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

stadtwerke-eutin.de · 80.237.243.87:443

Verified

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

Subject
CN=*.stadtwerke-eutin.de
Issuer
C=US O=Starfield Technologies CN=Starfield TLS Intermediate CA DV - R1v1
Valid from
2026-10-21T06:21:32+00:00
Expires
2026-12-06T13:50:52+00:00
Days remaining
37
Serial (hex)
A653895D977ED652
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.stadtwerke-eutin.de, DNS:stadtwerke-eutin.de

SHA-256 fingerprint

BD:B1:74:46:54:E5:EC:BE:91:57:23:46:55:33:1B:AC:A6:03:04:A9:16:1B:23:CB:98:17:39:68:85:2D:93:BA
Certificate extensions & PEM
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication
keyUsage
Digital Signature, Key Encipherment
crlDistributionPoints
Full Name: URI:http://crl.starfieldtech.com/sfr1v1dv_s1-1.crl
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 2.16.840.1.114414.1.7.23.1 CPS: http://certificates.starfieldtech.com/repository/
authorityInfoAccess
CA Issuers - URI:http://certificates.starfieldtech.com/repository/sf_tls_issuing_dv-r1v1.crt OCSP - URI:http://ocsp.starfieldtech.com/
authorityKeyIdentifier
99:B4:6D:DD:8D:0C:6D:FA:2D:A0:9F:22:21:E8:73:C2:18:BC:85:D9
subjectAltName
DNS:*.stadtwerke-eutin.de, DNS:stadtwerke-eutin.de
subjectKeyIdentifier
FC:80:A0:E4:AD:F5:1A:AE:5E:37:5B:71:C6:93:94:E7:50:17:54:8C
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E: F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7 Timestamp : Oct 21 06:21:32.945 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:31:A3:79:73:69:44:D2:A6:88:0B:2C:20: 61:0E:E5:46:FC:0B:34:A1:74:B3:4F:FD:E5:02:6E:EC: 1D:C7:CA:C7:02:21:00:94:B7:EE:C7:6C:F3:F9:08:A2: 51:6A:E0:1D:99:FE:90:BA:77:78:AA:59:76:04:5E:50: 7D:7C:16:5D:97:9F:25 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 21 06:21:33.166 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:4C:2E:B7:B4:B4:CD:D7:EC:D8:56:AF:74: A4:39:95:04:83:E7:8D:68:4E:18:6B:7D:02:F3:C0:F3: F2:F1:C3:1A:02:21:00:B5:4E:02:AD:AB:C5:AA:7E:B1: E2:81:54:CE:87:B1:B8:12:4E:48:74:FA:EA:98:42:4A: 16:C1:41:CB:2C:31:D8 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 21 06:21:33.304 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:B1:94:AF:03:C4:79:BF:BB:AF:03:64: 92:05:B1:6A:F5:A3:5B:14:99:47:A6:72:FE:AF:B5:A4: B2:07:55:DA:EC:02:21:00:B5:FC:ED:B7:6A:2B:D5:E0: AE:59:E9:A8:F7:84:74:31:74:C9:06:C0:3F:D2:C5:6E: AA:E6:7F:51:01:BC:10:AF
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-30T02:43:57+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Starfield Technologies CN=Starfield TLS Intermediate CA DV - R1v1
Issuer
C=US O=Starfield Technologies CN=Starfield TLS Root CA - R1
Valid from
2025-08-27T12:00:00+00:00
Expires
2040-08-23T11:59:59+00:00
Days remaining
5046
Serial (hex)
C5E225A10DF67804EC5305DCF38E5234
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

06:89:1C:34:A2:E4:68:7C:63:0B:29:85:0C:C9:F6:D4:5D:ED:39:49:1C:F8:77:C7:24:6B:6E:C6:33:58:7A:2C
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
99:B4:6D:DD:8D:0C:6D:FA:2D:A0:9F:22:21:E8:73:C2:18:BC:85:D9
authorityKeyIdentifier
65:79:A6:5B:CD:9B:07:16:A5:40:86:B7:49:8E:22:47:C6:0B:DE:4B
authorityInfoAccess
CA Issuers - URI:http://certificates.starfieldtech.com/repository/sf_tls_root-r1.crt
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.starfieldtech.com/sf_tls_root-r1.crl 
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=Starfield Technologies CN=Starfield TLS Root CA - R1
Issuer
C=US ST=Arizona L=Scottsdale O=Starfield Technologies, Inc. CN=Starfield Root Certificate Authority - G2
Valid from
2025-09-24T12:00:00+00:00
Expires
2037-12-31T23:59:59+00:00
Days remaining
4080
Serial (hex)
466702AA31941FA2C196EFE6D09BAF6C
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

26:A9:3D:60:03:90:77:65:4C:0D:DA:1F:B6:34:AF:5F:F5:C1:14:C7:AC:1F:D0:44:9B:1C:9D:21:78:B0:28:FF
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
65:79:A6:5B:CD:9B:07:16:A5:40:86:B7:49:8E:22:47:C6:0B:DE:4B
authorityKeyIdentifier
7C:0C:32:1F:A7:D9:30:7F:C4:7D:68:A3:62:A8:A1:CE:AB:07:5B:27
authorityInfoAccess
CA Issuers - URI:http://certificates.starfieldtech.com/repository/sfroot-g2.crt
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2 Policy: 2.23.140.1.1
crlDistributionPoints
Full Name: URI:http://crl.starfieldtech.com/sfroot-g2.crl 
-----BEGIN CERTIFICATE-----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II+2LaSzPjUGN28f/HfSBpec/4sfkd6Ubw1SbP9Zq8pBlnJKznU9Muh8RXuRQJoE
tLJW0tGvHsnry4g9M3VjZ2YWJb2FHEFeIqaqg/uUZH6BmkheWkekRx48CXc/aaav
ozY60UE6tOsoRtb2czYvSVSG0eatB470klhV4aOktAe5LeWbxEq97mqbXh6iN2R4
v7wgw0W/UF+s6rBwt8+XAdUUMYoZUFwJvu3N/Xj8pxIWMDalWTgD/30DPuMGIT7T
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Af8EBTADAQH/MB0GA1UdDgQWBBRleaZbzZsHFqVAhrdJjiJHxgveSzAfBgNVHSME
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BQUHMAKGPmh0dHA6Ly9jZXJ0aWZpY2F0ZXMuc3RhcmZpZWxkdGVjaC5jb20vcmVw
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DAECAjAHBgVngQwBATA7BgNVHR8ENDAyMDCgLqAshipodHRwOi8vY3JsLnN0YXJm
aWVsZHRlY2guY29tL3Nmcm9vdC1nMi5jcmwwDQYJKoZIhvcNAQELBQADggEBALhF
42TCewfSOa+2nSV2OzCt7A+n9KJ/6Y8F5PXW++VpYZVWy6kZMrJlDus7K3oACiKE
R+Id7BldmcKxWSw6UeKOQ74DhDTJf+KTDubHDhoCHnK1d2XWJ2W+rOacLfVnvHAv
HBsLeOP6xRT4E+5zdtpnjdW/JSEeLEGETUmEkOvoJIWQptQ2AxIuEIP3FsRneiLZ
SDOyjvtLMOe3a2q8xmiOxTlqi9QmwTV/9IfoDoqsg1C5YL4eiD0xRc1m6NvecSEW
jHIMyCiFWlzO3faUOm067YthhZwzjYLghIra11NvVpsWEgpiGPBhd2UN7nGn1M0j
dZT7YeQWOBjip238/4o=
-----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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