SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
k-group.ch
SSL/TLS Certificate
SSL/TLS Certificate for k-group.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- k-group.ch
- Valid from
- Jul 25, 2026
- Valid until
- Oct 23, 2026 (42 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 068017961DEA418F5C859450FE361259471C
- SHA-256 fingerprint
- 53:AC:15:EF:F9:36:E9:A7:7C:E9:79:79:34:D7:BF:C5:18:80:C1:AF:1B:F6:F4:33:31:ED:9B:98:1F:C4:BA:7F
- 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.
This certificate has been served since Aug 25, 2026.
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This is today's certificate. Turn on monitoring and we'll watch k-group.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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