SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
johne-gmbh.de
SSL/TLS Certificate
SSL/TLS Certificate for johne-gmbh.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- johne-gmbh.de
- Valid from
- Sep 26, 2026
- Valid until
- Dec 25, 2026 (89 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 06B2F5703E14680A5FEA6C14E6693778BC69
- SHA-256 fingerprint
- 07:AE:E7:7B:C6:A7:B6:08:B4:33:9C:1C:0D:DE:77:34:8D:2A:F3:D2:0E:8F:41:8B:C0:75:15:15:60:8F:2A:C1
- 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 johne-gmbh.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch johne-gmbh.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.