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

chengda.com.cn · 123.177.52.200:443

Verified
The certificate expires within 30 days.

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

Subject
C=CN ST=辽宁省 L=大连市 O=辽宁成大股份有限公司 CN=*.chengda.com.cn
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=Thawte TLS RSA CA G1
Valid from
2025-10-10T00:00:00+00:00
Expires
2026-11-02T23:59:59+00:00
Days remaining
15
Serial (hex)
0F0836FD68631482BE3F7928CF630A90
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.chengda.com.cn, DNS:chengda.com.cn

SHA-256 fingerprint

B6:66:DB:4B:BB:82:C5:C4:B5:A4:11:1A:32:BE:AC:B9:92:1C:C0:95:BE:B1:28:EE:AD:A6:5A:69:B2:01:5E:0B
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
01:5B:04:69:9D:BD:59:92:2C:43:E3:3E:3A:E6:BD:7B:1B:36:D7:6D
subjectAltName
DNS:*.chengda.com.cn, DNS:chengda.com.cn
certificatePolicies
Policy: 2.23.140.1.2.2 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 : 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 : Oct 10 05:22:22.861 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:74:3E:0D:D9:74:7D:59:52:02:7B:AD:85: 3B:E3:52:CE:B9:BC:99:2E:9F:00:99:7D:A1:5F:CE:43: 1E:25:EE:FE:02:21:00:F0:88:46:C2:AB:F9:D4:07:1F: 38:83:73:2E:BC:AD:1C:21:9A:7D:99:15:5C:61:D7:EB: FB:85:7E:02:52:83:6F 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 : Oct 10 05:22:22.925 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:B4:67:AD:F6:27:21:9D:06:97:6B:05: B2:0D:F2:B8:E2:25:18:E3:A5:4D:92:93:00:99:E4:B5: EE:7B:9E:B9:A7:02:20:4A:AE:C1:8B:F3:C3:4D:AC:CB: CC:60:10:36:A9:FC:4C:0C:E5:2D:D4:C3:A2:D0:93:8B: 37:BD:FE:97:7F:C8:14 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 : Oct 10 05:22:22.942 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:41:C9:6A:5E:57:00:9B:11:69:55:2F:D5: 58:57:7D:6F:94:EF:19:2E:79:70:6E:CC:3B:2C:8D:8C: 97:01:56:00:02:20:76:FF:1E:AD:F3:F3:22:69:72:FA: 13:18:D8:FA:15:E3:C8:61:43:B0:E1:D4:2A:0A:66:DD: 44:DE:A3:CC:CF:76
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-18T10:13:16+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

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
380
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-----

Chain certificate 2

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
4107
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-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

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