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

drei.com · 213.94.80.187:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate CN=`www.drei.at' did not match expected CN=`drei.com'

Certificate verification failed

Subject
C=AT ST=Wien L=Wien O=Hutchison Drei Austria GmbH CN=www.drei.at
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign RSA OV SSL CA 2018
Valid from
2026-06-18T07:41:31+00:00
Expires
2027-01-03T07:41:31+00:00
Days remaining
102
Serial (hex)
415D6F88166E21667EA8479B
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:www.drei.at, DNS:drei.at

SHA-256 fingerprint

05:19:D8:04:47:A8:03:A0:1D:40:B0:12:FB:6F:E6:DA:3A:AF:71:EF:16:83:71:38:82:CC:71:2B:E3:35:4B:88
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
authorityInfoAccess
CA Issuers - URI:http://secure.globalsign.com/cacert/gsrsaovsslca2018.crt OCSP - URI:http://ocsp.globalsign.com/gsrsaovsslca2018
certificatePolicies
Policy: 1.3.6.1.4.1.4146.1.20 CPS: https://www.globalsign.com/repository/ Policy: 2.23.140.1.2.2
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/gsrsaovsslca2018.crl
subjectAltName
DNS:www.drei.at, DNS:drei.at
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityKeyIdentifier
F8:EF:7F:F2:CD:78:67:A8:DE:6F:8F:24:8D:88:F1:87:03:02:B3:EB
subjectKeyIdentifier
24:AF:A5:62:1C:7A:C6:92:3E:AB:F1:DC:F2:D7:55:85:74:A1:81:92
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Jun 18 07:41:34.407 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:78:33:E2:61:02:0D:1C:4A:69:56:0A:A4: 0F:CC:66:78:98:90:94:B2:02:E3:F0:2F:EA:94:09:EC: 8D:BE:56:1E:02:21:00:CE:04:0D:25:6D:CA:3C:52:25: 0C:7B:F9:BD:D3:73:BB:CB:19:C2:24:DC:01:BB:B9:ED: 98:DC:A5:97:38:E9:82 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 : Jun 18 07:41:34.192 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:0B:6E:C0:D6:C3:A4:40:76:27:B4:70:90: 45:AF:89:F9:63:32:4D:78:06:AF:7C:E8:6D:D5:0D:80: 8E:1B:BE:FC:02:20:0E:60:CC:68:23:E5:39:C6:B4:1E: 6B:6F:D6:EC:5D:D1:0B:4B:58:83:FF:41:6F:FF:AF:11: C7:4C:0E:C9:45:DC Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Jun 18 07:41:34.209 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:7A:B2:2F:73:D6:49:51:3B:FF:25:FD:AA: AD:C5:0A:CC:CB:4C:8D:63:A9:5A:35:C7:8A:F5:0F:62: 42:DF:6E:D9:02:21:00:F5:2F:AA:03:60:E1:5A:14:9A: DC:79:0F:3D:1D:47:A3:D1:9A:CD:DE:48:C5:23:BC:B8: 06:7E:EC:A8:7B:5B:FD
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-22T15:40:39+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign RSA OV SSL CA 2018
Issuer
OU=GlobalSign Root CA - R3 O=GlobalSign CN=GlobalSign
Valid from
2018-11-21T00:00:00+00:00
Expires
2028-11-21T00:00:00+00:00
Days remaining
790
Serial (hex)
01EE5F221DFC623BD4333A8557
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

B6:76:FF:A3:17:9E:88:12:09:3A:1B:5E:AF:EE:87:6A:E7:A6:AA:F2:31:07:8D:AD:1B:FB:21:CD:28:93:76:4A
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
F8:EF:7F:F2:CD:78:67:A8:DE:6F:8F:24:8D:88:F1:87:03:02:B3:EB
authorityKeyIdentifier
8F:F0:4B:7F:A8:2E:45:24:AE:4D:50:FA:63:9A:8B:DE:E2:DD:1B:BC
authorityInfoAccess
OCSP - URI:http://ocsp2.globalsign.com/rootr3
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/root-r3.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.globalsign.com/repository/
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
OU=GlobalSign Root CA - R3 O=GlobalSign CN=GlobalSign
Issuer
OU=GlobalSign Root CA - R3 O=GlobalSign CN=GlobalSign
Valid from
2009-03-18T10:00:00+00:00
Expires
2029-03-18T10:00:00+00:00
Days remaining
907
Serial (hex)
04000000000121585308A2
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

CB:B5:22:D7:B7:F1:27:AD:6A:01:13:86:5B:DF:1C:D4:10:2E:7D:07:59:AF:63:5A:7C:F4:72:0D:C9:63:C5:3B
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
subjectKeyIdentifier
8F:F0:4B:7F:A8:2E:45:24:AE:4D:50:FA:63:9A:8B:DE:E2:DD:1B:BC
-----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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