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

TLSv1.2

ksc.net · 203.155.1.1:443

Verified

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

Subject
CN=*.ksc.net
Issuer
C=AT O=ZeroSSL CN=ZeroSSL RSA Domain Secure Site CA
Valid from
2026-01-05T00:00:00+00:00
Expires
2027-01-05T23:59:59+00:00
Days remaining
88
Serial (hex)
E267C6C1CC73D94EEA16194E1C5A51F7
Signature
RSA-SHA384
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.ksc.net, DNS:ksc.net

SHA-256 fingerprint

52:D4:BC:B9:9B:8A:80:70:A6:47:9C:86:A7:DA:DA:48:43:4A:49:B4:02:1E:6F:77:AE:DB:79:97:A4:75:1B:2E
Certificate extensions & PEM
authorityKeyIdentifier
C8:D9:78:68:A2:D9:19:68:D5:3D:72:DE:5F:0A:3E:DC:B5:86:86:A6
subjectKeyIdentifier
D1:C9:27:16:FF:57:F2:F3:00:08:3A:12:DE:F1:78:81:04:E2:79:17
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.2.78 CPS: https://sectigo.com/CPS Policy: 2.23.140.1.2.1
authorityInfoAccess
CA Issuers - URI:http://zerossl.crt.sectigo.com/ZeroSSLRSADomainSecureSiteCA.crt OCSP - URI:http://zerossl.ocsp.sectigo.com
subjectAltName
DNS:*.ksc.net, DNS:ksc.net
ct_precert_scts
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 5 02:11:51.803 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:62:49:D5:ED:41:46:7E:56:9C:46:AC:7C: 4D:5B:12:C9:4B:2F:EE:0D:FE:1C:A9:39:B4:8C:A3:A8: 14:13:DD:4F:02:20:0C:0F:B6:5F:12:6E:D2:35:78:3B: 18:3C:D6:2D:68:E9:37:2C:2D:84:3D:99:93:F4:94:8B: A2:20:09:C0:0C:C0 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 8E:CA:47:0B:AC:DE:6A:F3:A2:06:B0:A4:7A:84:B7:46: FE:1F:C6:BF:95:3E:25:E6:9B:4E:E4:02:48:F3:C6:E8 Timestamp : Jan 5 02:11:52.186 2026 GMT Extensions: 00:00:05:00:01:0F:02:C2 Signature : ecdsa-with-SHA256 30:46:02:21:00:BA:C5:7E:1F:86:98:CC:06:39:4B:42: 08:6D:BE:B4:3A:1A:1E:21:89:74:18:FB:82:EB:54:B7: 1F:08:38:2D:4B:02:21:00:C3:F1:3F:F9:A3:66:0E:42: 0F:A0:F8:D2:3D:55:21:FF:97:70:D2:EC:79:84:85:C6: DB:AC:D8:2B:B2:47:5C:11 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 : Jan 5 02:11:52.250 2026 GMT Extensions: 00:00:05:00:00:07:A0:51 Signature : ecdsa-with-SHA256 30:46:02:21:00:FF:71:F1:B8:48:BF:A7:FD:7D:45:88: 61:17:09:DB:D9:52:4D:4D:6C:81:C6:7A:E4:6B:27:2E: F3:77:69:57:8F:02:21:00:DD:7D:C1:44:E8:BE:C2:0F: 67:8A:D5:03:A6:CC:23:A0:4B:E8:2D:8B:B1:DC:77:24: AD:A1:B1:F5:81:32:E1:C9
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-SHA384 · Checked 2026-10-09T04:23:59+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=AT O=ZeroSSL CN=ZeroSSL RSA Domain Secure Site CA
Issuer
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust RSA Certification Authority
Valid from
2020-01-30T00:00:00+00:00
Expires
2030-01-29T23:59:59+00:00
Days remaining
1208
Serial (hex)
6C55ABDBD00792C79D070CD8119ED6BF
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

21:AC:C1:DB:D6:94:4F:9A:C1:8C:78:2C:B5:C3:28:D6:C2:82:1C:6B:63:73:1F:A3:B8:98:7F:56:25:DE:8A:0D
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
C8:D9:78:68:A2:D9:19:68:D5:3D:72:DE:5F:0A:3E:DC:B5:86:86:A6
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.2.78 Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.usertrust.com/USERTrustRSACertificationAuthority.crl
authorityInfoAccess
CA Issuers - URI:http://crt.usertrust.com/USERTrustRSAAddTrustCA.crt OCSP - URI:http://ocsp.usertrust.com
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust RSA Certification Authority
Issuer
C=GB ST=Greater Manchester L=Salford O=Comodo CA Limited CN=AAA Certificate Services
Valid from
2019-03-12T00:00:00+00:00
Expires
2028-12-31T23:59:59+00:00
Days remaining
814
Serial (hex)
3972443AF922B751D7D36C10DD313595
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

68:B9:C7:61:21:9A:5B:1F:01:31:78:44:74:66:5D:B6:1B:BD:B1:09:E0:0F:05:CA:9F:74:24:4E:E5:F5:F5:2B
Certificate extensions & PEM
authorityKeyIdentifier
A0:11:0A:23:3E:96:F1:07:EC:E2:AF:29:EF:82:A5:7F:D0:30:A4:B4
subjectKeyIdentifier
53:79:BF:5A:AA:2B:4A:CF:54:80:E1:D8:9B:C0:9D:F2:B2:03:66:CB
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
certificatePolicies
Policy: X509v3 Any Policy
crlDistributionPoints
Full Name: URI:http://crl.comodoca.com/AAACertificateServices.crl
authorityInfoAccess
OCSP - URI:http://ocsp.comodoca.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

Registration / WHOIS →DNS records →