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 zaro.si
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.zaro.si
- Valid from
- Sep 18, 2026
- Valid until
- Dec 17, 2026 (63 days remaining)
- Public key
- EC 256-bit
- Serial
- 0544F21DDC2C4F8B8B918A7866B3C4CB6B1B
- SHA-256 fingerprint
- 03:45:74:2B:48:95:B7:C8:81:7B:5C:7C:CF:09:62:52:D8:D4:43:D3:46:EB:A8:F8:2A:65:C6:43:E1:6B:C6:E7
- Chain
- YE2 → 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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This is today's certificate. Turn on monitoring and we'll watch zaro.si continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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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