYMBaAFI2MXsRUrYrh
d+mb+ZsF4bgBjWHhMB0GA1UdDgQWBBTlXtLd1UbcfmhtsQMBCV6nNaMvijAOBgNV
HQ8BAf8EBAMCBaAwDAYDVR0TAQH/BAIwADAdBgNVHSUEFjAUBggrBgEFBQcDAQYI
KwYBBQUHAwIwSQYDVR0gBEIwQDA0BgsrBgEEAbIxAQICBzAlMCMGCCsGAQUFBwIB
FhdodHRwczovL3NlY3RpZ28uY29tL0NQUzAIBgZngQwBAgEwgYQGCCsGAQUFBwEB
BHgwdjBPBggrBgEFBQcwAoZDaHR0cDovL2NydC5zZWN0aWdvLmNvbS9TZWN0aWdv
UlNBRG9tYWluVmFsaWRhdGlvblNlY3VyZVNlcnZlckNBLmNydDAjBggrBgEFBQcw
AYYXaHR0cDovL29jc3Auc2VjdGlnby5jb20wggF/BgorBgEEAdZ5AgQCBIIBbwSC
AWsBaQB3AJaXZL9VWJet90OHaDcIQnfp8DrV9qTzNm5GpD8PyqnGAAABlN5c8/gA
AAQDAEgwRgIhANRVQeEyIAUhPYhdFRyVe/OfpZiYLn79eygjZMk75S7FAiEAkD0J
nJ6QSxnzheIdOICJrVYhNscwX4XbvEC52VH350cAdQAZhtTHKKpv/roDb3gqTQGR
qs4tcjEPrs5dcEEtJUzH1AAAAZTeXPOHAAAEAwBGMEQCICF4pjeDqmbrWBEFl/iL
4S41Ijn9JZk1ZR2i1hFSGFY6AiBAH7JzgTJbYGcr174Eg4CAIWpwG2/HBZg/bK9P
O5OIfAB3AMs49xWJfIShRF9bwd37yW7ymlnNRwppBYWwyxTDFFjnAAABlN5c87EA
AAQDAEgwRgIhAOnP0eSlZQj0V5WzCWXfYIB4rptTQ9ibsxQR3SAu25MuAiEAqrxH
/96pB3+7p307oKmIcKLPyAtYq/gRIxXzqz5PU+owKwYDVR0RBCQwIoIQKi5rYXRy
aW5rcnVtbS5kZYIOa2F0cmlua3J1bW0uZGUwDQYJKoZIhvcNAQELBQADggEBALnn
DgtK/+TODt45DXh4Ys3Q5ckxKqFR908CmnUeE2Mfa3dWhkt0jFaeiM/0xokdpyAa
wkT15FbvSkPJQlpkV265m3wNLeohq38+z9qpR8btpWkpKIyC6ELxhoiop2yHP2u8
m7Dt+jzHZvso3cf53G2awhIxnP+fFXLudshwM4ASUE6ipbrVOw0WSfush9teYLFb
T3BJ8ZDUCDllBlsN9HOVhCZqAKnSU2ZvcTY9d9JxorHVW0ehchVdRRii50wHpJyb
G513Ii/1N1aVcOjxaI600oTCD4ryT+j5hL8+U6bXoh4cN4LtRuJfj1yQWHMKkXz8
Kcw0dG5u8xySs/rkvKA=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1KphhiJDvPiIUrJfoOur
g4opcRgegCHRUpmbLUsmT4KMbCbmgXqlwYZ3z7MfpXWgcREEUA0y29V1jqCgJ8K5
v11IuR3HREOJaUSPOtCPtSzZaUgH3EvMCBDuGpCn64CjWfojPSBxfB5Xan8y0saF
2/EwTtUKl8u5Mm9xrMVk+LP3ZNO7+cbuV/k3ZB6Ok9pRMZsGtJAuUAjm1jEoTZht
V8NwgbeeBLdEhWSJqLFU5raiKgQ1hdpBvEYX5j2VYRCj+px6ln2mbt52xCoFUanB
mExBBypJ6+ta+0su3SC4X+/Pw/YKI1xb4py6Kfm0nzTrmoMDfLvGUaXNYuSjBiIF
3wIDAQAB
-----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 71027089538049604100050982087699141025
 . . . . . . . . [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 'GB'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.8
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Greater Manchester'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.7
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Salford'
 . . . . . . . . . . . . [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 'Sectigo Limited'
 . . . . . . . . . . . . [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 'Sectigo RSA Domain Validation Secure Server CA'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-02-07 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2026-02-21 23:59:59 +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:12|false] UTF8String '*.katrinkrumm.de'
 . . . . . . . . [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 26846538632106938108017007656502136789051603001070465644552891501069459851270561499337809145328605359117379301036016562229450742077423748366058877535695004667436782270191369914146231011640568926374901310374148866608538878840804847926951917491811973910507627865124935949661553196114320844128294113615259304632254890836624298740121548998669979757577525786255000836840121504560553233086191452147501948791516432532488901912987067148125325549947176234402755810695136739525311213573408600929971195480087452611206847933715367517504923871122891827969854795646413311489057702549403904675395591321603229666443727409351237961183
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 8d8c5ec454ad8ae177e99bf99b05e1b8018d61e1
 . . . . . . . . . . . . . . . . [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)
							e55ed2ddd546dc7e686db10301095ea735a32f8a
 . . . . . . . . . . . . . . . . [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 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.37
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (66 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.6449.1.2.2.7
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'https://sectigo.com/CPS'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (120 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://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.sectigo.com'
 . . . . . . . . . . . . . . . . [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 (367 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (363 bytes)
							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
 . . . . . . . . . . . . . . . . [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 (36 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.katrinkrumm.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'katrinkrumm.de'
 . . . . [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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