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

ssi-schaefer.com · 20.52.208.156:443

Verified

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

Subject
CN=*.ssi-schaefer.com
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R3 DV TLS CA 2020
Valid from
2025-11-19T09:01:18+00:00
Expires
2026-12-21T09:01:17+00:00
Days remaining
47
Serial (hex)
711C05EBAC1F623F3A3C4F6F
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.ssi-schaefer.com, DNS:owa.ssi-schaefer.com, DNS:mail.ssi-schaefer.com, DNS:autodiscover.ssi-schaefer.com, DNS:www.ssi-schaefer.com, DNS:ssi-schaefer.com

SHA-256 fingerprint

E5:BF:1A:9F:BE:B7:F9:E4:27:C0:42:E4:85:74:BE:93:55:85:FE:8D:07:D4:F3:37:59:53:28:C6:28:F2:6B:F7
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
authorityInfoAccess
CA Issuers - URI:http://secure.globalsign.com/cacert/gsgccr3dvtlsca2020.crt OCSP - URI:http://ocsp.globalsign.com/gsgccr3dvtlsca2020
certificatePolicies
Policy: 1.3.6.1.4.1.4146.1.10 CPS: https://www.globalsign.com/repository/ Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/gsgccr3dvtlsca2020.crl
subjectAltName
DNS:*.ssi-schaefer.com, DNS:owa.ssi-schaefer.com, DNS:mail.ssi-schaefer.com, DNS:autodiscover.ssi-schaefer.com, DNS:www.ssi-schaefer.com, DNS:ssi-schaefer.com
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityKeyIdentifier
0D:98:C0:73:7F:AB:BD:BD:D9:47:4B:49:AD:0A:4A:0C:AC:3E:C7:7C
subjectKeyIdentifier
89:F2:5F:6F:DA:FB:57:2B:93:C4:C3:26:62:1E:6A:0E:11:E5:C6:5D
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65: 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8 Timestamp : Nov 19 09:01:23.016 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:64:D6:7D:7F:F9:B9:EF:00:EE:B7:4C:32: DC:EA:FB:31:B8:FB:6B:5F:80:75:D3:B1:ED:CB:8E:FE: 7C:CB:9E:3A:02:21:00:BB:30:20:DD:2C:04:A3:C9:C9: 17:99:86:9E:EA:74:2B:80:E7:8F:BF:49:A0:F9:6F:10: 51:09:5D:03:D1:2E:04 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E: F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7 Timestamp : Nov 19 09:01:23.055 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:B1:90:D7:04:2C:04:99:53:36:6D:26: 8F:08:74:59:42:7F:80:46:77:54:9E:26:75:FB:FF:1E: 8C:1C:BE:48:84:02:21:00:F6:FF:F1:5F:B9:EF:DE:E5: D1:2E:34:A7:5E:B6:46:DC:F8:FA:35:19:33:B3:25:19: E8:A3:80:5D:6B:60:2F:78 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : Nov 19 09:01:23.003 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:DA:8F:74:5E:D0:BA:2E:92:B9:5B:2F: 17:3E:DA:84:81:A6:87:12:30:7D:36:38:1A:D2:BD:ED: 65:0F:F4:51:BA:02:21:00:E5:8A:1B:EA:48:86:4B:95: 7D:2F:4E:04:B4:7E:A6:F9:9E:8F:E8:84:74:22:1F:56: 1B:F9:06:0F:C8:ED:AE:D0
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-03T17:36:42+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R3 DV TLS CA 2020
Issuer
OU=GlobalSign Root CA - R3 O=GlobalSign CN=GlobalSign
Valid from
2020-07-28T00:00:00+00:00
Expires
2029-03-18T00:00:00+00:00
Days remaining
865
Serial (hex)
77BD0E0742D5D9E9D049D774D02A6F9A
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

76:25:38:43:95:09:C4:11:C4:37:D3:C5:67:56:3E:13:78:67:12:81:FC:4A:14:64:AD:D0:31:87:08:43:67:6E
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
0D:98:C0:73:7F:AB:BD:BD:D9:47:4B:49:AD:0A:4A:0C:AC:3E:C7:7C
authorityKeyIdentifier
8F:F0:4B:7F:A8:2E:45:24:AE:4D:50:FA:63:9A:8B:DE:E2:DD:1B:BC
authorityInfoAccess
OCSP - URI:http://ocsp2.globalsign.com/rootr3 CA Issuers - URI:http://secure.globalsign.com/cacert/root-r3.crt
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/root-r3.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.globalsign.com/repository/
-----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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