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

ncse.tw · 23.146.248.17:443

Verified
The certificate expires within 30 days.

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

Subject
CN=*.ncse.tw
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV E36
Valid from
2025-09-09T00:00:00+00:00
Expires
2026-10-10T23:59:59+00:00
Days remaining
14
Serial (hex)
F350F7B982F2D7AAAA147E2CCA813BA8
Signature
ecdsa-with-SHA256
Public key
EC 384 secp384r1

Subject alternative names (SAN)

DNS:*.ncse.tw, DNS:ncse.tw

SHA-256 fingerprint

97:63:79:A2:24:A5:28:BA:5B:AD:28:B4:9F:97:C7:6F:B9:C0:3E:C6:18:7E:D3:DA:D6:3E:7F:3F:5D:C6:FD:89
Certificate extensions & PEM
authorityKeyIdentifier
17:99:A8:04:C1:6F:E4:2D:70:A8:0A:10:3D:03:D3:E9:1A:B8:26:63
subjectKeyIdentifier
48:90:0F:AB:BC:05:D1:6F:ED:0E:64:77:6C:EC:FE:0B:98:4A:3E:9A
keyUsage
Digital Signature
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.2.7 CPS: https://sectigo.com/CPS Policy: 2.23.140.1.2.1
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationCADVE36.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:*.ncse.tw, DNS:ncse.tw
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB: B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14 Timestamp : Sep 9 13:47:30.302 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:50:51:A3:46:60:C8:92:BA:7B:26:66:82: C0:82:2C:D4:95:6B:3A:9E:27:FF:3E:E3:1E:AF:02:75: 46:BE:16:1F:02:20:4D:E8:38:CA:DA:B6:A1:FA:92:FA: 95:13:BA:4F:DE:50:7E:44:5C:5A:BC:B3:0C:8E:84:C1: 25:93:9D:16:E3:02 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : AC:AB:30:70:6C:EB:EC:84:31:F4:13:D2:F4:91:5F:11: 1E:42:24:43:B1:F2:A6:8C:4F:3C:2B:3B:A7:1E:02:C3 Timestamp : Sep 9 13:47:30.279 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:7F:E6:AC:68:A6:5C:83:F9:12:57:A4:FA: CF:8D:3C:37:BC:9C:73:19:D3:37:61:6F:CA:5A:A1:B5: 73:C2:4F:F3:02:20:6A:E6:1F:A9:0E:91:05:FA:D6:00: 86:FB:C1:5D:36:C9:85:A5:B2:20:07:3E:49:D5:DB:98: 69:1B:F0:78:D3:37 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Sep 9 13:47:30.413 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:23:33:39:8A:02:E5:09:0A:7A:24:91:EF: 57:FB:A5:17:83:86:D4:DF:01:51:AC:64:EB:B6:3F:0D: DD:1D:6D:30:02:20:1D:B1:7C:FD:7C:B1:F7:3E:B1:72: 72:BA:0C:BB:C5:74:D1:3F:B8:2F:B4:8C:02:94:37:7F: DC:18:F6:76:E9:97
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-26T03:16:15+00:00

Server-presented chain · 3 additional certificates

Chain certificate 1

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV E36
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root E46
Valid from
2021-03-22T00:00:00+00:00
Expires
2036-03-21T23:59:59+00:00
Days remaining
3464
Serial (hex)
36E059ED888DD57AEDD570B6727F9BDA
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

