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

optele.ru · 178.210.64.238:443

Verified

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

Subject
CN=*.optele.ru
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R3 DV TLS CA 2020
Valid from
2026-02-24T08:14:38+00:00
Expires
2027-03-28T08:14:37+00:00
Days remaining
180
Serial (hex)
1337BC8D12ADA5BB5341CE02
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.optele.ru, DNS:optele.ru

SHA-256 fingerprint

B1:17:6F:5A:7F:9F:E6:A7:0D:9B:AA:B1:0B:3E:BC:F8:5E:6E:BD:A0:65:5B:5A:1D:C9:D4:A7:F6:3D:FA:82:94
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
authorityInfoAccess
CA Issuers - URI:http://secure.globalsign.com/cacert/gsgccr3dvtlsca2020.crt OCSP - URI:http://ocsp.globalsign.com/gsgccr3dvtlsca2020
certificatePolicies
Policy: 1.3.6.1.4.1.4146.1.10 CPS: https://www.globalsign.com/repository/ Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/gsgccr3dvtlsca2020.crl
subjectAltName
DNS:*.optele.ru, DNS:optele.ru
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityKeyIdentifier
0D:98:C0:73:7F:AB:BD:BD:D9:47:4B:49:AD:0A:4A:0C:AC:3E:C7:7C
subjectKeyIdentifier
8A:31:99:46:92:6B:2B:10:6B:40:AC:D9:B3:BD:52:0C:DE:D2:DE:ED
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 : Feb 24 08:14:43.644 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:14:5D:A7:33:39:27:77:65:37:70:0E:D8: A0:C6:D5:01:55:C2:98:6E:4E:07:DD:27:0D:B6:05:AF: 66:4A:BA:A0:02:21:00:B8:86:FB:A5:2E:77:CC:9C:25: 6A:CA:53:C4:24:4B:64:20:A3:61:72:60:CE:E0:48:F0: 1B:EE:1D:E2:1E:3C:65 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 : Feb 24 08:14:42.876 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:9B:D1:E8:A4:D5:93:CB:04:8F:9B:47: AE:AB:FF:04:F9:77:5C:07:3C:7B:DD:14:41:ED:29:F1: 51:12:7D:7D:7C:02:20:06:08:5B:D3:8B:A4:31:98:22: E5:D1:9D:7F:A5:C1:D3:3C:AC:5F:D2:D6:42:94:CE:0F: 0F:B1:97:DB:44:16:37 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 : Feb 24 08:14:43.810 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:DB:C1:6F:63:ED:D7:FA:82:67:9F:1D: 75:FD:35:0F:6B:E1:5B:12:9B:33:A5:58:87:B1:A7:BD: BF:0C:B4:C4:5A:02:20:70:81:75:18:4E:5F:C7:B3:76: E8:89:17:1F:2C:49:02:15:C4:2D:2E:91:B8:E9:9A:26: 07:DE:0A:14:39:F2:82
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-GCM-SHA384 · Checked 2026-09-28T11:37:38+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R3 DV TLS CA 2020
Issuer
OU=GlobalSign Root CA - R3 O=GlobalSign CN=GlobalSign
Valid from
2020-07-28T00:00:00+00:00
Expires
2029-03-18T00:00:00+00:00
Days remaining
901
Serial (hex)
77BD0E0742D5D9E9D049D774D02A6F9A
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

76:25:38:43:95:09:C4:11:C4:37:D3:C5:67:56:3E:13:78:67:12:81:FC:4A:14:64:AD:D0:31:87:08:43:67:6E
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
0D:98:C0:73:7F:AB:BD:BD:D9:47:4B:49:AD:0A:4A:0C:AC:3E:C7:7C
authorityKeyIdentifier
8F:F0:4B:7F:A8:2E:45:24:AE:4D:50:FA:63:9A:8B:DE:E2:DD:1B:BC
authorityInfoAccess
OCSP - URI:http://ocsp2.globalsign.com/rootr3 CA Issuers - URI:http://secure.globalsign.com/cacert/root-r3.crt
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/root-r3.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.globalsign.com/repository/
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
OU=GlobalSign Root CA - R3 O=GlobalSign CN=GlobalSign
Issuer
C=BE O=GlobalSign nv-sa OU=Root CA CN=GlobalSign Root CA
Valid from
2018-09-19T00:00:00+00:00
Expires
2028-01-28T12:00:00+00:00
Days remaining
487
Serial (hex)
01EE5F169DFF97352B6465D66A
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

44:5E:EC:78:BC:61:21:50:44:A0:37:96:56:AA:2D:5D:B5:E4:2F:76:CB:70:B8:D1:4C:20:77:AA:94:3D:4E:BB
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
subjectKeyIdentifier
8F:F0:4B:7F:A8:2E:45:24:AE:4D:50:FA:63:9A:8B:DE:E2:DD:1B:BC
authorityKeyIdentifier
60:7B:66:1A:45:0D:97:CA:89:50:2F:7D:04:CD:34:A8:FF:FC:FD:4B
authorityInfoAccess
OCSP - URI:http://ocsp.globalsign.com/rootr1
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/root.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.globalsign.com/repository/
-----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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