SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
u-wert.ch
SSL/TLS Certificate
SSL/TLS Certificate for u-wert.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- u-wert.ch
- Valid from
- Jul 20, 2026
- Valid until
- Oct 18, 2026 (29 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 054D4D0AD5C43CC91893B1137E5A4BD28CCA
- SHA-256 fingerprint
- 89:F2:DD:01:0F:B8:4E:59:64:47:15:C7:C9:AC:8F:D6:9C:0C:DA:56:47:3F:4B:55:C2:BD:78:34:F7:AD:6E:BE
- 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 u-wert.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch u-wert.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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