SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for b-s-k.ch
Valid- Issued by (CA)
- Google Trust Services
- Subject
- b-s-k.ch
- Valid from
- Oct 27, 2026
- Valid until
- Jan 25, 2027 (80 days remaining)
- Public key
- EC 256-bit
- Serial
- 49655B136AB16CC80E38DEE939FF7C29
- SHA-256 fingerprint
- E2:01:12:B0:71:CA:32:2E:A9:90:D4:02:E9:5B:EC:EB:68:39:04:E0:07:E2:A9:35:56:D4:AF:30:99:23:A1:97
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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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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