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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

mailgate1.edt.de · 213.165.96.16:443

Verified

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

Subject
CN=*.edt.de
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=Thawte TLS RSA CA G1
Valid from
2026-01-26T00:00:00+00:00
Expires
2027-02-01T23:59:59+00:00
Days remaining
90
Serial (hex)
08AF546D9350FF0E585A4EB75D506770
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.edt.de, DNS:edt.de

SHA-256 fingerprint

7A:38:42:15:B5:F8:98:12:31:A9:55:D5:7E:B8:A9:5B:58:9E:28:4A:CB:E1:54:36:C9:00:23:03:0C:E1:B1:30
Certificate extensions & PEM
authorityKeyIdentifier
A5:8C:FE:32:CC:EB:0F:2C:D4:19:C6:08:B8:00:24:88:5D:C3:C5:B7
subjectKeyIdentifier
64:45:73:17:F1:30:B1:48:16:81:6E:F2:56:B0:04:BB:40:E0:03:72
subjectAltName
DNS:*.edt.de, DNS:edt.de
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.thawte.com/ThawteTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.thawte.com CA Issuers - URI:http://cacerts.thawte.com/ThawteTLSRSACAG1.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 : Jan 26 08:54:51.897 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:7F:68:C6:9F:0B:49:E2:C2:B1:40:2A:32: 5C:EE:ED:BB:91:B0:10:59:93:D9:AF:6F:DB:E7:DE:D9: 38:CF:8A:CA:02:20:3A:60:AB:1E:B4:04:93:B4:97:6F: 2E:AE:C1:74:C5:C5:34:07:7B:46:04:11:2F:5D:1D:24: B6:FC:EF:97:95:3E 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 : Jan 26 08:54:51.922 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:5E:75:DC:10:02:59:48:12:0E:10:19:C4: B6:1C:45:BF:F0:ED:10:C1:B6:24:A4:C2:FF:7A:89:4E: 53:85:22:35:02:20:43:EE:DE:E3:2B:62:5D:56:42:AC: 54:21:9D:0A:E7:B1:1E:70:9E:CA:A5:C1:D7:E2:49:5F: 5D:CA:56:0B:17:82 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 : Jan 26 08:54:52.101 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:CB:28:83:EB:E8:7B:FE:B2:82:93:3B: 84:9D:E8:9D:A8:19:89:C8:F0:31:6E:80:0A:FD:5B:ED: 2A:0C:24:6C:87:02:21:00:EC:FD:A7:73:94:3B:AB:30: 58:58:B9:CB:5C:22:77:51:C2:F2:B0:7A:B8:90:A9:88: F1:A4:41:CC:97:FA:88:66
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-03T18:10:34+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

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
4090
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-----

Chain certificate 2

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=Thawte TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:24:25+00:00
Expires
2027-11-02T12:24:25+00:00
Days remaining
363
Serial (hex)
090EE8C5DE5BFA62D2AE2FF7097C4857
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

4B:CC:5E:23:4F:E8:1E:DE:4E:AF:88:3A:A1:9C:31:33:5B:0B:26:E8:5E:06:6B:99:45:E4:CB:61:53:EB:20:C2
Certificate extensions & PEM
subjectKeyIdentifier
A5:8C:FE:32:CC:EB:0F:2C:D4:19:C6:08:B8:00:24:88:5D:C3:C5:B7
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: X509v3 Any Policy CPS: https://www.digicert.com/CPS
-----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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