SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sarna-plastec.ch
SSL/TLS Certificate
SSL/TLS Certificate for sarna-plastec.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sarna-plastec.ch
- Valid from
- Sep 7, 2026
- Valid until
- Dec 6, 2026 (47 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0589C438D12430D50BC02F795CA9A8EE2242
- SHA-256 fingerprint
- 2C:F4:D1:82:B8:75:AE:78:54:BD:57:EE:9E:78:81:37:CB:D7:6F:74:A1:01:4F:56:AA:F0:A4:DC:21:66:BF:6C
- 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 Sep 16, 2026.
Never get surprised by sarna-plastec.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sarna-plastec.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, CNAME, TXT 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.