SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cr-unit.ch
SSL/TLS Certificate
SSL/TLS Certificate for cr-unit.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- cr-units.ch
- Valid from
- Aug 27, 2026
- Valid until
- Nov 25, 2026 (50 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0633A7E395831AE1A6F5866F7F59684422EF
- SHA-256 fingerprint
- D1:62:1B:FD:2A:00:39:58:FA:37:97:19:88:A4:0B:65:0A:A8:B3:CB:D1:A5:6A:1B:7B:5D:D8:43:ED:43:1C:87
- 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 cr-unit.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch cr-unit.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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