SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ste-sch.ch
SSL/TLS Certificate
SSL/TLS Certificate for ste-sch.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- ste-sch.ch
- Valid from
- Jun 7, 2026
- Valid until
- Sep 5, 2026 (44 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 063BC4C1E8212CBEEA0ADA9DB405A286E51D
- SHA-256 fingerprint
- 9F:85:BF:05:CF:B6:95:D3:B8:1F:B4:AB:45:73:1F:95:7D:C8:59:9F:87:50:04:EC:9A:33:77:2C:1D:F8:52:20
- 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.
Never get surprised by ste-sch.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ste-sch.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.