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 z-p-m.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- z-p-m.ch
- Valid from
- Jun 14, 2026
- Valid until
- Sep 12, 2026 (50 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 060E8A95E42C22CDE2787C4EFAE82B55D84C
- SHA-256 fingerprint
- 44:84:46:93:32:B9:0D:6A:40:BF:FF:CF:E6:BE:C7:26:2A:CD:D8:16:82:F5:8B:DF:87:3A:0A:31:2A:8E:6E: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.
Never get surprised by z-p-m.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch z-p-m.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.