SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
lub-oase.de
SSL/TLS Certificate
SSL/TLS Certificate for lub-oase.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- lub-oase.de
- Valid from
- Jul 9, 2026
- Valid until
- Oct 7, 2026 (51 days remaining)
- Public key
- EC 256-bit
- Serial
- 0504ABB2E8F9BE7225FA4D7D1A91A2D3DD08
- SHA-256 fingerprint
- 91:B1:5F:75:2A:E1:43:75:91:A1:C4:66:21:75:6E:20:73:5A:54:79:41:F4:ED:6C:79:9A:6E:DD:9C:2F:19:85
- 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.
This certificate has been served since Aug 4, 2026.
Never get surprised by lub-oase.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch lub-oase.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.