SSL/TLS Certificate Lookup

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

SSL/TLS Certificate for aikura-denki.com

Valid
Issued by (CA)
Let's Encrypt
Subject
aikura-denki.com
Valid from
May 30, 2026
Valid until
Aug 28, 2026 (34 days remaining)
Public key
RSA 2048-bit
Serial
0699D4BCF0279DAABCDE925AC98110A394E3
SHA-256 fingerprint
67:45:CD:64:F9:DB:A0:C6:E9:8B:AE:30:73:83:A1:F1:50:96:5E:18:F5:40:C8:E0:98:86:8C:5A:3E:60:ED:B5
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
aikura-denki.com, www.aikura-denki.com

Certificate Authority Authorization (CAA)

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

Never get surprised by aikura-denki.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch aikura-denki.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.

Monitor this certificate free

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