87:3F:0B:A8:0E:3A:C2:22:65:6D:FD:04:15:8C:C1:5C:29:27:D4:2D:5D:05:F0:1D:EE:4A:47:EB:43:A9:16:DF
Certificate extensions & PEM
authorityKeyIdentifier
D1:22:DA:4C:59:F1:4B:5F:26:38:AA:9D:D6:EE:EB:0D:C3:FB:A9:61
subjectKeyIdentifier
17:99:A8:04:C1:6F:E4:2D:70:A8:0A:10:3D:03:D3:E9:1A:B8:26:63
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: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.sectigo.com/SectigoPublicServerAuthenticationRootE46.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationRootE46.p7c OCSP - URI:http://ocsp.sectigo.com
-----BEGIN CERTIFICATE-----
MIIDXzCCAuagAwIBAgIQNuBZ7YiN1Xrt1XC2cn+b2jAKBggqhkjOPQQDAzBfMQsw
CQYDVQQGEwJHQjEYMBYGA1UEChMPU2VjdGlnbyBMaW1pdGVkMTYwNAYDVQQDEy1T
ZWN0aWdvIFB1YmxpYyBTZXJ2ZXIgQXV0aGVudGljYXRpb24gUm9vdCBFNDYwHhcN
MjEwMzIyMDAwMDAwWhcNMzYwMzIxMjM1OTU5WjBgMQswCQYDVQQGEwJHQjEYMBYG
A1UEChMPU2VjdGlnbyBMaW1pdGVkMTcwNQYDVQQDEy5TZWN0aWdvIFB1YmxpYyBT
ZXJ2ZXIgQXV0aGVudGljYXRpb24gQ0EgRFYgRTM2MFkwEwYHKoZIzj0CAQYIKoZI
zj0DAQcDQgAEaKGnbAUnBYljHDmn/yUhxe3TLxKYuyzc9VXoSaCEV5F73Fhfa/Si
/RMsmwTFW3R9s7J6JpYZFmu4do3vk/Vgl6OCAYEwggF9MB8GA1UdIwQYMBaAFNEi
2kxZ8UtfJjiqndbu6w3D+6lhMB0GA1UdDgQWBBQXmagEwW/kLXCoChA9A9PpGrgm
YzAOBgNVHQ8BAf8EBAMCAYYwEgYDVR0TAQH/BAgwBgEB/wIBADAdBgNVHSUEFjAU
BggrBgEFBQcDAQYIKwYBBQUHAwIwGwYDVR0gBBQwEjAGBgRVHSAAMAgGBmeBDAEC
ATBUBgNVHR8ETTBLMEmgR6BFhkNodHRwOi8vY3JsLnNlY3RpZ28uY29tL1NlY3Rp
Z29QdWJsaWNTZXJ2ZXJBdXRoZW50aWNhdGlvblJvb3RFNDYuY3JsMIGEBggrBgEF
BQcBAQR4MHYwTwYIKwYBBQUHMAKGQ2h0dHA6Ly9jcnQuc2VjdGlnby5jb20vU2Vj
dGlnb1B1YmxpY1NlcnZlckF1dGhlbnRpY2F0aW9uUm9vdEU0Ni5wN2MwIwYIKwYB
BQUHMAGGF2h0dHA6Ly9vY3NwLnNlY3RpZ28uY29tMAoGCCqGSM49BAMDA2cAMGQC
MFsKnBQDh64l+v+aUYWjDCJKQMxHUUGmcwAYDIjJ9pbRYItMCIx5xu0oUb6sIfTX
qQIwPddcsDE4KdeLu1hJdpHgdLvsHAK3vygyLGujMU9xBJCDackRT93VHEE0gppg
NqdV
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root E46
Issuer
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust ECC Certification Authority
Valid from
2021-03-22T00:00:00+00:00
Expires
2038-01-18T23:59:59+00:00
Days remaining
4132
Serial (hex)
1A9EAFEC6DE8E19B5C193141B68D90DD
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

EA:6B:89:ED:69:07:A2:09:FF:91:88:67:6F:B1:64:E7:AC:ED:89:4B:89:96:DF:BE:5C:E5:BB:CC:22:DE:4D:DD
Certificate extensions & PEM
authorityKeyIdentifier
3A:E1:09:86:D4:CF:19:C2:96:76:74:49:76:DC:E0:35:C6:63:63:9A
subjectKeyIdentifier
D1:22:DA:4C:59:F1:4B:5F:26:38:AA:9D:D6:EE:EB:0D:C3:FB:A9:61
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/USERTrustECCCertificationAuthority.crl
authorityInfoAccess
OCSP - URI:http://ocsp.usertrust.com
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 3

Subject
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust ECC Certification Authority
Issuer
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust ECC Certification Authority
Valid from
2010-02-01T00:00:00+00:00
Expires
2038-01-18T23:59:59+00:00
Days remaining
4132
Serial (hex)
5C8B99C55A94C5D27156DECD8980CC26
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

4F:F4:60:D5:4B:9C:86:DA:BF:BC:FC:57:12:E0:40:0D:2B:ED:3F:BC:4D:4F:BD:AA:86:E0:6A:DC:D2:A9:AD:7A
Certificate extensions & PEM
subjectKeyIdentifier
3A:E1:09:86:D4:CF:19:C2:96:76:74:49:76:DC:E0:35:C6:63:63:9A
keyUsage
Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
-----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 →