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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

TLSv1.3

icomtex.ru · 87.255.238.93:443

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
CN=icomtex.ru
Issuer
C=US O=Let's Encrypt CN=E8
Valid from
2026-01-10T18:38:55+00:00
Expires
2026-04-10T18:38:54+00:00
Days remaining
-180
Serial (hex)
05198D7AC3578BF4FBCC6031324C169C174B
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:icomtex.ru, DNS:www.icomtex.ru

SHA-256 fingerprint

A1:62:7C:D7:A4:22:D9:AF:C5:35:63:08:21:5A:3A:A0:4A:37:56:BC:73:5E:D6:2A:4C:9D:73:F9:29:F3:FB:7A
Certificate extensions & PEM
keyUsage
Digital Signature
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
87:5F:9C:BC:A1:6D:8D:84:C7:DC:13:28:51:57:EC:FF:CA:3F:38:08
authorityKeyIdentifier
8F:0D:13:A2:F6:2E:7E:D1:50:6C:33:18:38:5D:59:8E:23:72:91:CA
authorityInfoAccess
CA Issuers - URI:http://e8.i.lencr.org/
subjectAltName
DNS:icomtex.ru, DNS:www.icomtex.ru
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://e8.c.lencr.org/76.crl
ct_precert_scts
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 : Jan 10 19:37:26.062 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:EB:68:D2:67:20:7C:6C:75:5F:2F:2D: 6A:39:9B:B7:5A:1C:7D:53:06:4D:6A:C1:D4:39:44:71: 44:AA:B1:9C:D5:02:21:00:D4:F6:8F:20:7C:AA:20:C0: 41:78:13:D3:04:C3:99:10:FF:97:F5:46:D4:12:64:E8: 3B:4B:B7:C0:2D:D3:D5:04 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : E3:23:8D:F2:8D:A2:88:E0:AA:E0:AC:F0:FA:90:C9:85: F0:B6:BF:F5:D2:A5:27:B0:01:FC:1C:44:58:C4:B6:E8 Timestamp : Jan 10 19:37:26.523 2026 GMT Extensions: 00:00:05:00:2E:FA:01:56 Signature : ecdsa-with-SHA256 30:45:02:20:7B:E5:FA:F0:88:01:36:B4:28:4F:AB:3A: F1:D2:DC:31:82:D8:4F:93:90:0B:17:05:AA:BF:FF:6A: 85:04:CD:FB:02:21:00:FF:A8:CB:EC:0F:D1:68:E0:86: DE:D6:6A:A1:13:CB:FA:A5:DC:5F:1E:B5:94:3F:ED:11: 48:8F:DC:5D:09:5C:47
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-06T20:26:19+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=E8
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2024-03-13T00:00:00+00:00
Expires
2027-03-12T23:59:59+00:00
Days remaining
157
Serial (hex)
63959363C24E7082715918BFC3D7ED56
Signature
RSA-SHA256
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

83:62:4F:D3:38:C8:D9:B0:23:C1:8A:67:CB:7A:9C:05:19:DA:43:D1:17:75:B4:C6:CB:DA:D4:5C:3D:99:7C:52
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
8F:0D:13:A2:F6:2E:7E:D1:50:6C:33:18:38:5D:59:8E:23:72:91:CA
authorityKeyIdentifier
79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
authorityInfoAccess
CA Issuers - URI:http://x1.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://x1.c.lencr.org/ 
-----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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