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 ba-ch.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- ba-ch.ch
- Valid from
- Oct 4, 2026
- Valid until
- Jan 2, 2027 (75 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06440427EA976ADA4E7F25CA9585EB90B3B7
- SHA-256 fingerprint
- 80:AB:A9:30:EF:8A:A7:A4:2F:91:81:7B:CA:95:8E:FB:E3:53:88:64:CD:36:B7:3E:7D:91:E6:99:34:1F:4E:4D
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 10, 2026.
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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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