SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
lfs-technology.de
SSL/TLS Certificate
SSL/TLS Certificate for lfs-technology.de
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- realtime.at
- Valid from
- Oct 5, 2026
- Valid until
- Jan 3, 2027 (89 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0682C6DDDBBFF51FD014956B5112E859B0A1
- SHA-256 fingerprint
- E9:84:CB:43:08:1A:97:11:91:04:33:69:3F:CF:67:5B:BC:8A:9D:54:9E:7E:7D:13:0B:0A:55:65:54:39:39:14
- 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.
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This is today's certificate. Turn on monitoring and we'll watch lfs-technology.de continuously, notifying you the moment anything moves across all three signals:
Uptime
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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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