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

ns3.jpberlin.de · 88.198.52.15:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate CN=`*.heinlein-hosting.de' did not match expected CN=`ns3.jpberlin.de'

Certificate verification failed

Subject
CN=*.heinlein-hosting.de
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=Thawte TLS RSA CA G1
Valid from
2025-10-23T00:00:00+00:00
Expires
2026-11-22T23:59:59+00:00
Days remaining
51
Serial (hex)
0F67A8CFADE32DBDBE97660BAA7F483A
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:*.heinlein-hosting.de, DNS:heinlein-hosting.de

SHA-256 fingerprint

58:6F:DA:5F:FC:02:F9:A1:44:DE:A8:CD:AB:46:7B:07:12:E3:26:42:3E:0D:D0:4A:CC:D0:64:1C:69:F7:2A:CB
Certificate extensions & PEM
authorityKeyIdentifier
A5:8C:FE:32:CC:EB:0F:2C:D4:19:C6:08:B8:00:24:88:5D:C3:C5:B7
subjectKeyIdentifier
0B:19:02:AD:AD:AD:7F:07:FF:16:0C:36:0D:EC:BE:F8:22:2E:22:F6
subjectAltName
DNS:*.heinlein-hosting.de, DNS:heinlein-hosting.de
certificatePolicies
Policy: 2.23.140.1.2.1 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
crlDistributionPoints
Full Name: URI:http://cdp.thawte.com/ThawteTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.thawte.com CA Issuers - URI:http://cacerts.thawte.com/ThawteTLSRSACAG1.crt
basicConstraints
CA:FALSE
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 : Oct 23 15:00:47.139 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:32:24:64:55:3C:86:93:62:35:50:66:08: 66:B5:F7:0B:F3:A8:19:4E:94:0A:7A:BB:09:73:8F:19: 95:B7:F2:42:02:21:00:FA:8B:AE:47:2D:FA:66:EC:F2: 9F:FB:48:25:84:50:1C:D0:14:F5:4C:B3:CD:17:2A:14: 24:EE:A6:77:55:9E:78 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 : Oct 23 15:00:47.067 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:70:A9:49:29:61:51:0E:5A:BC:15:CF:08: 38:68:AC:FA:04:10:1E:71:DC:1D:C0:27:2C:B3:25:90: 66:63:47:41:02:21:00:D1:81:9C:99:31:FE:E6:1F:DC: B3:90:2E:1F:0E:8F:C9:51:63:2E:B0:12:37:CE:D9:A3: 2C:52:86:12:44:B4:30 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 : Oct 23 15:00:47.086 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:1D:E5:84:EF:6E:10:CB:A3:C8:E0:33:7E: 75:D7:AB:2C:E7:56:FD:7B:87:B9:94:D2:DC:73:27:96: E5:1C:7B:34:02:20:55:1D:20:34:A1:61:5A:40:28:23: AD:96:C5:5F:82:7C:A6:90:07:22:5F:A6:3F:9D:9C:6B: F0:E9:89:58:1F:9D
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-02T02:57:40+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=Thawte TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:24:25+00:00
Expires
2027-11-02T12:24:25+00:00
Days remaining
396
Serial (hex)
090EE8C5DE5BFA62D2AE2FF7097C4857
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

4B:CC:5E:23:4F:E8:1E:DE:4E:AF:88:3A:A1:9C:31:33:5B:0B:26:E8:5E:06:6B:99:45:E4:CB:61:53:EB:20:C2
Certificate extensions & PEM
subjectKeyIdentifier
A5:8C:FE:32:CC:EB:0F:2C:D4:19:C6:08:B8:00:24:88:5D:C3:C5:B7
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: X509v3 Any Policy CPS: https://www.digicert.com/CPS
-----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

Registration / WHOIS →DNS records →