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

mail.idstrategy.com.ua · 185.187.81.54:443

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

Certificate verification failed

Subject
CN=mail.idstrategy.com.ua O=LLC Idstrategy OU=IT L=Kyiv C=UA
Issuer
CN=mail.idstrategy.com.ua O=LLC Idstrategy OU=IT L=Kyiv C=UA
Valid from
2022-02-06T21:56:08+00:00
Expires
2027-02-05T21:56:08+00:00
Days remaining
110
Serial (hex)
A860C95D35A4D634
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

03:C2:D9:D2:86:48:26:8F:0D:B3:8A:46:DF:27:9E:E4:72:1F:A9:89:3D:AB:66:6A:6B:C9:2A:45:44:70:50:51
Certificate extensions & PEM
1.3.6.1.4.1.10311.1.2.325
1
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-18T18:23:42+00:00

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

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