SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kmu-dns.ch
SSL/TLS Certificate
SSL/TLS Certificate for kmu-dns.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- kmu-dns.ch
- Valid from
- Aug 28, 2026
- Valid until
- Nov 26, 2026 (77 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06C31489DC44983364C22F45EC889486B6CD
- SHA-256 fingerprint
- 20:92:25:C3:58:41:69:DA:B6:06:04:1E:4B:E4:DE:94:34:A1:04:BA:0E:93:ED:3B:52:2E:70:28:34:66:35:22
- 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.
Never get surprised by kmu-dns.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch kmu-dns.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, 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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