SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

ec2-3-64-155-199.eu-central-1.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-3-64-155-199.eu-central-1.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
lumaa.ai
Valid from
Nov 3, 2026
Valid until
Feb 1, 2027 (89 days remaining)
Public key
EC 256-bit
Serial
06372AEE08405F0B0F41299D7F3612B8818E
SHA-256 fingerprint
6B:EF:99:BC:4E:02:D0:09:3B:CD:5B:FF:6D:8A:00:E8:22:C4:14:D3:B9:1E:A4:33:63:E7:90:24:8F:A4:28:A3
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (10)
auto.lumaa.ai, hospitality.lumaa.ai, insurance.lumaa.ai, legal.lumaa.ai, lumaa.ai, receptionist.lumaa.ai, recruit.lumaa.ai, sales.lumaa.ai, support.lumaa.ai, www.lumaa.ai

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by ec2-3-64-155-199.eu-central-1.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-3-64-155-199.eu-central-1.compute.amazonaws.com continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.