SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
duopol.si
SSL/TLS Certificate
SSL/TLS Certificate for duopol.si
Valid- Issued by (CA)
- GoGetSSL
- Subject
- www.duopol.si
- Valid from
- Sep 4, 2025
- Valid until
- Oct 4, 2026 (58 days remaining)
- Public key
- EC 384-bit
- Serial
- 3D45661D214E5FCE31C02569CAE1202D
- SHA-256 fingerprint
- 12:28:89:2B:8B:78:16:2D:90:73:C6:E0:77:79:AD:9E:9E:1D:26:6C:33:FD:E7:49:26:75:75:B5:D0:7B:5C:7C
- Chain
- GoGetSSL ECC DV SSL CA 2 → Sectigo Public Server Authentication Root E46 → USERTrust ECC Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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This is today's certificate. Turn on monitoring and we'll watch duopol.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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