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

antispamcloud.com · 130.117.251.9:443

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

Certificate verification failed

Subject
C=GB L=Dundee O=N-ABLE TECHNOLOGIES LTD CN=api.antispamcloud.com
Issuer
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from
2025-12-23T00:00:00+00:00
Expires
2027-01-06T23:59:59+00:00
Days remaining
105
Serial (hex)
0E0B1D7F7D4F0DA9AAF15BF2E1DEF610
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:api.antispamcloud.com, DNS:login.antispamcloud.com, DNS:master.antispamcloud.com, DNS:spamlogin.com, DNS:www.spamlogin.com

SHA-256 fingerprint

F9:80:E0:2D:DE:32:E0:E0:E9:DE:04:51:76:7D:41:CE:72:DD:7A:90:08:BF:F5:EA:13:A3:80:88:9E:79:13:67
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
FB:BA:79:49:A8:E4:DA:5B:0B:0B:20:C2:DC:34:59:51:D9:62:8B:67
subjectAltName
DNS:api.antispamcloud.com, DNS:login.antispamcloud.com, DNS:master.antispamcloud.com, DNS:spamlogin.com, DNS:www.spamlogin.com
certificatePolicies
Policy: 2.23.140.1.2.2 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server 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 : Dec 23 15:27:37.688 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:D9:F6:F0:60:3E:B5:7B:A3:EE:96:AA: 3F:4C:6C:AD:2E:27:58:6D:3E:D1:7F:9C:8F:F1:F4:C0: 9E:C5:5A:3F:CB:02:20:04:D4:B8:8D:D4:17:04:45:D3: 2F:56:B6:77:99:9D:A8:1B:31:23:DC:25:A9:B0:FF:E9: 7D:30:EB:44:07:83:96 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 : Dec 23 15:27:37.746 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:8D:AF:F2:7C:6A:B3:EF:5F:DC:82:F0: 1D:8B:AA:B8:E5:A9:44:E8:2D:E4:94:C9:C8:CC:CA:0C: 2A:02:3F:AB:4D:02:20:3D:C8:92:13:1F:58:96:40:0F: 22:E2:3E:9A:93:74:0B:3F:73:BD:29:60:63:15:5F:19: 64:88:63:4B:29:85:59 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 : Dec 23 15:27:38.148 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:8C:74:8C:06:92:87:6E:7F:4F:99:40: DD:B6:1E:8A:EE:06:74:09:ED:D0:55:03:AF:2D:9C:36: 34:3B:EF:D1:2E:02:21:00:B5:25:9B:24:34:04:F1:BD: E0:30:7D:47:09:B0:80:33:ED:B6:47:1B:B4:F5:CA:B5: 24:69:66:C9:EE:EC:0C:45
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-23T16:43:01+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2021-03-30T00:00:00+00:00
Expires
2031-03-29T23:59:59+00:00
Days remaining
1648
Serial (hex)
0CF5BD062B5602F47AB8502C23CCF066
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C8:02:5F:9F:C6:5F:DF:C9:5B:3C:A8:CC:78:67:B9:A5:87:B5:27:79:73:95:79:17:46:3F:C8:13:D0:B6:25:A9
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
authorityKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalRootG2.crt
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.2.1 Policy: 2.23.140.1.1 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2 Policy: 2.23.140.1.2.3
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2013-08-01T12:00:00+00:00
Expires
2038-01-15T12:00:00+00:00
Days remaining
4131
Serial (hex)
033AF1E6A711A9A0BB2864B11D09FAE5
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

CB:3C:CB:B7:60:31:E5:E0:13:8F:8D:D3:9A:23:F9:DE:47:FF:C3:5E:43:C1:14:4C:EA:27:D4:6A:5A:B1:CB:5F
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
subjectKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
-----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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