SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
leo-server.de
SSL/TLS Certificate
SSL/TLS Certificate for leo-server.de
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- leo-server.de
- Valid from
- Mar 30, 2026
- Valid until
- Jun 28, 2026 (expired 93 days ago)
- Public key
- RSA 2048-bit
- Serial
- 06DE025803498FFC44B7251D106B562870DF
- SHA-256 fingerprint
- C9:C7:9B:00:8C:FA:77:F2:28:47:CB:5A:3F:02:4A:EC:DB:83:04:FE:E3:5C:53:69:F1:D4:48:48:A1:E0:95: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 leo-server.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch leo-server.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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