SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sm-western.ch
SSL/TLS Certificate
SSL/TLS Certificate for sm-western.ch
Valid- Issued by (CA)
- Google Trust Services
- Subject
- sm-western.ch
- Valid from
- Oct 15, 2026
- Valid until
- Jan 13, 2027 (73 days remaining)
- Public key
- EC 256-bit
- Serial
- B20D3FAFC1688B620E6377D350A358C1
- SHA-256 fingerprint
- 71:46:1F:75:C6:74:D3:1C:64:C9:17:E3:7A:87:A1:34:83:24:3A:57:DD:B6:9D:A1:70:A6:D5:53:E2:36:95:8B
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by sm-western.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sm-western.ch 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, CNAME, TXT 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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