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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

ono.es · 212.166.190.62:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed

Certificate verification failed

Subject
C=GB L=Newbury O=Vodafone Group Services Limited CN=www.ono.es
Issuer
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from
2026-01-30T00:00:00+00:00
Expires
2027-01-29T23:59:59+00:00
Days remaining
120
Serial (hex)
044B758EFCB14CC0728E866F41F93D71
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:www.ono.es

SHA-256 fingerprint

70:79:41:EC:91:07:EF:E1:B2:60:5C:98:B3:A9:DA:17:2F:54:7E:D4:55:CC:88:17:2D:BF:35:A3:EC:36:44:2B
Certificate extensions & PEM
authorityKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
subjectKeyIdentifier
F5:22:CF:8D:70:55:4B:4F:B6:52:72:BF:03:16:4E:88:42:27:0A:67
subjectAltName
DNS:www.ono.es
certificatePolicies
Policy: 2.23.140.1.2.2 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://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl Full Name: URI:http://crl4.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.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 : Jan 30 13:14:45.972 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:2F:34:FC:1E:A3:9A:3F:AE:79:A1:71:9A: EE:28:74:B3:CF:91:6C:1A:20:D5:50:EC:C1:FA:41:79: CF:A0:70:B8:02:20:52:CE:C1:3E:43:0E:9F:30:7E:1D: 5D:D7:DA:6B:B2:D1:EF:7C:D5:AA:7D:8D:18:46:70:E8: 7A:4C:AC:EF:24:09 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 : Jan 30 13:14:45.982 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:95:7A:DE:F3:33:BC:C9:DB:D4:FF:05: ED:46:4E:60:06:00:89:5B:0F:C0:38:7E:C2:72:4C:49: 24:74:F7:F8:31:02:21:00:9B:BA:33:9F:A8:4B:14:59: 26:7D:EF:17:C9:B4:83:C0:AB:53:74:99:50:B7:FF:17: 5E:2B:BF:22:36:2B:47:B6 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 : Jan 30 13:14:46.171 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:F2:7A:44:67:54:E1:67:12:8F:A8:35: 9B:40:D8:AE:96:7B:8B:05:40:B2:FD:27:2A:12:56:A4: 31:B8:B4:D4:3F:02:20:34:51:B7:61:7F:1C:5D:2A:45: 51:63:BC:E0:E3:98:89:61:A2:D0:9D:32:F5:1A:10:F3: 65:B6:FD:93:79:96:67
-----BEGIN CERTIFICATE-----
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VSL1uimd+eHh6ALRDA==
-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-10-01T13:27:08+00:00

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

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