SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
regioon.de
SSL/TLS Certificate
SSL/TLS Certificate for regioon.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- regioon.de
- Valid from
- Jun 8, 2026
- Valid until
- Sep 6, 2026 (43 days remaining)
- Public key
- EC 256-bit
- Serial
- 062CABC5452B0C6B0A789D085E5F61ABD834
- SHA-256 fingerprint
- 05:00:02:F5:77:6E:77:20:CA:A2:DA:B7:3A:FD:34:F7:C0:55:B2:7B:4F:B7:B6:95:F2:3C:B0:47:F5:A6:43:9C
- Chain
- YE1 → Root YE → ISRG Root X2 → 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 regioon.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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