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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

TLSv1.3

antispam2.concentus.net · 64.94.64.133:443

Verified

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

Subject
CN=antispam2.concentus.net
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV R36
Valid from
2026-05-15T00:00:00+00:00
Expires
2026-11-29T23:59:59+00:00
Days remaining
36
Serial (hex)
09FF504C43992A6FEC798CC0459A8E7B
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:antispam2.concentus.net, DNS:www.antispam2.concentus.net

SHA-256 fingerprint

DC:06:7D:6C:B1:BE:37:F7:78:98:E0:A2:39:D8:0B:7F:A9:EF:52:85:C3:34:87:B6:FE:02:9C:96:F2:40:EF:1A
Certificate extensions & PEM
authorityKeyIdentifier
68:C0:12:16:18:0E:AF:CE:F6:87:A6:32:57:A3:46:51:5D:CB:07:27
subjectKeyIdentifier
77:B5:D5:95:B2:C2:6C:E0:E2:28:05:9C:54:57:57:F5:9E:47:78:95
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.2.7 CPS: https://sectigo.com/CPS Policy: 2.23.140.1.2.1
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationCADVR36.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:antispam2.concentus.net, DNS:www.antispam2.concentus.net
ct_precert_scts
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 : May 15 09:33:07.336 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:D7:7C:31:04:D4:22:03:10:DD:B8:11: B7:E3:24:E2:F6:82:4D:39:B5:1C:21:27:EF:FB:67:90: 03:16:C0:A5:D0:02:20:7A:79:09:E6:4C:8B:7E:07:74: 7F:21:B4:31:F5:BA:61:34:09:15:3E:0A:63:C8:0E:D0: 1B:3F:91:54:05:83:5A Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C8:A3:C4:7F:C7:B3:AD:B9:35:6B:01:3F:6A:7A:12:6D: E3:3A:4E:43:A5:C6:46:F9:97:AD:39:75:99:1D:CF:9A Timestamp : May 15 09:33:07.374 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:44:76:AE:0E:83:B7:86:A5:21:5C:17:97: 27:12:84:28:52:11:39:8C:A3:A0:29:25:A4:47:2F:86: E7:D1:E4:5E:02:21:00:92:C6:4F:81:0F:F5:54:B1:81: 24:77:08:CA:99:69:4C:F5:7E:43:73:B2:FA:89:B5:95: F1:3A:DA:3F:31:49:9C Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 6C:FE:50:19:43:A8:5E:A9:16:BC:52:D1:33:E4:DC:C9: 1E:F1:41:1C:7D:25:84:20:D1:73:80:9E:18:18:EB:3A Timestamp : May 15 09:33:08.151 2026 GMT Extensions: 00:00:05:00:0B:9C:31:36 Signature : ecdsa-with-SHA256 30:45:02:21:00:CC:E2:BA:26:D5:81:DE:17:B5:04:21: 46:99:24:73:41:A0:B2:F2:1A:C6:43:3A:81:3D:AC:3C: 1C:55:5D:44:50:02:20:3E:B5:D3:3E:63:C6:98:BB:34: 11:67:6E:88:E5:52:4B:15:BB:96:F5:A6:34:07:4D:71: 27:DD:13:6A:46:2D:51
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-24T17:16:21+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV R36
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Valid from
2021-03-22T00:00:00+00:00
Expires
2036-03-21T23:59:59+00:00
Days remaining
3436
Serial (hex)
397A66CC2756362E0DAA87CA6EABE3B1
Signature
RSA-SHA384
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

8C:54:C3:34:B6:6B:A4:E4:26:77:2A:F4:A3:F9:13:6C:19:A1:AE:C7:29:FD:B2:8C:53:5C:07:A5:A4:EF:22:E0
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
68:C0:12:16:18:0E:AF:CE:F6:87:A6:32:57:A3:46:51:5D:CB:07:27
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: X509v3 Any Policy 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-----

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

View certificate JSON

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