SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jaehne-gmbh.de
SSL/TLS Certificate
SSL/TLS Certificate for jaehne-gmbh.de
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- www.jaehne-gmbh.de
- Valid from
- Feb 5, 2026
- Valid until
- May 6, 2026 (expired 92 days ago)
- Public key
- RSA 2048-bit
- Serial
- 056DFC09D2323FED7BFA3C2FC6F203FDD483
- SHA-256 fingerprint
- 11:21:02:71:9A:E2:E7:76:53:75:5D:51:7F:64:29:40:DB:73:7A:C2:93:54:FF:18:E3:35:72:DA:93:FC:9B:F5
- Chain
- R12 → 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 jaehne-gmbh.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch jaehne-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.