SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kplan-bau.de
SSL/TLS Certificate
SSL/TLS Certificate for kplan-bau.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- kplan-bau.de
- Valid from
- May 31, 2026
- Valid until
- Aug 29, 2026 (24 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06FDE6635D0D7B2E246F67AADD327740D901
- SHA-256 fingerprint
- 90:39:87:BF:D4:92:18:7B:A9:C7:87:30:EC:C2:29:9D:C1:03:8B:74:D8:E4:0F:13:79:DF:15:AC:EE:20:31:20
- 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 kplan-bau.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch kplan-bau.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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