SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
key-tool.com
SSL/TLS Certificate
SSL/TLS Certificate for key-tool.com
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- key-tool.com
- Valid from
- Jan 2, 2026
- Valid until
- Feb 2, 2027 (156 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 93BF52F369CDFCB2228B66DCF591756E
- SHA-256 fingerprint
- 64:86:84:2D:2F:A6:A0:EB:F5:41:54:D3:30:A1:47:9F:5E:88:3A:9E:88:98:3E:2F:8F:BB:C2:FF:42:27:8C:F1
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by key-tool.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch key-tool.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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