SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
key-zona.com
SSL/TLS Certificate
SSL/TLS Certificate for key-zona.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- key-zona.com
- Valid from
- Aug 15, 2026
- Valid until
- Nov 13, 2026 (68 days remaining)
- Public key
- EC 256-bit
- Serial
- 0582A1DD588FAC665B115800E791779ACFFE
- SHA-256 fingerprint
- 58:3E:23:69:A6:02:DE:C5:F9:BF:E4:D2:61:0A:95:1C:DF:B0:F4:CA:A1:24:EC:D7:9E:17:1F:AE:CB:F9:44:68
- 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.
This certificate has been served since Aug 12, 2026.
Never get surprised by key-zona.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch key-zona.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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