SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
prisma-hsg.ch
SSL/TLS Certificate
SSL/TLS Certificate for prisma-hsg.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- prisma-hsg.ch
- Valid from
- Jun 15, 2026
- Valid until
- Sep 13, 2026 (44 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 0652818683F1397F53454A4E0F6C0013AFF7
- SHA-256 fingerprint
- 02:9A:22:6D:01:A1:07:45:D0:3A:06:32:21:A2:43:F1:96:82:1F:A1:3B:3C:85:7B:CB:15:49:A4:23:32:9E:B5
- 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 prisma-hsg.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch prisma-hsg.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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