SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
dune-2.ru
SSL/TLS Certificate
SSL/TLS Certificate for dune-2.ru
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- dune-2.ru
- Valid from
- Sep 2, 2026
- Valid until
- Dec 1, 2026 (40 days remaining)
- Public key
- EC 256-bit
- Serial
- 05CD8C1AA9FD74E5C17974AA0491D4B86C0F
- SHA-256 fingerprint
- 3A:26:B2:AB:37:DF:79:1C:6C:0A:4A:E5:98:08:E1:52:C2:8A:2F:81:AE:96:7C:D5:2B:CD:0F:75:29:25:A5:69
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Oct 5, 2026.
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Uptime
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DNS changes
We watch NS, MX, CAA, CNAME, TXT 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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