SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
os-prezih.si
SSL/TLS Certificate
SSL/TLS Certificate for os-prezih.si
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- voranc.splet.arnes.si
- Valid from
- Sep 29, 2026
- Valid until
- Dec 28, 2026 (70 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06805342E290DDA840A82D4CC6FECB8763C9
- SHA-256 fingerprint
- AE:4E:A6:3B:DB:3E:A2:2A:86:EF:80:27:9B:50:5D:F7:2D:5A:44:68:8E:67:A5:40:BB:0D:9F:C2:E6:A3:A5:75
- Chain
- YR1 → Root YR → 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 9, 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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