SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
zingg-haustechnik.ch
SSL/TLS Certificate
SSL/TLS Certificate for zingg-haustechnik.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- zingg-haustechnik.ch
- Valid from
- Jul 1, 2026
- Valid until
- Sep 29, 2026 (57 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 052A05E84CC2BF745F17D51D3DC06FBFC348
- SHA-256 fingerprint
- 82:3D:B8:71:9B:59:55:9B:7A:D8:E8:47:BC:DD:CD:F5:5E:2F:02:C7:9B:8F:E5:4B:2C:90:48:9E:74:5D:6D:A3
- 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 zingg-haustechnik.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch zingg-haustechnik.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.