SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sms-opomnik.si
SSL/TLS Certificate
SSL/TLS Certificate for sms-opomnik.si
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.sms-opomnik.si
- Valid from
- Jun 12, 2026
- Valid until
- Sep 10, 2026 (44 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 065CABE99BE0415D608A41D6CF57DDDD0067
- SHA-256 fingerprint
- 63:FC:BA:BD:1E:5A:E8:FB:7F:2C:AB:0C:E7:63:E5:D8:79:7E:B3:63:1A:B5:EB:55:B0:3C:B1:7E:8D:CC:4F:B2
- 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.
Never get surprised by sms-opomnik.si's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sms-opomnik.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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