SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ktc-school.com
SSL/TLS Certificate
SSL/TLS Certificate for ktc-school.com
Valid- Issued by (CA)
- Amazon
- Subject
- ktc-school.com
- Valid from
- Dec 23, 2025
- Valid until
- Jan 21, 2027 (124 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 065745454F70DEAF317B5394C338009D
- SHA-256 fingerprint
- A6:3A:4A:6D:F4:43:4E:D9:86:8E:34:70:00:36:ED:03:C9:F6:B0:62:1A:F8:DE:5B:C1:B4:B8:65:AB:9C:C5:1D
- Chain
- Amazon RSA 2048 M04 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
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 Sep 11, 2026.
Never get surprised by ktc-school.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ktc-school.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.
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