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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

netcup.com · 144.208.243.2:443

Verified

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

Subject
CN=*.netcup.com
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Valid from
2026-11-10T00:00:00+00:00
Expires
2027-05-27T23:59:59+00:00
Days remaining
194
Serial (hex)
0AC32F7FDCDD1353B69E53C25A48CE3F
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.netcup.com, DNS:netcup.com

SHA-256 fingerprint

48:95:F0:D7:56:94:CC:96:A0:46:8D:CE:CD:9A:7D:FA:0F:95:18:04:FA:03:16:DD:FB:E5:5F:17:AD:72:C5:41
Certificate extensions & PEM
authorityKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
subjectKeyIdentifier
71:9A:70:B2:FF:4A:6D:89:50:52:81:78:C5:86:30:F0:9E:B8:2F:72
subjectAltName
DNS:*.netcup.com, DNS:netcup.com
certificatePolicies
Policy: 2.23.140.1.2.1 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://cdp.rapidssl.com/RapidSSLTLSRSACAG1-1.crl
authorityInfoAccess
OCSP - URI:http://status.rapidssl.com CA Issuers - URI:http://cacerts.rapidssl.com/RapidSSLTLSRSACAG1.crt
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Nov 10 09:26:27.684 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:2B:A2:FB:24:61:D4:05:7B:14:CC:14:E2: 48:19:9B:6C:D1:26:0C:02:E6:47:3C:BF:BC:04:DB:FB: 50:48:E2:23:02:20:17:42:5D:ED:5C:DE:D3:A2:51:03: 62:DD:67:D2:93:3A:F7:A4:61:E1:81:82:98:7D:72:91: D1:3F:6F:22:57:E8 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Nov 10 09:26:27.688 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:4A:DA:89:C7:3D:9F:AA:4C:A0:28:F7:FC: 7E:40:DB:3F:76:E9:8B:08:5E:AD:C5:45:49:E8:A3:0E: 08:17:64:C1:02:21:00:D4:6D:91:FC:C0:06:BA:49:E5: F9:7F:7A:C9:96:E0:61:8D:B7:3B:9B:9E:90:46:9C:62: 7B:95:DA:E0:E8:DD:1E Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Nov 10 09:26:28.327 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:D1:B9:28:5F:E6:E7:AB:69:C7:F3:2C: A1:0C:D7:C3:C3:AA:E1:D9:81:33:36:81:C9:21:3B:4E: A1:F3:C2:F2:C3:02:20:3D:85:66:AA:7F:90:AB:98:79: 91:56:F5:23:9E:69:D4:D7:FB:71:04:08:A0:02:AD:70: 7E:C2:D8:0B:FE:82:41
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-14T06:29:37+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:24:33+00:00
Expires
2027-11-02T12:24:33+00:00
Days remaining
353
Serial (hex)
0B259422CED9812A15A04E99528A0EFA
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

44:22:E9:63:EE:53:CD:58:CC:9F:85:CD:40:BF:5F:FE:C0:09:5F:DF:1A:15:45:35:66:1C:1C:06:BC:AD:C6:9B
Certificate extensions & PEM
subjectKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
authorityKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.1.1 CPS: https://www.digicert.com/CPS Policy: 2.16.840.1.114412.1.2 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

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

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