SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
zingg-dive.ch
SSL/TLS Certificate
SSL/TLS Certificate for zingg-dive.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- zingg-dive.ch
- Valid from
- Sep 15, 2026
- Valid until
- Dec 14, 2026 (32 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05C45EA51E485320D444843AB9D91F2061BD
- SHA-256 fingerprint
- FF:12:6C:0E:BE:3B:21:4B:5C:CB:90:79:1A:FA:C4:4B:7E:3B:16:2C:CC:24:5E:63:DD:3C:69:22:56:3D:01:3D
- 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.
This certificate has been served since Nov 11, 2026.
Never get surprised by zingg-dive.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch zingg-dive.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.