SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for dat-t.ru
Hostname mismatch- Issued by (CA)
- GlobalSign nv-sa
- Subject
- *.ozon.ru
- Valid from
- Oct 3, 2025
- Valid until
- Nov 4, 2026 (57 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 7901B69E1821D85855B6FAB0
- SHA-256 fingerprint
- 8E:49:E0:AB:30:98:CE:F7:F5:2C:5E:07:31:A6:FF:13:68:1C:EA:AB:53:D5:2C:36:0F:C0:D2:8C:D2:D7:C8:59
- Chain
- GlobalSign RSA OV SSL CA 2018 → GlobalSign
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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