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

ertelecom.ru · 91.221.164.66:443

Verified

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

Subject
C=RU ST=Perm Krai L=Perm O=JSC Er-Telecom Holding CN=*.ertelecom.ru
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign RSA OV SSL CA 2018
Valid from
2026-07-03T14:34:21+00:00
Expires
2027-01-18T14:34:21+00:00
Days remaining
112
Serial (hex)
09589DDD57B9E18601A0F495
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.ertelecom.ru, DNS:ertelecom.ru

SHA-256 fingerprint

1B:30:A9:C3:E3:EF:E2:52:54:68:1F:C3:BF:69:6E:F9:FA:0F:0F:EF:7A:D2:DA:A5:68:22:D3:24:55:F1:A1:CD
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:*.ertelecom.ru, DNS:ertelecom.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
11:08:8B:23:8B:8E:A3:0E:09:AE:44:F1:F3:53:EF:32:4D:86:E6:EC
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 : Jul 3 14:34:26.160 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:EA:C4:23:A6:A8:5F:3B:1B:63:22:A2: D4:23:83:61:1C:45:95:39:E5:95:3E:50:3E:E0:38:DF: 9C:1E:7A:EE:5F:02:21:00:87:69:F2:4B:B8:AD:36:AF: CC:10:A0:BE:DE:62:F2:80:9A:00:BB:E5:B8:C8:CE:13: 48:8E:6D:C3:14:0E:D9:D9 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 : Jul 3 14:34:26.168 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:BA:52:E7:D2:48:48:D1:92:9A:EF:64: 25:28:F2:71:F2:46:B2:93:95:24:7E:D6:22:22:4E:92: 48:A1:85:60:5D:02:21:00:D5:5A:1A:9B:DD:A7:A9:87: EF:6D:77:0A:18:67:FE:4D:BC:8C:54:29:8D:69:DB:28: 1E:D3:E7:E9:F5:A9:FE:AF 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 : Jul 3 14:34:25.985 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:FD:7B:9E:5B:66:C9:26:93:7C:67:4E: 76:D4:0C:67:6E:5A:B5:BD:2D:8B:14:C7:5B:3B:6A:52: F8:3E:8C:29:4F:02:20:37:EE:0F:73:D1:09:D7:E0:7A: 99:33:4C:D4:33:D8:9D:E2:F7:16:C3:79:C3:EF:6D:CE: D1:D7:83:93:43:1F:A3
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-27T18:41:29+00:00

Server-presented chain · 2 additional certificates

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
785
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-----

Chain certificate 2

Subject
OU=GlobalSign Root CA - R3 O=GlobalSign CN=GlobalSign
Issuer
OU=GlobalSign Root CA - R3 O=GlobalSign CN=GlobalSign
Valid from
2009-03-18T10:00:00+00:00
Expires
2029-03-18T10:00:00+00:00
Days remaining
902
Serial (hex)
04000000000121585308A2
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

CB:B5:22:D7:B7:F1:27:AD:6A:01:13:86:5B:DF:1C:D4:10:2E:7D:07:59:AF:63:5A:7C:F4:72:0D:C9:63:C5:3B
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
-----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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