SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sd-transport.si
SSL/TLS Certificate
SSL/TLS Certificate for sd-transport.si
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- whm.sd-transport.si
- Valid from
- Sep 3, 2026
- Valid until
- Dec 2, 2026 (66 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05EAD7C4215AD8DB92C1659D9D1C26C1049B
- SHA-256 fingerprint
- 10:85:8D:E1:0E:47:E5:D6:0E:D4:27:61:BF:BD:37:1F:95:5A:43:57:9E:DD:BB:95:B6:B4:97:52:29:4A:7B:E0
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 18, 2026.
Never get surprised by sd-transport.si's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sd-transport.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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