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

TLSv1.2

lewtelnet.de · 193.23.92.90:443

Verified

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

Subject
C=DE L=Essen O=E.ON SE CN=telnet.lew.de
Issuer
C=IE O=DigiCert Ireland Limited CN=DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
Valid from
2026-07-06T00:00:00+00:00
Expires
2027-01-20T23:59:59+00:00
Days remaining
119
Serial (hex)
0D9DDF5140ED933EF3A155C6D816DDA4
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:telnet.lew.de, DNS:www.lewtelnet.de, DNS:lewtelnet.de

SHA-256 fingerprint

CE:FB:80:9B:5D:AF:FD:29:0E:AD:2B:46:D1:36:6C:AC:C4:A7:73:3E:A2:43:2E:2F:A5:28:C8:98:D6:2E:B2:C2
Certificate extensions & PEM
authorityKeyIdentifier
18:89:E7:AF:F0:28:F6:7C:CA:68:05:52:E1:62:D8:91:D6:16:65:60
subjectKeyIdentifier
2D:8E:30:4A:8E:16:B6:52:EB:1D:B0:E4:1E:DE:0D:24:A9:37:A9:A2
subjectAltName
DNS:telnet.lew.de, DNS:www.lewtelnet.de, DNS:lewtelnet.de
certificatePolicies
Policy: 2.23.140.1.2.2 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.digicert.eu/DigiCertG2TLSEURSA4096SHA3842022CA1.crl
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.eu CA Issuers - URI:http://cacerts.digicert.eu/DigiCertG2TLSEURSA4096SHA3842022CA1.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 : Jul 6 13:49:14.754 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:24:3C:0F:52:05:FC:AC:10:0F:F9:AC:7F: 58:A9:51:E6:28:F7:67:4D:60:25:84:DA:AD:B8:FC:B9: F1:41:09:34:02:21:00:88:45:07:E4:1D:9E:08:B5:B9: 5F:32:D4:AD:4C:76:6F:9F:A7:57:CE:AC:56:F8:B3:6C: EB:BF:83:DF:65:16:25 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 : Jul 6 13:49:14.726 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:5E:95:2D:84:3C:5B:0C:CA:4F:59:38:EC: AC:57:5C:54:0E:DA:DC:DE:82:B9:A2:FC:8F:A2:21:6F: 8B:78:E1:F2:02:20:55:64:9E:BC:8C:F0:6E:47:B8:C8: CD:E2:2F:7D:7E:A6:30:42:48:CF:61:12:1F:F2:B9:2E: F9:9A:58:E1:AD:C0 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 : Jul 6 13:49:14.649 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:D1:7F:05:40:C1:C4:05:58:0C:AE:55: E2:52:CD:77:7D:46:95:52:0D:E8:D4:5F:45:27:F6:B3: 7B:49:60:ED:29:02:20:60:1F:B9:49:40:9A:26:CF:A0: A5:C1:24:C9:A2:1B:6D:D6:F2:50:97:2D:9E:2A:4E:E5: E2:69:4D:E3:2D:1D:59
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-GCM-SHA384 · Checked 2026-09-23T14:03:00+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=IE O=DigiCert Ireland Limited CN=DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2022-09-19T00:00:00+00:00
Expires
2032-09-18T23:59:59+00:00
Days remaining
2187
Serial (hex)
064F84FF791FA676F29CF36537A2749E
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

A4:AD:FC:29:17:BB:14:51:D3:12:37:1D:44:1A:CD:B6:86:10:7F:BC:0B:31:56:D5:57:0E:99:E1:12:19:74:FA
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
18:89:E7:AF:F0:28:F6:7C:CA:68:05:52:E1:62:D8:91:D6:16:65:60
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
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalRootG2.crt
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.2.1 Policy: 2.23.140.1.1 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2 Policy: 2.23.140.1.2.3
-----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.

View certificate JSON

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