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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

22.cn · 122.228.19.36:443

Verified

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

Subject
CN=*.22.cn
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Valid from
2025-11-26T00:00:00+00:00
Expires
2026-11-25T23:59:59+00:00
Days remaining
60
Serial (hex)
054A8C5A78EE2A981A4A37D85C358AC1
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.22.cn, DNS:22.cn

SHA-256 fingerprint

E1:8C:74:85:66:B3:6D:36:46:A2:4E:6E:E3:20:1D:5C:62:55:E3:93:43:B8:CB:4C:7E:06:B8:34:25:78:43:70
Certificate extensions & PEM
authorityKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
subjectKeyIdentifier
CC:7B:63:35:56:4E:38:46:B2:6F:02:0F:13:68:A5:E0:1D:DE:C7:55
subjectAltName
DNS:*.22.cn, DNS:22.cn
certificatePolicies
Policy: 2.23.140.1.2.1 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
crlDistributionPoints
Full Name: URI:http://cdp.rapidssl.com/RapidSSLTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.rapidssl.com CA Issuers - URI:http://cacerts.rapidssl.com/RapidSSLTLSRSACAG1.crt
basicConstraints
CA:FALSE
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 : Nov 26 05:40:27.060 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:22:6D:BC:19:3E:04:A0:08:7C:23:FE:73: 97:5B:68:49:6D:5F:40:88:34:F9:12:8D:9F:44:E4:C9: FD:DC:E5:B8:02:20:7D:2B:66:EA:3C:19:7C:F5:72:24: F5:9A:BB:4F:EA:85:3A:EE:17:91:5C:51:CF:06:2C:89: CF:B9:45:7A:AF:43 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C8:A3:C4:7F:C7:B3:AD:B9:35:6B:01:3F:6A:7A:12:6D: E3:3A:4E:43:A5:C6:46:F9:97:AD:39:75:99:1D:CF:9A Timestamp : Nov 26 05:40:27.059 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:3C:E5:F6:E4:8F:D9:7A:34:47:9B:54:89: 51:E5:DD:76:C2:0D:CF:88:13:5A:45:AB:B4:3E:41:3D: 95:DA:E4:9F:02:21:00:F3:CD:A2:DB:0B:50:AA:5E:F1: C8:32:89:D1:04:6B:AB:8F:9F:2D:4D:E7:46:48:2F:78: 80:0E:E2:22:D9:25:90 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 26 05:40:27.051 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:FC:F4:88:95:5B:7A:3A:31:90:C0:5E: 8E:A3:E6:B5:C2:77:00:A3:CC:1F:59:17:5E:AF:B2:A6: 38:16:1C:E8:E2:02:20:32:C9:9C:F1:1B:84:C1:3A:03: 2D:B5:92:5C:13:41:C7:96:CB:17:B2:E0:9A:CA:E0:F5: DD:A2:FE:FF:3D:27:7F
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-GCM-SHA384 · Checked 2026-09-26T08:32:12+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:24:33+00:00
Expires
2027-11-02T12:24:33+00:00
Days remaining
402
Serial (hex)
0B259422CED9812A15A04E99528A0EFA
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

44:22:E9:63:EE:53:CD:58:CC:9F:85:CD:40:BF:5F:FE:C0:09:5F:DF:1A:15:45:35:66:1C:1C:06:BC:AD:C6:9B
Certificate extensions & PEM
subjectKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
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: 2.16.840.1.114412.1.1 CPS: https://www.digicert.com/CPS Policy: 2.16.840.1.114412.1.2 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2
-----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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