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 nettek.com

Valid
Issued by (CA)
Let's Encrypt
Subject
nettek.com
Valid from
Sep 3, 2026
Valid until
Dec 2, 2026 (67 days remaining)
Public key
RSA 2048-bit
Serial
06282F7EFE8E72202D292EBFA85CD919981A
SHA-256 fingerprint
01:95:12:80:BA:CD:94:26:30:42:87:35:44:56:F9:0E:93:C7:7C:0B:A2:FD:78:B2:50:52:6C:A4:26:45:78:9F
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (4)
nettek.com, nettek.net, www.nettek.com, www.nettek.net

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 Sep 21, 2026.

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This is today's certificate. Turn on monitoring and we'll watch nettek.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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