SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
lu-plan.com
SSL/TLS Certificate
SSL/TLS Certificate for lu-plan.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- lu-plan.com
- Valid from
- Aug 4, 2026
- Valid until
- Nov 2, 2026 (48 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 060E1BC9BA41C5674AA4D30C032BE03B2E61
- SHA-256 fingerprint
- 35:FC:EC:8E:EC:A6:70:8E:8F:C1:94:9E:99:08:9D:AE:09:5A:E5:65:D1:BB:0A:D2:11:C9:B5:06:31:06:2D:09
- Chain
- YR1 → 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 lu-plan.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch lu-plan.com 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.