SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ucionica.hr
SSL/TLS Certificate
SSL/TLS Certificate for ucionica.hr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- ucionica.hr
- Valid from
- Jul 27, 2026
- Valid until
- Oct 25, 2026 (86 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 058923B803B3AF550FF9E45F0B4D1B9E1CC0
- SHA-256 fingerprint
- A3:2C:1A:03:F2:6A:60:91:1A:18:6B:7E:B7:13:6C:A6:79:C1:D9:2C:7F:85:5A:68:36:DA:4D:2B:0C:EF:2A:A3
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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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