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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

mx.telecom-sh.com · 38.83.106.84:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed
The certificate has expired.

Certificate verification failed

Subject
C=CN L=Beijing O=Beijing 263 Enterprise Correspondence Co., Ltd. OU=Email Technology Center CN=*.263.net
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=Secure Site CA G2
Valid from
2019-11-20T00:00:00+00:00
Expires
2022-01-18T12:00:00+00:00
Days remaining
-1710
Serial (hex)
02FE5A6697408A623B4CAB50200E8466
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.263.net, DNS:263.net

SHA-256 fingerprint

D8:5A:D9:D0:97:4B:50:4B:AA:61:43:A6:D4:23:98:08:94:66:16:0E:96:36:21:C5:87:B6:B8:62:39:B0:78:47
Certificate extensions & PEM
authorityKeyIdentifier
C4:11:7E:88:40:86:C2:41:BF:65:F3:1A:E1:B4:53:40:A3:AB:EC:7D
subjectKeyIdentifier
23:37:17:02:FA:08:63:7B:DF:A2:ED:03:3E:AB:E8:28:C3:74:EA:8B
subjectAltName
DNS:*.263.net, DNS:263.net
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/SecureSiteCAG2.crl Full Name: URI:http://crl4.digicert.com/SecureSiteCAG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.1.1 CPS: https://www.digicert.com/CPS Policy: 2.23.140.1.2.2
authorityInfoAccess
OCSP - URI:http://ocsp.dcocsp.cn CA Issuers - URI:http://crl.digicert-cn.com/SecureSiteCAG2.crt
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : BB:D9:DF:BC:1F:8A:71:B5:93:94:23:97:AA:92:7B:47: 38:57:95:0A:AB:52:E8:1A:90:96:64:36:8E:1E:D1:85 Timestamp : Nov 20 03:02:23.713 2019 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:4C:B8:57:F0:A6:45:C4:ED:77:82:10:36: 92:01:75:10:AA:12:A8:E2:9A:E4:DD:E7:AC:A2:67:F7: 78:F7:98:55:02:20:7F:D0:FA:2B:99:E2:A0:05:F5:06: A7:DE:A7:91:93:98:AF:74:66:2D:07:89:38:2B:16:F5: FB:5E:B8:B2:10:75 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 87:75:BF:E7:59:7C:F8:8C:43:99:5F:BD:F3:6E:FF:56: 8D:47:56:36:FF:4A:B5:60:C1:B4:EA:FF:5E:A0:83:0F Timestamp : Nov 20 03:02:23.771 2019 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:86:7F:FF:4D:BF:EB:CB:E4:21:BB:C5: 7B:09:71:FD:B7:99:60:73:3A:66:83:5A:58:4C:06:1E: EF:17:73:D3:86:02:20:61:99:20:B5:64:92:83:65:CE: F5:25:99:B7:44:FD:BB:2C:68:06:D4:0B:99:4F:A2:34: 99:8F:8D:2A:5B:DD:C8 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 56:14:06:9A:2F:D7:C2:EC:D3:F5:E1:BD:44:B2:3E:C7: 46:76:B9:BC:99:11:5C:C0:EF:94:98:55:D6:89:D0:DD Timestamp : Nov 20 03:02:23.796 2019 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:52:85:A5:A8:33:D5:48:F9:8E:57:5E:B2: E9:2F:1D:C8:67:6F:F9:49:44:D2:80:E2:19:99:84:FA: 02:21:56:2C:02:20:1D:D2:F8:AB:16:33:FD:82:3F:3C: 4A:89:5F:A2:7F:B7:D9:A1:B8:8B:C9:1A:50:6B:AE:58: D8:9C:ED:75:82:FD
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: AES128-GCM-SHA256 · Checked 2026-09-23T20:44:25+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=Secure Site CA G2
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root CA
Valid from
2019-06-20T12:21:35+00:00
Expires
2029-06-20T12:21:35+00:00
Days remaining
1000
Serial (hex)
087E18FB8FAA927EE8760A0D8982F512
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

F6:14:AE:2B:10:14:84:F1:5F:66:F4:DD:A5:6E:E6:EB:42:27:28:F1:79:D9:43:99:ED:E1:9A:C1:D8:5A:8B:D3
Certificate extensions & PEM
subjectKeyIdentifier
C4:11:7E:88:40:86:C2:41:BF:65:F3:1A:E1:B4:53:40:A3:AB:EC:7D
authorityKeyIdentifier
03:DE:50:35:56:D1:4C:BB:66:F0:A3:E2:1B:1B:C3:97:B2:3D:D1:55
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE
authorityInfoAccess
OCSP - URI:http://ocsp.dcocsp.cn
crlDistributionPoints
Full Name: URI:http://crl.digicert-cn.com/DigiCertGlobalRootCA.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.digicert.com/CPS User Notice: Explicit Text: Any use of this Certificate constitutes acceptance of the Relying Party Agreement located at https://www.digicert.com/rpa-ua
-----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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