SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
aus-edu.us
SSL/TLS Certificate
SSL/TLS Certificate for aus-edu.us
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- aus-edu.us
- Valid from
- Sep 24, 2026
- Valid until
- Dec 23, 2026 (52 days remaining)
- Public key
- EC 256-bit
- Serial
- 0527782F58CAA27839CEF9DE6DF56CF0F0C0
- SHA-256 fingerprint
- D2:49:FE:8D:44:11:03:1A:53:9E:FB:05:EC:A2:39:54:DF:F7:44:97:7B:A9:2A:40:CD:5F:70:83:FE:69:9D:D0
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by aus-edu.us's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch aus-edu.us 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, 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.