SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
plan4-you.ch
SSL/TLS Certificate
SSL/TLS Certificate for plan4-you.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- plan4-you.ch
- Valid from
- Sep 2, 2026
- Valid until
- Dec 1, 2026 (81 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 061A8346A4F351810A5808F64E7DB1162599
- SHA-256 fingerprint
- A9:AF:F9:4C:66:FA:8C:50:F5:03:42:91:FA:F1:28:F4:D1:C8:C5:91:53:EA:DE:7D:54:47:B7:46:C8:71:E9:56
- 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 plan4-you.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch plan4-you.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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