DNS
THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.3

schleupen.de · 3.126.175.146:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
C=DE ST=Baden-Wuerttemberg L=Ettlingen O=Schleupen SE CN=*.schleupen.de
Issuer
C=DE O=Deutsche Telekom Security GmbH CN=Telekom Security ServerID OV Class 2 CA
Valid from
2025-12-08T08:59:18+00:00
Expires
2026-12-12T23:59:59+00:00
Days remaining
34
Serial (hex)
1142D498C80AC2D0846769CE4757285B
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:*.schleupen.de, DNS:schleupen.de

SHA-256 fingerprint

1D:E3:13:BB:78:A7:2D:A6:30:03:85:29:69:08:1A:05:8F:BD:74:16:F8:22:10:13:54:0B:99:B0:10:63:09:5E
Certificate extensions & PEM
authorityKeyIdentifier
1C:05:93:B1:7F:A8:34:30:8C:52:E0:96:40:A0:72:A3:10:5D:E0:FF
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
subjectKeyIdentifier
A9:74:A2:70:E0:27:B5:71:33:BC:0F:EF:82:79:4F:FE:21:62:CF:B6
certificatePolicies
Policy: 2.23.140.1.2.2 CPS: http://docs.serverid.telesec.de/cps/serverid.htm
crlDistributionPoints
Full Name: URI:http://crl.serverid.telesec.de/rl/Telekom_Security_ServerID_OV_Class_2_CA.crl
authorityInfoAccess
OCSP - URI:http://ocsp.serverid.telesec.de/ocspr CA Issuers - URI:http://crt.serverid.telesec.de/crt/Telekom_Security_ServerID_OV_Class_2_CA.crt
basicConstraints
CA:FALSE
subjectAltName
DNS:*.schleupen.de, DNS:schleupen.de
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Dec 8 08:59:19.559 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:79:0D:1B:9F:50:3E:CF:49:0F:B3:32:4C: 4B:4A:3D:55:3B:D0:B0:F4:EB:6A:CC:79:FB:55:8D:0F: 7F:94:B7:B4:02:21:00:CC:F2:8F:0D:AA:34:35:86:E4: 8C:72:2F:05:3E:1B:C2:10:7F:AE:43:D0:65:FB:11:E7: F9:01:58:C5:A8:DA:B7 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB: B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14 Timestamp : Dec 8 08:59:19.508 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:C3:55:52:7A:83:14:6F:23:6A:77:DD: 3A:0B:F1:83:47:DB:64:5C:96:45:E3:C4:2E:4D:5F:E0: 38:10:AD:32:C6:02:21:00:87:F2:FC:A3:46:8C:07:C3: 18:87:AF:7B:D2:B0:3F:75:4D:D9:74:B8:F9:D3:EF:A9: DE:DE:29:61:E8:35:72:76 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65: 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8 Timestamp : Dec 8 08:59:19.770 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:4E:D1:68:C7:89:7C:CC:A3:28:65:E8:D8: 82:50:30:96:41:7A:62:36:11:62:47:CA:C8:3C:BC:8A: 29:E3:A9:81:02:21:00:83:DC:DB:B5:70:37:C6:0A:72: 01:86:39:2D:C9:18:F5:53:AA:6F:6F:38:6D:00:A4:53: E1:01:ED:93:60:F4:08 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : Dec 8 08:59:19.950 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:31:8D:6E:F6:32:BD:85:52:0B:76:52:CF: DD:E8:47:E3:22:BA:8A:37:72:D6:ED:9E:F8:D7:D6:28: 84:AB:26:F3:02:21:00:97:27:0D:48:B8:11:1E:E9:8E: 65:0C:14:D7:16:6F:30:57:DF:2E:A0:66:FD:4E:70:4F: 5E:35:85:87:B1:60:8E
-----BEGIN CERTIFICATE-----
MIII3jCCB0agAwIBAgIQEULUmMgKwtCEZ2nOR1coWzANBgkqhkiG9w0BAQsFADBo
MQswCQYDVQQGEwJERTEnMCUGA1UECgweRGV1dHNjaGUgVGVsZWtvbSBTZWN1cml0
eSBHbWJIMTAwLgYDVQQDDCdUZWxla29tIFNlY3VyaXR5IFNlcnZlcklEIE9WIENs
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ZXVwZW4uZGUwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQDjgjAt4oWp
XAaotLDh67jJSqzkc7/zmcJNTNc2VyT/B9/4Dtwt7pD380wIyF7Lo5s+uf+ax2xq
/tqmSmuU4FBg+XkPWoaj73zTXGVaMahW4CI+VHHRi3MQpqsU8U4SpsEGERlNedge
MeiU4vkwwjDV4iYs/cU2tcWi09oA8yqhVxnPlceMrBHblLX38l20r0NU06IXcQ9h
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XaUkhzWdWwwOS09UJ/rqlzmHpdk8QH0+/IuwTzCgjl5aVzmy6BjZ7GnipB1PXRxJ
lx/W4idT5Z9m2qyDSdC/npM6LVrLnz7DubLN0SN8ZBsqx24l2Sp1jY40L/YcnO1D
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Vv7EDDBuotceN4YszxoU6QphKwaU6rjZjxPd6Ia0SnI6Hds9Nm1F7nv500p9T05w
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FoAUHAWTsX+oNDCMUuCWQKByoxBd4P8wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQW
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1219ENGn9XfCx+lf1wC/+YLJM1pl4dCzAXMXwMjFaXcAAAGa/S/MhwAABAMARzBF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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-08T12:30:45+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=DE O=Deutsche Telekom Security GmbH CN=Telekom Security ServerID OV Class 2 CA
Issuer
C=DE O=T-Systems Enterprise Services GmbH OU=T-Systems Trust Center CN=T-TeleSec GlobalRoot Class 2
Valid from
2022-08-02T09:16:44+00:00
Expires
2027-08-02T23:59:59+00:00
Days remaining
267
Serial (hex)
0E5D298915C40431A4E1C4CA488B8EA3
Signature
RSA-SHA256
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

