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

one.at · 80.120.17.23:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate CN=`dominic-redirector.a1.net' did not match expected CN=`one.at'

Certificate verification failed

Subject
CN=dominic-redirector.a1.net
Issuer
C=DE O=EUNETIC GmbH CN=EUNETIC RSA Domain Validation Secure Server CA 4
Valid from
2026-09-16T00:00:00+00:00
Expires
2027-04-02T23:59:59+00:00
Days remaining
191
Serial (hex)
56AF092DB2120307A31DDFAD46742AD9
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:dominic-redirector.a1.net, DNS:www.dominic-redirector.a1.net

SHA-256 fingerprint

56:C4:93:F7:E5:42:0E:BA:32:A8:5F:32:43:45:C5:69:0F:B2:AC:D9:4A:F1:1D:56:1F:19:62:28:A0:CE:11:6D
Certificate extensions & PEM
authorityKeyIdentifier
FB:04:1D:DE:80:D6:D7:F7:46:A5:E4:BB:2E:16:B0:22:0C:80:B0:85
subjectKeyIdentifier
B3:72:CC:16:A2:AB:CA:6E:6C:CE:0A:69:DD:17:8E:B3:2B:64:07:37
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 2.23.140.1.2.1
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/EUNETICRSADomainValidationSecureServerCA4.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:dominic-redirector.a1.net, DNS:www.dominic-redirector.a1.net
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 00:1A:5D:1A:1C:2D:93:75:B6:48:55:78:F8:2F:71:A1: AE:6E:EF:39:7D:29:7C:8A:E3:15:7B:CA:DE:E1:A0:1E Timestamp : Sep 16 07:00:27.793 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:C1:28:2C:0C:84:7A:6B:46:68:24:A6: F0:54:19:FA:66:0C:1D:3F:2C:4B:FF:B6:3C:74:A0:C2: E5:79:7A:C6:34:02:21:00:D6:BC:79:29:72:22:8D:6A: A9:B9:E5:47:3C:92:34:E4:60:97:86:9B:79:EB:69:F3: C8:C3:34:B1:EF:0C:A2:AE Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90: 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59 Timestamp : Sep 16 07:00:27.944 2026 GMT Extensions: 00:00:05:00:04:9D:10:55 Signature : ecdsa-with-SHA256 30:45:02:20:55:DD:FC:55:2F:25:6C:47:CF:74:68:52: 39:63:81:09:6B:4F:B3:B4:E6:67:D6:25:E3:D9:C7:8A: 04:4B:21:F3:02:21:00:A5:07:BA:67:44:98:F9:41:26: 8F:D7:1E:E4:5E:97:0E:57:1E:DA:E5:B7:FA:75:69:0E: F8:F1:5C:15:9F:DD:60 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : ED:DA:EB:81:5C:63:21:34:49:B4:7B:E5:07:79:05:AB: D0:D9:31:47:C2:7A:C5:14:6B:3B:C5:8E:43:E9:B6:C7 Timestamp : Sep 16 07:00:27.922 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:E1:1D:F3:C9:46:5C:CA:95:4F:D4:D4: B3:7F:89:32:4C:4D:BA:9E:04:79:C5:E1:CF:F8:39:1C: CB:E4:B0:C7:7D:02:20:67:C1:38:65:EB:43:44:29:FB: 91:0B:3F:4D:4C:CA:03:EB:5E:CA:CE:8C:5B:1E:01:11: 71:F3:E5:CF:76:ED:16
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-23T08:20:49+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=DE O=EUNETIC GmbH CN=EUNETIC RSA Domain Validation Secure Server CA 4
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Valid from
2025-08-20T00:00:00+00:00
Expires
2035-08-19T23:59:59+00:00
Days remaining
3252
Serial (hex)
EE3C9117D63D3945C557EB98A661BB0F
Signature
RSA-SHA384
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

67:2D:1F:9F:5E:54:45:97:17:EE:62:7D:95:D8:5B:9A:1A:82:77:3F:E7:17:AC:D1:6A:B0:DB:9A:B9:E8:C0:F0
Certificate extensions & PEM
authorityKeyIdentifier
56:73:58:64:95:F9:92:1A:B0:12:2A:04:62:79:A1:40:15:88:21:49
subjectKeyIdentifier
FB:04:1D:DE:80:D6:D7:F7:46:A5:E4:BB:2E:16:B0:22:0C:80:B0:85
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.sectigo.com/SectigoPublicServerAuthenticationRootR46.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationRootR46.p7c OCSP - URI:http://ocsp.sectigo.com
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Issuer
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust RSA Certification Authority
Valid from
2021-03-22T00:00:00+00:00
Expires
2038-01-18T23:59:59+00:00
Days remaining
4135
Serial (hex)
D27FBBC1DE359E5216AD6149586099C4
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

92:F3:51:BF:3D:54:16:4D:FA:8D:D8:F9:E1:13:9D:31:50:34:97:86:48:5D:2B:9E:EC:D0:0E:29:71:C1:E6:C5
Certificate extensions & PEM
authorityKeyIdentifier
53:79:BF:5A:AA:2B:4A:CF:54:80:E1:D8:9B:C0:9D:F2:B2:03:66:CB
subjectKeyIdentifier
56:73:58:64:95:F9:92:1A:B0:12:2A:04:62:79:A1:40:15:88:21:49
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: X509v3 Any Policy
crlDistributionPoints
Full Name: URI:http://crl.usertrust.com/USERTrustRSACertificationAuthority.crl
authorityInfoAccess
OCSP - URI:http://ocsp.usertrust.com
-----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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