SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sonnenberg-zurich.ch
SSL/TLS Certificate
SSL/TLS Certificate for sonnenberg-zurich.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sonnenberg-zurich.ch
- Valid from
- Nov 6, 2026
- Valid until
- Feb 4, 2027 (85 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05FBA773B69EDEA8B43865C29D1D1ACA4558
- SHA-256 fingerprint
- 82:CE:AF:52:7B:8A:17:EE:D7:4D:76:55:E5:7E:7A:73:DB:20:06:CB:EC:37:4F:11:B0:0F:59:93:E0:69:2B:DD
- 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 sonnenberg-zurich.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sonnenberg-zurich.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.