SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for zlin-avion.com

Valid
Issued by (CA)
Let's Encrypt
Subject
zlin-avion.com
Valid from
Sep 30, 2026
Valid until
Dec 29, 2026 (85 days remaining)
Public key
RSA 2048-bit
Serial
057CC6D540CAC31D417081C920B4F0604906
SHA-256 fingerprint
C2:7A:12:2D:4E:2A:7C:D9:6D:A2:47:76:FE:F1:5D:5E:C7:28:8F:33:4E:1F:31:61:A3:04:BC:26:37:FE:8B:35
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
www.zlin-avion.com, zlin-avion.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

We've observed 1 previous certificate for this host. This certificate has been served since Oct 4, 2026.

Never get surprised by zlin-avion.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch zlin-avion.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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