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

TLSv1.2

cleanmx.pt · 130.185.82.183:443

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
The certificate has expired.

Certificate verification failed

Subject
OU=Domain Control Validated CN=*.cleanmx.pt
Issuer
C=BE O=GlobalSign nv-sa CN=AlphaSSL CA - SHA256 - G2
Valid from
2020-01-23T14:02:02+00:00
Expires
2022-04-14T22:27:20+00:00
Days remaining
-1635
Serial (hex)
3D22470F99586AB690DF90E4
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.cleanmx.pt, DNS:cleanmx.pt

SHA-256 fingerprint

D2:DE:DA:8A:CA:BE:A0:74:77:F5:0F:9C:4E:6D:F3:9A:F1:B9:98:37:4B:7B:8E:BC:5F:82:4E:1D:7A:27:5B:91
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
authorityInfoAccess
CA Issuers - URI:http://secure2.alphassl.com/cacert/gsalphasha2g2r1.crt OCSP - URI:http://ocsp2.globalsign.com/gsalphasha2g2
certificatePolicies
Policy: 1.3.6.1.4.1.4146.1.10.10 CPS: https://www.globalsign.com/repository/ Policy: 2.23.140.1.2.1
basicConstraints
CA:FALSE
crlDistributionPoints
Full Name: URI:http://crl2.alphassl.com/gs/gsalphasha2g2.crl
subjectAltName
DNS:*.cleanmx.pt, DNS:cleanmx.pt
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityKeyIdentifier
F5:CD:D5:3C:08:50:F9:6A:4F:3A:B7:97:DA:56:83:E6:69:D2:68:F7
subjectKeyIdentifier
4A:3E:2E:5D:60:1E:8D:A6:8C:3D:E9:3B:78:92:DD:D5:00:99:2C:1D
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : BB:D9:DF:BC:1F:8A:71:B5:93:94:23:97:AA:92:7B:47: 38:57:95:0A:AB:52:E8:1A:90:96:64:36:8E:1E:D1:85 Timestamp : Jan 23 14:02:05.353 2020 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:D1:51:3C:D6:D5:24:60:6F:97:BD:91: 53:FB:5A:A7:54:78:CA:F2:CD:84:93:36:72:52:43:A7: 3D:FE:41:A3:6B:02:21:00:D2:DC:5E:0B:BD:42:B6:86: DF:86:BA:AC:6F:89:24:1D:F6:6A:83:BA:E2:5C:AE:1E: EF:F7:B1:04:1C:9C:FC:88 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 6F:53:76:AC:31:F0:31:19:D8:99:00:A4:51:15:FF:77: 15:1C:11:D9:02:C1:00:29:06:8D:B2:08:9A:37:D9:13 Timestamp : Jan 23 14:02:05.441 2020 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:1A:14:65:2F:CB:20:25:D4:34:AB:5F:8C: 6C:FC:0F:2A:25:CF:B1:23:51:6C:60:7C:93:0F:1D:69: 3C:1D:D7:CD:02:21:00:E7:2B:CB:B4:89:61:06:9B:07: 99:31:2A:C0:54:3D:BB:A5:22:38:A5:81:28:BC:A5:D5: E9:38:4C:B9:21:24:20 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 55:81:D4:C2:16:90:36:01:4A:EA:0B:9B:57:3C:53:F0: C0:E4:38:78:70:25:08:17:2F:A3:AA:1D:07:13:D3:0C Timestamp : Jan 23 14:02:05.403 2020 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:DC:5A:AD:C7:F7:1D:90:49:02:93:82: BF:BA:76:76:B1:4A:32:10:5C:C2:40:D0:BB:73:93:87: 21:88:B9:51:7F:02:21:00:8B:5B:33:7E:0E:57:1C:CB: 81:02:05:DA:17:E8:37:68:81:BB:C7:08:21:78:1D:81: BD:70:0B:71:4B:E8:2E:6B Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 87:75:BF:E7:59:7C:F8:8C:43:99:5F:BD:F3:6E:FF:56: 8D:47:56:36:FF:4A:B5:60:C1:B4:EA:FF:5E:A0:83:0F Timestamp : Jan 23 14:02:05.417 2020 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:ED:17:56:6A:86:43:AE:00:E6:80:DD: B4:95:42:FB:5D:6D:4E:90:49:5D:1C:4E:44:AB:3D:EB: 9D:44:49:78:BE:02:20:6E:F2:A5:92:DC:7D:0C:F0:58: 99:4E:42:BC:B7:B6:3B:BD:B7:F0:34:34:70:F1:D3:77: 87:B2:CC:30:11:D1:DB
-----BEGIN CERTIFICATE-----
MIIG0jCCBbqgAwIBAgIMPSJHD5lYaraQ35DkMA0GCSqGSIb3DQEBCwUAMEwxCzAJ
BgNVBAYTAkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMSIwIAYDVQQDExlB
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6E8pifiIsSyxahTC+gWxPYKKlG6M8w==
-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-10-05T18:55:49+00:00

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

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