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 nz-network.co.th

Valid
Issued by (CA)
Let's Encrypt
Subject
nz-network.co.th
Valid from
Jul 24, 2026
Valid until
Oct 22, 2026 (88 days remaining)
Public key
RSA 2048-bit
Serial
064DCC534CB2C6D7300BEB55429447E6E7C0
SHA-256 fingerprint
8F:14:2B:12:C5:56:74:CA:B5:7A:A2:38:32:3C:64:FA:23:70:D5:C4:4D:15:31:D9:F9:A5:0A:54:C1:F4:8C:BD
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (1)
nz-network.co.th

Certificate Authority Authorization (CAA)

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

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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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