SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
so-mobil.ch
SSL/TLS Certificate
SSL/TLS Certificate for so-mobil.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- so-mobil.ch
- Valid from
- Jul 6, 2026
- Valid until
- Oct 4, 2026 (68 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 051B7F18CC808AD2384604C15BD74AB4647D
- SHA-256 fingerprint
- 65:BE:28:01:40:09:89:65:DB:CC:DA:2E:E4:06:BC:FB:21:F7:38:1F:4C:5E:CD:19:2F:E1:FA:93:98:7E:04:B5
- 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.
Never get surprised by so-mobil.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch so-mobil.ch continuously, notifying you the moment anything moves across all three signals:
Uptime
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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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