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 sun-lab.co.jp

Valid
Issued by (CA)
Amazon
Subject
megurogakuen.shop
Valid from
Jul 18, 2026
Valid until
Jan 31, 2027 (187 days remaining)
Public key
RSA 2048-bit
Serial
070DD8B8CA0B70AD8111392F6763EDB1
SHA-256 fingerprint
AA:F9:E8:C4:0C:5D:E1:8C:2C:4E:90:A0:DB:5A:F3:5F:C4:9B:26:E2:C6:5E:70:EE:EE:F8:EC:7F:4A:F3:37:66
Chain
Amazon RSA 2048 M01 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (12)
*.asleep-a.com, *.film-choei.jp, *.footworks-tokyo.com, *.hair-hope.tokyo, *.koruginista-chofu.com, *.megurogakuen.shop, *.shootingstars.jp, *.sun-lab.co.jp, *.yanagiya78.com, *.yuu-sei.co.jp, megurogakuen.shop, sun-lab.co.jp

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 Jul 25, 2026.

Never get surprised by sun-lab.co.jp's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch sun-lab.co.jp 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.