SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
luftfeuchte-sensor.de
SSL/TLS Certificate
SSL/TLS Certificate for luftfeuchte-sensor.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- luftfeuchte-sensor.de
- Valid from
- Sep 7, 2026
- Valid until
- Dec 6, 2026 (88 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05E22C70C7C018D9079569FB57CD101F790C
- SHA-256 fingerprint
- B4:DA:43:E8:E3:1C:50:48:8E:F3:B7:1E:AE:0E:A8:D4:99:3A:EF:D8:4F:6C:19:9C:ED:C0:66:89:42:17:4D:4C
- 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 luftfeuchte-sensor.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch luftfeuchte-sensor.de 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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