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

mail.com · 217.72.199.107:443

Verified

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

Subject
C=DE ST=Rheinland-Pfalz O=1&1 Mail & Media GmbH CN=*.mail.com
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA OV R36
Valid from
2026-09-02T00:00:00+00:00
Expires
2027-03-19T23:59:59+00:00
Days remaining
171
Serial (hex)
900ECED57BF62419C8717888261B2AA0
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.mail.com, DNS:mail.com

SHA-256 fingerprint

D9:B6:D0:46:01:33:37:ED:18:C6:E7:1C:D6:B7:DF:26:5A:82:0D:CD:C4:AB:87:08:FE:89:D9:0D:04:9B:40:3A
Certificate extensions & PEM
authorityKeyIdentifier
E3:66:74:BB:70:68:8D:2C:5D:4E:0E:A6:4A:8F:9B:37:22:9C:82:92
subjectKeyIdentifier
31:5C:B8:AA:A4:04:FB:29:71:F1:05:61:70:73:27:84:03:D8:9B:ED
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.1.3.4 CPS: https://sectigo.com/CPS Policy: 2.23.140.1.2.2
crlDistributionPoints
Full Name: URI:http://crl.sectigo.com/SectigoPublicServerAuthenticationCAOVR36.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationCAOVR36.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:*.mail.com, DNS:mail.com
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90: 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59 Timestamp : Sep 2 06:38:41.045 2026 GMT Extensions: 00:00:05:00:02:FB:2E:7A Signature : ecdsa-with-SHA256 30:45:02:20:06:C3:EA:5A:AA:1C:D1:6F:15:BE:77:AC: 47:DE:81:77:F7:47:02:87:B7:9F:E5:6C:F4:33:CA:38: 90:D2:92:ED:02:21:00:F6:8E:8A:6D:E9:AF:CA:4F:FA: E7:66:A7:B6:83:6D:63:CE:94:1E:A1:78:DF:4E:0F:B1: 63:7F:C8:76:14:E0:AF 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 : Sep 2 06:38:40.894 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:92:51:6C:6B:EB:5C:CC:2D:53:13:D6: 14:6C:A0:14:AD:F5:EA:9E:B8:65:A2:13:97:77:39:A6: E2:41:5D:00:EB:02:20:4B:9B:C4:4B:5E:B2:39:60:97: 92:CC:0D:CC:84:DB:33:A1:48:B4:DD:FF:B9:99:04:2D: 6D:09:D2:61:A3:98:75 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : A2:81:00:18:73:4E:17:6E:1D:47:E0:95:40:F3:81:BA: 54:66:97:CD:63:A8:43:50:71:6E:B8:09:4E:DA:F1:0D Timestamp : Sep 2 06:38:41.578 2026 GMT Extensions: 00:00:05:00:0B:88:3F:11 Signature : ecdsa-with-SHA256 30:45:02:21:00:AD:50:AA:BC:D5:75:BC:45:9F:27:58: 4F:78:1D:66:D9:CD:C9:56:9C:94:F7:B1:CC:14:F8:A3: D6:3E:B1:70:C7:02:20:02:5B:B5:F0:2A:F0:56:0E:5E: 6C:DD:39:66:DD:BD:2F:E9:AD:81:84:35:7A:AC:60:5B: 75:76:8C:65:84:4C:52
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-29T22:55:41+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA OV 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
3461
Serial (hex)
2C1A3C76E943DDDDFF191B31890AED71
Signature
RSA-SHA384
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

65:42:D1:76:BE:D5:0F:19:3C:0C:E2:97:AE:44:EC:D8:A0:A8:6B:EC:2E:DE:68:27:69:34:40:59:B4:E7:85:30
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
E3:66:74:BB:70:68:8D:2C:5D:4E:0E:A6:4A:8F:9B:37:22:9C:82:92
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: 2.23.140.1.2.2
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-----

Chain certificate 2

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Issuer
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust RSA Certification Authority
Valid from
2021-03-22T00:00:00+00:00
Expires
2038-01-18T23:59:59+00:00
Days remaining
4129
Serial (hex)
D27FBBC1DE359E5216AD6149586099C4
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

92:F3:51:BF:3D:54:16:4D:FA:8D:D8:F9:E1:13:9D:31:50:34:97:86:48:5D:2B:9E:EC:D0:0E:29:71:C1:E6:C5
Certificate extensions & PEM
authorityKeyIdentifier
53:79:BF:5A:AA:2B:4A:CF:54:80:E1:D8:9B:C0:9D:F2:B2:03:66:CB
subjectKeyIdentifier
56:73:58:64:95:F9:92:1A:B0:12:2A:04:62:79:A1:40:15:88:21:49
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: X509v3 Any Policy
crlDistributionPoints
Full Name: URI:http://crl.usertrust.com/USERTrustRSACertificationAuthority.crl
authorityInfoAccess
OCSP - URI:http://ocsp.usertrust.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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