94:4A:CE:96:1D:B3:16:BE:B6:94:E0:1C:30:2C:46:FE:D4:0D:C0:29:17:29:E7:DA:F5:85:50:C3:CB:55:E7:91
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
subjectKeyIdentifier
1C:05:93:B1:7F:A8:34:30:8C:52:E0:96:40:A0:72:A3:10:5D:E0:FF
authorityKeyIdentifier
BF:59:20:36:00:79:A0:A0:22:6B:8C:D5:F2:61:D2:B8:2C:CB:82:4A
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://grcl2.crl.telesec.de/rl/T-TeleSec_GlobalRoot_Class_2.crl
authorityInfoAccess
OCSP - URI:http://grcl2.ocsp.telesec.de/ocspr CA Issuers - URI:http://grcl2.crt.telesec.de/crt/T-TeleSec_GlobalRoot_Class_2.crt
certificatePolicies
Policy: 2.23.140.1.2.2
-----BEGIN CERTIFICATE-----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gzscFFDw6g45dapfYK5e0xyiE4hkDDWkLi1VbLjm0+Jy+xGRnPTex1vd2Pmk8GyN
Fg2nqH9DK+o/atmb1VQj+APwEj6Iu1ZlvY1A6TxDVmMwwGLvik57lcSSQicqLQCv
Ck+rJCA5RnU/Sq6iA3ke/zEu1UJaVcM1vBmtu597c857ntt1FXObUK+DEED0/RN2
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HQ4EFgQUHAWTsX+oNDCMUuCWQKByoxBd4P8wHwYDVR0jBBgwFoAUv1kgNgB5oKAi
a4zV8mHSuCzLgkowEgYDVR0TAQH/BAgwBgEB/wIBADAdBgNVHSUEFjAUBggrBgEF
BQcDAgYIKwYBBQUHAwEwUAYDVR0fBEkwRzBFoEOgQYY/aHR0cDovL2dyY2wyLmNy
bC50ZWxlc2VjLmRlL3JsL1QtVGVsZVNlY19HbG9iYWxSb290X0NsYXNzXzIuY3Js
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cC50ZWxlc2VjLmRlL29jc3ByMEwGCCsGAQUFBzAChkBodHRwOi8vZ3JjbDIuY3J0
LnRlbGVzZWMuZGUvY3J0L1QtVGVsZVNlY19HbG9iYWxSb290X0NsYXNzXzIuY3J0
MBMGA1UdIAQMMAowCAYGZ4EMAQICMA0GCSqGSIb3DQEBCwUAA4IBAQBTLMxV+kTs
Ij6ks1K3WOWM5MyS/IDOGYRAcjP99Dsqqsb0+Klv/DjDpqG+fNhToZkMIOLwFCVO
RG2o0lx3OLN89yUxsWsi9gbxnJl8WMdYWablIlL4SGUT79GuumemtKs53WxEOpcZ
5wKeRNz4kX6dzDp9/186Z87Fss478BuOLUvpeRyqzvHBNHNgPagqwD8DK3ab/Oja
I81PR4Ah4HgVf0IcCUhIoJeZ5Egv63G/IonqwMmmRgylu1eRENJ49PplOL70QEkf
VwnYyLPcxt13TEp8IwH1gjqmyTUO6hx3Tz/jmkrfjwAVaN8sBBREXzzCexjyeM5U
UQI/g3ovkWbg
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=DE O=T-Systems Enterprise Services GmbH OU=T-Systems Trust Center CN=T-TeleSec GlobalRoot Class 2
Issuer
C=DE O=T-Systems Enterprise Services GmbH OU=T-Systems Trust Center CN=T-TeleSec GlobalRoot Class 2
Valid from
2008-10-01T10:40:14+00:00
Expires
2033-10-01T23:59:59+00:00
Days remaining
2519
Serial (hex)
01
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

