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

mx2.spamfiltering.com · 185.249.122.21:443

Verified

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

Subject
CN=*.spamfiltering.com
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Valid from
2026-09-06T00:00:00+00:00
Expires
2027-03-23T23:59:59+00:00
Days remaining
164
Serial (hex)
0615E1A4A0DEFCEC492A1F276A5E97B7
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.spamfiltering.com, DNS:spamfiltering.com

SHA-256 fingerprint

70:09:FA:6F:4D:1F:85:08:BA:54:B3:09:EE:08:93:41:36:E1:28:0D:5D:95:73:78:39:FD:25:C8:C9:03:BF:E4
Certificate extensions & PEM
authorityKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
subjectKeyIdentifier
6F:64:58:AE:44:DA:6C:B1:7B:68:3A:54:78:11:D5:7C:14:26:F2:83
subjectAltName
DNS:*.spamfiltering.com, DNS:spamfiltering.com
certificatePolicies
Policy: 2.23.140.1.2.1 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://cdp.rapidssl.com/RapidSSLTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.rapidssl.com CA Issuers - URI:http://cacerts.rapidssl.com/RapidSSLTLSRSACAG1.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 : Sep 6 16:41:04.755 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:FC:7B:9F:10:36:D1:76:66:36:A9:C2: C4:B7:9C:50:36:A9:1C:7A:35:EB:96:A4:78:D9:82:89: 3C:35:6D:6D:F9:02:20:5F:F7:E0:D4:93:E7:94:D8:A5: 57:39:7E:C8:22:5E:9D:2C:F0:83:B0:98:D6:EF:19:5D: 05:1D:28:04:72:45:1C Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Sep 6 16:41:04.745 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:04:7B:B6:59:EE:86:97:94:C6:D0:D6:63: 3E:98:61:BD:28:DF:50:F3:3D:F9:B0:C6:DF:16:DF:A3: BC:DC:59:BB:02:20:55:07:05:82:FC:BD:F2:57:3D:B4: 93:F0:6B:F3:8E:58:34:41:BA:AA:66:D7:67:A9:29:36: B4:4C:6E:D4:8E:08 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Sep 6 16:41:04.811 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:8E:C7:38:80:1A:6C:29:36:1E:B7:DB: 0F:49:0A:22:4D:76:EF:B6:59:44:77:65:0A:C6:FF:81: CF:B2:56:03:04:02:21:00:B4:D2:17:99:03:C0:60:A4: C1:56:18:57:27:C4:16:46:1D:4C:97:42:90:D0:A2:D9: 72:A8:B7:A1:FA:58:ED:FE
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-10T17:06:53+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:24:33+00:00
Expires
2027-11-02T12:24:33+00:00
Days remaining
387
Serial (hex)
0B259422CED9812A15A04E99528A0EFA
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

44:22:E9:63:EE:53:CD:58:CC:9F:85:CD:40:BF:5F:FE:C0:09:5F:DF:1A:15:45:35:66:1C:1C:06:BC:AD:C6:9B
Certificate extensions & PEM
subjectKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
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
basicConstraints
CA:TRUE, pathlen:0
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.1.1 CPS: https://www.digicert.com/CPS Policy: 2.16.840.1.114412.1.2 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2
-----BEGIN CERTIFICATE-----
MIIEszCCA5ugAwIBAgIQCyWUIs7ZgSoVoE6ZUooO+jANBgkqhkiG9w0BAQsFADBh
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBH
MjAeFw0xNzExMDIxMjI0MzNaFw0yNzExMDIxMjI0MzNaMGAxCzAJBgNVBAYTAlVT
MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5j
b20xHzAdBgNVBAMTFlJhcGlkU1NMIFRMUyBSU0EgQ0EgRzEwggEiMA0GCSqGSIb3
DQEBAQUAA4IBDwAwggEKAoIBAQC/uVklRBI1FuJdUEkFCuDL/I3aJQiaZ6aibRHj
ap/ap9zy1aYNrphe7YcaNwMoPsZvXDR+hNJOo9gbgOYVTPq8gXc84I75YKOHiVA4
NrJJQZ6p2sJQyqx60HkEIjzIN+1LQLfXTlpuznToOa1hyTD0yyitFyOYwURM+/CI
8FNFMpBhw22hpeAQkOOLmsqT5QZJYeik7qlvn8gfD+XdDnk3kkuuu0eG+vuyrSGr
5uX5LRhFWlv1zFQDch/EKmd163m6z/ycx/qLa9zyvILc7cQpb+k7TLra9WE17YPS
n9ANjG+ECo9PDW3N9lwhKQCNvw1gGoguyCQu7HE7BnW8eSSFAgMBAAGjggFmMIIB
YjAdBgNVHQ4EFgQUDNtsgkkPSmcKuBTuesRIUojrVjgwHwYDVR0jBBgwFoAUTiJU
IBiV5uNu5g/6+rkS7QYXjzkwDgYDVR0PAQH/BAQDAgGGMB0GA1UdJQQWMBQGCCsG
AQUFBwMBBggrBgEFBQcDAjASBgNVHRMBAf8ECDAGAQH/AgEAMDQGCCsGAQUFBwEB
BCgwJjAkBggrBgEFBQcwAYYYaHR0cDovL29jc3AuZGlnaWNlcnQuY29tMEIGA1Ud
HwQ7MDkwN6A1oDOGMWh0dHA6Ly9jcmwzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEds
b2JhbFJvb3RHMi5jcmwwYwYDVR0gBFwwWjA3BglghkgBhv1sAQEwKjAoBggrBgEF
BQcCARYcaHR0cHM6Ly93d3cuZGlnaWNlcnQuY29tL0NQUzALBglghkgBhv1sAQIw
CAYGZ4EMAQIBMAgGBmeBDAECAjANBgkqhkiG9w0BAQsFAAOCAQEAGUSlOb4K3Wtm
SlbmE50UYBHXM0SKXPqHMzk6XQUpCheF/4qU8aOhajsyRQFDV1ih/uPIg7YHRtFi
CTq4G+zb43X1T77nJgSOI9pq/TqCwtukZ7u9VLL3JAq3Wdy2moKLvvC8tVmRzkAe
0xQCkRKIjbBG80MSyDX/R4uYgj6ZiNT/Zg6GI6RofgqgpDdssLc0XIRQEotxIZcK
zP3pGJ9FCbMHmMLLyuBd+uCWvVcF2ogYAawufChS/PT61D9rqzPRS5I2uqa3tmIT
44JhJgWhBnFMb7AGQkvNq9KNS9dd3GWc17H/dXa1enoxzWjE0hBdFjxPhUb0W3wi
8o34/m8Fxw==
-----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
4114
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.

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