SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
guard-academy.com
SSL/TLS Certificate
SSL/TLS Certificate for guard-academy.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- guard-academy.com
- Valid from
- Oct 5, 2026
- Valid until
- Jan 3, 2027 (84 days remaining)
- Public key
- EC 256-bit
- Serial
- 054B1316D15B2D2A2C1E952507251AFEA039
- SHA-256 fingerprint
- 3C:F5:3B:4C:EF:E5:02:0B:FA:26:C9:31:57:54:89:F9:BC:BB:95:14:2E:06:0A:FC:8B:71:6A:73:42:0E:3B:E1
- 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 guard-academy.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch guard-academy.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.