91:E2:F5:78:8D:58:10:EB:A7:BA:58:73:7D:E1:54:8A:8E:CA:CD:01:45:98:BC:0B:14:3E:04:1B:17:05:25:52
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Certificate Sign, CRL Sign
subjectKeyIdentifier
BF:59:20:36:00:79:A0:A0:22:6B:8C:D5:F2:61:D2:B8:2C:CB:82:4A
-----BEGIN CERTIFICATE-----
MIIDwzCCAqugAwIBAgIBATANBgkqhkiG9w0BAQsFADCBgjELMAkGA1UEBhMCREUx
KzApBgNVBAoMIlQtU3lzdGVtcyBFbnRlcnByaXNlIFNlcnZpY2VzIEdtYkgxHzAd
BgNVBAsMFlQtU3lzdGVtcyBUcnVzdCBDZW50ZXIxJTAjBgNVBAMMHFQtVGVsZVNl
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CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCqX9obX+hzkeXaXPSi5kfl82hVYAUd
AqSzm1nzHoqvNK38DcLZSBnuaY/JIPwhqgcZ7bBcrGXHX+0CfHt8LRvWurmAwhiC
FoT6ZrAIxlQjgeTNuUk/9k9uN0goOA/FvudocP05l03Sx5iRUKrERLMjfTlH6VJi
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wI18gfNycJ5v/hqO2V81xrJvNHy+SE/iWjnX2J14np+GPgNeGYtEotXHAgMBAAGj
QjBAMA8GA1UdEwEB/wQFMAMBAf8wDgYDVR0PAQH/BAQDAgEGMB0GA1UdDgQWBBS/
WSA2AHmgoCJrjNXyYdK4LMuCSjANBgkqhkiG9w0BAQsFAAOCAQEAMQOiYQsfdOhy
NsZt+U2e+iKo4YFWz827n+qrkRk4r6p8FU3ztqONpfSO9kSpp+ghla0+AGIWiPAC
uvxhI+YzmzB6azZie60EI4RYZeLbK4rnJVM3YlNfvNoBYimipidx5joifsFvHZVw
IEoHNN/q/xWA5brXethbdXwFeilHfkCoMRN3zUA7tFFHei4R40cR3p1m0IvVVGb6
g1XqfMIpiRvpb7PO4gWEyS8+eIVibslfwXhjdFjASBgMmTnrpMwatXlajRWc2BQN
9noHV8cigwUtPJslJj0Ys6lDfMjIq2SPDqO/nBudMNva0Bkuqjzx+zOAduTNrRlP
BSeOE6Fuwg==
-----END CERTIFICATE-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

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