SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
i-school.ch
SSL/TLS Certificate
SSL/TLS Certificate for i-school.ch
Valid- Issued by (CA)
- Google Trust Services
- Subject
- i-school.ch
- Valid from
- Jun 3, 2026
- Valid until
- Sep 1, 2026 (33 days remaining)
- Public key
- EC 256-bit
- Serial
- 6AABE4360840F75113FCB1E11A4E4E47
- SHA-256 fingerprint
- B9:B5:0B:9B:DA:FE:20:A9:A2:B8:D2:1B:ED:7A:04:50:CD:08:8F:63:0C:9A:C2:BF:CE:E6:1D:24:A3:77:01:2F
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by i-school.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch i-school.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.
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