SSL/TLS Certificate Lookup

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

ec2-43-200-27-209.ap-northeast-2.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-43-200-27-209.ap-northeast-2.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Amazon
Subject
jnu-parking.com
Valid from
Jun 28, 2026
Valid until
Jan 11, 2027 (161 days remaining)
Public key
RSA 2048-bit
Serial
0847FD53BC561ED5A7D1C7EDD7520E17
SHA-256 fingerprint
C7:90:FD:72:28:31:18:74:9C:3F:73:79:DF:B4:B8:D6:21:34:19:2E:0C:91:C2:17:0C:90:0A:33:80:CB:09:75
Chain
Amazon RSA 2048 M04 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (5)
*.dev.jnu-parking.com, *.jnu-parking.com, *.mgt.jnu-parking.com, *.prod.jnu-parking.com, jnu-parking.com

Certificate Authority Authorization (CAA)

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

Never get surprised by ec2-43-200-27-209.ap-northeast-2.compute.amazonaws.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ec2-43-200-27-209.ap-northeast-2.compute.amazonaws.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.