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 oztracker.au

Valid
Issued by (CA)
Amazon
Subject
oztracker.au
Valid from
Jan 5, 2026
Valid until
Feb 3, 2027 (193 days remaining)
Public key
RSA 2048-bit
Serial
081DFB51F2980D8B634D97F5197F47D3
SHA-256 fingerprint
5C:10:0C:AA:BD:94:C6:EC:00:63:71:0D:C0:CC:51:85:8E:B7:60:68:04:98:D7:87:01:0B:BF:4A:B3:C1:DC:B2
Chain
Amazon RSA 2048 M01 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (1)
oztracker.au

Certificate Authority Authorization (CAA)

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

Never get surprised by oztracker.au's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch oztracker.au 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.