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

rt-dc.ru · 195.209.67.81:443

Verified
The certificate expires within 30 days.

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

Subject
C=RU ST=Moscow L=Moscow O=JOINT STOCK COMPANY DATA STORAGE CENTER CN=*.rt-dc.ru
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign RSA OV SSL CA 2018
Valid from
2025-09-24T16:01:21+00:00
Expires
2026-10-26T16:01:20+00:00
Days remaining
20
Serial (hex)
7F97E4B18B8924BA8457DBDB
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.rt-dc.ru, DNS:rt-dc.ru

SHA-256 fingerprint

D2:73:B1:02:8A:60:A9:5C:45:73:E1:85:10:4E:39:A3:D7:4A:FE:36:AE:FA:0D:B2:FD:19:1E:12:0D:4E:1F:3B
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
authorityInfoAccess
CA Issuers - URI:http://secure.globalsign.com/cacert/gsrsaovsslca2018.crt OCSP - URI:http://ocsp.globalsign.com/gsrsaovsslca2018
certificatePolicies
Policy: 1.3.6.1.4.1.4146.1.20 CPS: https://www.globalsign.com/repository/ Policy: 2.23.140.1.2.2
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/gsrsaovsslca2018.crl
subjectAltName
DNS:*.rt-dc.ru, DNS:rt-dc.ru
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityKeyIdentifier
F8:EF:7F:F2:CD:78:67:A8:DE:6F:8F:24:8D:88:F1:87:03:02:B3:EB
subjectKeyIdentifier
86:87:25:E6:F6:E3:0F:97:E7:BD:AD:59:F1:E2:DD:23:C5:FE:9E:5B
ct_precert_scts
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 : Sep 24 16:01:24.980 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:A9:74:2B:E9:4F:E9:66:2C:71:E8:5A: 7E:64:53:63:44:B2:88:6E:50:F9:34:2D:36:DB:2E:D5: AE:D8:F0:06:1A:02:21:00:B2:43:B9:A3:07:6E:76:DB: 7F:F2:27:02:59:BF:FA:5B:FC:B2:37:F4:EC:03:14:21: 75:8E:C6:B6:60:08:16:1F Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E: F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7 Timestamp : Sep 24 16:01:24.988 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:DA:41:A1:77:AC:76:E6:8B:74:0E:F9: F6:0B:49:2B:85:0D:35:AA:7C:7E:DA:9F:35:3A:85:2F: 56:2D:E9:F4:53:02:21:00:85:55:23:57:95:0F:9C:12: 23:C5:75:C6:55:AA:CA:F1:4D:E7:60:C9:CD:7D:A2:EB: 86:40:8B:80:B4:7B:AA:4E 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 : Sep 24 16:01:24.955 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:24:23:40:4E:43:93:D1:43:10:F9:1C:CC: A5:F6:F1:6A:25:A1:E0:5A:F0:31:7D:3D:ED:C9:E2:46: DF:6E:CA:D2:02:21:00:99:80:4F:92:5D:88:41:B6:13: C3:73:4E:12:0C:B1:33:0A:90:D8:19:23:44:B3:70:BD: 14:77:A2:83:A6:7D:C6
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-05T22:38:10+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign RSA OV SSL CA 2018
Issuer
OU=GlobalSign Root CA - R3 O=GlobalSign CN=GlobalSign
Valid from
2018-11-21T00:00:00+00:00
Expires
2028-11-21T00:00:00+00:00
Days remaining
777
Serial (hex)
01EE5F221DFC623BD4333A8557
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

B6:76:FF:A3:17:9E:88:12:09:3A:1B:5E:AF:EE:87:6A:E7:A6:AA:F2:31:07:8D:AD:1B:FB:21:CD:28:93:76:4A
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
F8:EF:7F:F2:CD:78:67:A8:DE:6F:8F:24:8D:88:F1:87:03:02:B3:EB
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
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-----

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

View certificate JSON

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