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

TLS

mail.dedic-center.ru · 91.221.71.4:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A00018A:SSL routines::dh key too small

Certificate verification failed

Subject
CN=dedic-center.ru
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R46 AlphaSSL CA 2025
Valid from
2026-10-13T04:27:04+00:00
Expires
2027-04-30T04:27:04+00:00
Days remaining
174
Serial (hex)
74316B1CF7C47D5A4A4E8F1D
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:dedic-center.ru

SHA-256 fingerprint

7F:B4:7F:3A:14:7E:35:2E:83:D1:53:87:BB:B8:C9:28:1A:8E:C9:80:38:DA:BF:BB:D9:7F:F8:33:78:75:81:76
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
authorityInfoAccess
CA Issuers - URI:http://secure.globalsign.com/cacert/gsgccr46alphasslca2025.crt OCSP - URI:http://ocsp.globalsign.com/gsgccr46alphasslca2025
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/gsgccr46alphasslca2025.crl
subjectAltName
DNS:dedic-center.ru
authorityKeyIdentifier
A3:4C:AC:B1:BF:B4:88:ED:8B:74:D8:5F:34:38:C9:E9:0A:25:9E:7B
extendedKeyUsage
TLS Web Server Authentication
subjectKeyIdentifier
D5:F5:27:24:E2:02:83:82:9A:CF:B7:52:B3:5A:D8:12:47:34:E4:75
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Oct 13 04:27:08.738 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:CF:B4:6B:CF:EA:41:6E:6A:58:71:29: AB:C3:40:25:52:F2:C9:70:66:4A:91:9C:5E:28:B1:4F: 0D:DA:89:7D:9B:02:20:6E:C2:0A:C2:71:59:91:87:93: 15:8A:E1:D5:D3:B0:25:7B:EC:35:1E:70:2F:9A:66:9B: 23:ED:4A:1D:BE:59:D0 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 : Oct 13 04:27:08.544 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:97:4B:69:63:3E:8A:17:D8:BC:92:54: E8:54:DA:62:99:B3:73:7A:B4:6F:C2:DF:7A:B6:82:72: DE:96:9C:1C:31:02:21:00:AF:D8:5C:E2:2F:2A:82:A0: 94:F2:56:E0:AC:F5:F5:A7:3B:89:28:64:F3:D7:F0:9C: 89:70:8E:22:51:6A:E5:BD 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 : Oct 13 04:27:08.534 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:61:2F:C7:EF:49:1A:1D:02:B0:7D:C7:A9: 17:23:40:91:8F:35:E5:4F:09:70:42:AD:46:97:4B:FE: C9:64:24:DB:02:21:00:E3:0A:01:8B:91:3D:C5:B8:7B: EB:0D:40:91:EA:68:19:A7:87:72:AA:9E:29:B8:F8:AF: 26:6D:6D:67:11:CB:92
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: Unavailable · Checked 2026-11-06T04:46:17+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R46 AlphaSSL CA 2025
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign Root R46
Valid from
2025-09-17T02:55:30+00:00
Expires
2029-06-23T00:00:00+00:00
Days remaining
959
Serial (hex)
8443586F6396264381337C801A2E6118
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

D2:AC:9D:CC:7A:25:50:29:A5:F5:18:0D:63:F1:A9:ED:60:E1:14:12:A8:5C:14:8D:4B:71:F6:AE:1A:36:69:5C
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
A3:4C:AC:B1:BF:B4:88:ED:8B:74:D8:5F:34:38:C9:E9:0A:25:9E:7B
authorityKeyIdentifier
03:5C:AB:73:81:87:A8:CC:B0:A6:D5:94:E2:36:96:49:FF:05:99:2C
authorityInfoAccess
OCSP - URI:http://ocsp.globalsign.com/rootr46 CA Issuers - URI:http://secure.globalsign.com/cacert/rootr46.crt
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/rootr46.crl
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.3.6.1.4.1.4146.10.1.3
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign Root R46
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign Root R46
Valid from
2019-03-20T00:00:00+00:00
Expires
2046-03-20T00:00:00+00:00
Days remaining
7073
Serial (hex)
11D2BBB9D723189E405F0A9D2DD0DF2567D1
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

4F:A3:12:6D:8D:3A:11:D1:C4:85:5A:4F:80:7C:BA:D6:CF:91:9D:3A:5A:88:B0:3B:EA:2C:63:72:D9:3C:40:C9
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
subjectKeyIdentifier
03:5C:AB:73:81:87:A8:CC:B0:A6:D5:94:E2:36:96:49:FF:05:99:2C
-----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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