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

mx2-189.21cn.com · 14.116.211.234:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate subjectAltName did not match expected name `mx2-189.21cn.com'

Certificate verification failed

Subject
C=CN ST=上海市 O=天翼数字生活科技有限公司 CN=*.189.cn
Issuer
C=CN O=WoTrus CA Limited CN=WoTrus RSA OV SSL CA 2
Valid from
2026-09-29T00:00:00+00:00
Expires
2027-04-15T23:59:59+00:00
Days remaining
159
Serial (hex)
77E92B6E904A11DE559026262B1CB534
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.189.cn, DNS:189.cn

SHA-256 fingerprint

61:48:0C:18:BD:A9:8E:47:55:7F:DD:06:A4:9A:4E:71:72:D9:50:DD:74:80:12:D1:EC:04:19:DB:45:00:51:98
Certificate extensions & PEM
authorityKeyIdentifier
85:FC:10:9C:A3:89:C8:3A:4D:CD:D5:4D:FB:F8:48:45:33:8F:13:8A
subjectKeyIdentifier
50:CE:1E:00:D4:62:93:DA:3C:61:23:49:B1:F7:EE:42:67:06:15:FC
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 2.23.140.1.2.2
crlDistributionPoints
Full Name: URI:http://crl.crlocsp.cn/WoTrusRSAOVSSLCA2.crl
authorityInfoAccess
CA Issuers - URI:http://crt.crlocsp.cn/WoTrusRSAOVSSLCA2.crt OCSP - URI:http://ocsp.crlocsp.cn
subjectAltName
DNS:*.189.cn, DNS:189.cn
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 : Sep 29 03:03:23.883 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:19:B7:6C:6E:CB:2D:DF:8C:63:02:BE:F6: CA:A2:1E:BB:C3:9A:77:76:98:FD:95:EA:48:C0:6C:F2: 10:0D:B5:93:02:21:00:F4:43:1B:38:94:7E:0F:D7:87: 38:31:CF:D5:DA:B9:77:C1:21:FE:18:4A:A5:E1:85:28: EC:87:EF:80:23:71:95 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 : Sep 29 03:03:24.036 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:F8:93:9D:10:27:3B:BC:1C:00:1A:6C: 09:07:6E:CA:13:05:D3:DB:1D:6D:C4:13:5B:11:D3:59: B2:3A:E4:10:A2:02:21:00:A5:A8:42:EC:48:47:95:8E: 37:B6:BC:44:AD:03:2F:C7:40:92:2C:70:E3:25:C0:07: 5B:7B:18:DB:FA:87:D6:60 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 29 03:03:24.653 2026 GMT Extensions: 00:00:05:00:17:96:36:85 Signature : ecdsa-with-SHA256 30:46:02:21:00:86:A6:A1:80:DC:4C:7C:A2:1A:B8:F1: 6D:2B:F0:E5:11:C7:D4:66:A9:2A:BC:18:FC:31:E7:4D: 36:8E:25:FE:35:02:21:00:83:A5:D4:69:E0:1F:FE:80: AF:DD:93:22:2C:8A:4B:D8:67:EB:8B:0D:AF:A4:2F:99: AE:9F:42:72:CE:A3:30:5D
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-SHA256 · Checked 2026-11-07T08:59:13+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=CN O=WoTrus CA Limited CN=WoTrus RSA OV SSL CA 2
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Valid from
2025-08-20T00:00:00+00:00
Expires
2035-08-19T23:59:59+00:00
Days remaining
3207
Serial (hex)
AA2C27A00FEB7C0DD877DCDE26B02D12
Signature
RSA-SHA384
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

4B:35:D6:16:F8:72:7F:46:2E:E8:83:E8:41:1D:DE:27:36:3E:85:09:76:4C:2F:51:04:65:4F:CF:48:4E:2B:37
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
85:FC:10:9C:A3:89:C8:3A:4D:CD:D5:4D:FB:F8:48:45:33:8F:13:8A
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
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
4090
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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